# How to choose a medical chronology service in 2026

> How to choose a medical chronology service: real 2026 prices per page, turnaround, a 12-question vetting checklist, and a test to run on your worst file first.

Canonical page: https://medrecords.ai/guides/how-to-choose-a-medical-chronology-service/

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[Guides](https://medrecords.ai/guides/) › How to choose a medical chronology service

## How to choose a medical chronology service

To choose a medical chronology service, run 1 of your own messy files through it and check 4 things: every entry links to its source page, duplicates and wrong-patient pages are removed, gaps and missing records are flagged, and a qualified person verifies the draft. Expect about $0.05 to $0.50+ per page and minutes to 10 business days.

By [Ahmed Jemaa](https://medrecords.ai/authors/ahmed-jemaa/), Co-Founder & CEO of Medrecords AI · Published 23 Oct 2026 · Updated 23 Oct 2026

Key takeaways
- Judge a chronology service on evidence handling first: page cites, duplicates, wrong-patient pages, gaps and missing records. Price and speed come second.
- Published 2026 prices run from about $0.05 per page (AI software) to $0.50+ per page (manual review). Per-page pricing that looks cheap on a 300-page file adds up on a 3,000-page workers' comp file.
- Turnaround runs from minutes (software, before review) to 3 to 10 business days (full service). Ask for a number of business days on a 1,000-page file.
- What you send decides what you get back: the full production, a short case brief, the date range including pre-incident records, and the issues in dispute.
- Run your own messiest closed file through every vendor on your shortlist before you sign. A sample file the vendor picked tells you little.
- No service or tool should give a causation opinion inside the timeline. The record states facts; a qualified person makes the call.

### What a medical chronology service delivers

A medical chronology service turns a stack of medical records into a dated timeline of care, 1 row per encounter, with each row tied to the page it came from. Buyers are usually personal injury firms, defense firms, insurers, TPAs, IME companies and legal nurse consultants. The timeline is the base layer. The summary, the demand letter, the deposition outline and the expert report are all built on top of it. For the format itself, see [what a medical chronology is](https://medrecords.ai/guides/what-is-a-medical-chronology/) and [how to write one](https://medrecords.ai/guides/how-to-write-a-medical-chronology/).

#### The fields every row should carry

Formats differ between vendors, but a usable chronology carries the same core fields on every row. If a sample you are shown is missing 2 or 3 of these, ask why.

| Field | What it holds | Why it matters |
| --- | --- | --- |
| Date of service | The date care was given, not the date the record was printed or faxed. | Sorting by print date is a common error and breaks the sequence. |
| Provider and facility | The treating clinician and where they saw the patient. | Lets you group care by provider and spot records that were never produced. |
| Visit type | ER, office visit, surgery, PT session, imaging, telehealth. | Shows the pattern of care at a glance. |
| Diagnosis | The diagnosis as written, with the code where the record has one. | Ties each claimed injury to a documented diagnosis. |
| Treatment and medications | Procedures, prescriptions, injections, referrals. | Supports damages and future care claims. |
| Tests and imaging | MRI, X-ray, CT and lab results with their findings. | Objective evidence is the hardest to argue with, and the easiest to skip. |
| Findings | What the provider wrote, quoted or closely paraphrased. | Keeps the timeline factual instead of argumentative. |
| Source cite | Page number, Bates number or a hyperlink into the PDF. | Without it, nobody can check the row. |
| Reviewer note | Comments from the person checking the file, kept in a separate column. | Separates fact from interpretation. |

[](https://medrecords.ai/content-hub/samples/medical-chronology-template/)

#### What separates a good vendor from an average one

- A list of duplicate pages removed, so the same visit does not appear 3 times.
- Flags for treatment gaps, contradictions between providers and records referenced but never produced.
- Detection of pages that belong to a different patient. Mixed records show up in more productions than most buyers expect.
- Correct provider attribution. A note signed by 1 doctor and filed under another is an easy error to make and an easy one for the other side to exploit.
- Bookmarked or hyperlinked exports, so the cite survives when the file leaves the vendor's system.
- Optional extras: a provider list, a billing summary, a pre-incident history section and topic chronologies (for example, only the lumbar spine).

#### How long a good chronology is

Length should follow the care, not the size of the production. A few months of treatment usually fits in 2 to 3 pages. A catastrophic injury with years of surgery, rehab and follow-up can run to 50 pages. A vendor that turns a simple soft-tissue case into 30 pages has not done more work. They have buried the 5 facts that matter under 200 routine entries. Ask for the full cited timeline plus a short summary of the issues you named, and judge the summary on what it leaves out as much as what it includes.

#### What comes back, and in what format

Expect the timeline in Word, Excel or PDF, with every row cited by page or Bates number. A good delivery also includes a missing-records list (provider, date range, what is missing), a list of duplicates removed and a key-findings summary drawn from the cited rows. If the only way to read the output is inside the vendor's portal, your experts and co-counsel will struggle, and the cites may stop working when you export.

### Who actually prepares the chronology

"Medical chronology service" covers very different people doing the work. The credentials of the person reading your file matter more than the company name on the invoice.

| Reviewer | Strength | Watch for |
| --- | --- | --- |
| Paralegal | Knows the case and the legal issues. Good on organization and cites. | May miss clinical meaning: a lab value, a drug interaction, a delayed diagnosis. |
| Registered nurse (RN) | Reads clinical notes fluently, knows terminology and standard workflows. | May need direction on which legal issues the timeline must serve. |
| Legal nurse consultant (LNC) | Clinical training plus legal context. The most common reviewer in injury and claims work. | Quality varies. Ask about experience in your case type. |
| Nurse attorney (RN/JD) | Clinical and legal training in 1 person. | Higher cost. Worth it on complex liability files. |
| Physician (MD) | Best placed to read complex specialty records and causation questions. | Highest cost. Often reviews only the summary, not every row. |
| AI software | Reads every page in minutes, cites every row, does not get tired on page 1,800. | Needs a qualified person to verify before the output leaves your office. |

Ask who will read your file, not who the company employs. A vendor can list physicians on its site and still route most files to junior reviewers. And outsourcing moves the work, not the responsibility. The attorney who relies on the chronology still answers for it, so someone on your side has to check it before use.

### Why the choice matters more than it looks

Most buyers compare vendors on price and turnaround. That is the wrong place to start, because a chronology is evidence. Opposing counsel will not attack your price per page. They will go after the chronology itself, usually in 3 places.

- **Pre-existing conditions.** If the vendor skipped the years of records before the incident, the defense will find the prior back complaint you did not. See [pre-existing conditions and the eggshell plaintiff](https://medrecords.ai/guides/eggshell-plaintiff-pre-existing-conditions/).
- **Treatment gaps.** A 3-month gap with no flag reads as "the patient got better." It might be a missing record. You want to know which before the other side tells you.
- **Credibility.** A single uncited line, a wrong date or a visit from a different patient gives the other side a reason to question every row.

Be ready to explain how the chronology was built. "The vendor sent it" is not an answer that holds up at deposition. A useful habit: start from the conclusion you need to prove and work backwards, checking that each step is supported by a cited row.

#### What a bad vendor choice costs

- **Missed facts.** A missed prior injury, an unflagged delayed diagnosis or a skipped imaging report tends to surface at the worst moment: deposition, mediation or trial.
- **Rework.** Paying a second vendor, or your own nurse, to redo the file. The first invoice is now pure loss.
- **Deadline pressure.** Fixing a chronology a week before a demand or expert deadline is stressful and error-prone.
- **Credibility with your own expert.** Experts notice sloppy timelines. If they stop trusting the chronology, they read the full record themselves and bill you for it.

One UK chronology firm makes the point that a chronology which misses facts, or buries them in detail, is worse than having none at all. We agree. At Medrecords AI we treat complex records as an evidence problem, not a summarization problem. The job is to find every fact, prove where it came from, and show what is missing.

### When in a case you need a chronology

A chronology is not a single deliverable at a single moment. The same timeline does different work at each stage, which is why the cite on every row matters from day 1.

| Case stage | What the chronology does |
| --- | --- |
| Intake and evaluation | Shows whether the injuries are documented, when care started and whether a prior condition will be a problem. |
| Demand and settlement | Ties each damages item to a dated, cited record, which makes the demand harder to discount. |
| Discovery and depositions | Shows which records are missing and what to ask each provider. |
| Expert review | Gives the expert a cited map instead of a box of PDFs, which cuts their reading time and your bill. |
| Trial | Supports exhibits, cross-examination and the story you tell the jury. |

It matters most when causation is disputed: when the defense says the injury predates the incident, or the treatment was not related. It also has to stay current. New records arrive through discovery, and a chronology that was not updated is wrong by trial. Ask every vendor how they handle supplemental records and whether you pay again for pages they already processed.

### Our test: the ugliest-file trial

Vendor sample files are clean by design. They tell you how a vendor performs on easy records. Your cases are not easy. So before you sign, pick a closed case you already know well, ideally the worst file you handled this year. Send the same file to every vendor on your shortlist and score each result on 5 checks. Pay for the test if you have to. Knowing the right answer in advance is what makes the comparison fair.

| Check | How to test it | Pass looks like |
| --- | --- | --- |
| Every row is cited | Pick 10 rows at random and open the cited page. | All 10 match the page in under 10 seconds each. |
| Duplicates handled | Count how often your known duplicate visit appears. | It appears once, and the duplicate pages are listed. |
| Wrong-patient pages caught | Plant or note a page from another patient. | The page is flagged and kept out of the timeline. |
| Gaps and missing records flagged | Check the known gap and any referenced but missing report. | Both are flagged with dates and the provider to request from. |
| No opinions in the timeline | Read the findings column. | Provider wording and facts only. Interpretation sits in the summary. |

For a fuller scoring sheet, use the free [chronology bench rubric](https://medrecords.ai/content-hub/samples/chronology-bench-rubric/).

### Services, software or hybrid: the 3 delivery models

Every option on the market fits 1 of 3 models. The difference is who reads the records and who checks the result.

|  | Full-service (human) | AI software, you review | Hybrid service (AI + vendor reviewer) |
| --- | --- | --- | --- |
| Who reads the records | Nurse, LNC or physician at the vendor | The software | The software, then a vendor reviewer |
| Who verifies | The vendor | Your nurse, paralegal or attorney | The vendor, then you |
| Typical price | $0.50+ per page, or hourly | About $0.05 to $0.10 per page, or per case | Between full service and software |
| Typical turnaround | 3 to 10 business days | Minutes, plus your review time | A few days |
| Best when | You have no one who can review records | You have a reviewer and volume | You want speed but no in-house reviewer |
| Main risk | Slow, costly, quality depends on 1 person | Errors pass if nobody checks the cites | You pay twice for review if you also check |

Our view: the model matters less than whether you can check the output. A $0.50 page with no cite is worse than a $0.05 page with one, because you can verify the cheap one and you have to trust the expensive one. For a longer breakdown, see [in-house vs outsourced medical record review](https://medrecords.ai/guides/in-house-vs-outsourced-medical-record-review/).

#### How much human review is enough

AI output with no human check is fine for internal triage: deciding whether to take a case, or which records to request first. It is not fine for anything that leaves your office. A demand letter, an expert packet or a mediation brief needs at least 1 qualified person who has opened the cited pages. Manual-only review still has a place on small, unusual files, but on a 3,000-page production a tired reviewer misses things that software does not.

### US-based or offshore reviewers

Many full-service vendors use review teams outside the US, often in India or the Philippines. They compete on price and on overnight turnaround, since work can happen while your office is closed. US-based nurses usually cost more and tend to know US billing codes, workers' comp rules and state-specific claim terms better. Neither is wrong. What matters is that you know which one you are buying.

| Factor | Offshore team | US-based team |
| --- | --- | --- |
| Price | Usually lower per page or per hour | Usually higher |
| Turnaround | Overnight work is possible across time zones | Business hours, often a few days |
| US coding and claims knowledge | Varies. Ask about experience with your case type. | Usually stronger on US billing and workers' comp |
| Data residency | Check client, carrier and court rules on PHI leaving the US | Simpler to clear with most clients |
| Revisions and calls | Time-zone lag on questions and fixes | Same-day conversations |

Whichever you choose, get 3 answers in writing: whether any part of the work is subcontracted, where the files are stored, and whether data is encrypted in transit and at rest. A vendor that hesitates on subcontracting is telling you something. Use the free [HIPAA vendor intake checklist](https://medrecords.ai/content-hub/samples/hipaa-vendor-intake-checklist/) to collect the paperwork.

Software changes the question. Nobody at a software vendor reads your file page by page, so the issue becomes where the data is processed and stored, and what security audits back that up. Medrecords AI is SOC 2 and HIPAA compliant and signs a BAA before any file moves.

### What medical chronology services cost in 2026

Prices below come from vendors' own websites, collected on 14 October 2026. Vendor names are left out on purpose: prices change often, and the point is the range. Treat these as a benchmark and confirm before you buy.

| Vendor type | Published price | What it works out to |
| --- | --- | --- |
| Manual review (industry figure from a software vendor) | $500+ per 1,000 pages | $0.50+ per page |
| A US full-service vendor billing hourly | $25 per hour, about $250 per 500 pages | About $0.50 per page |
| AI chronology tools (published range) | $28 to $54 per chronology, or about $150 per month | Depends on file size |
| A pay-per-page AI tool | $0.05 per page, first 500 pages free | $0.05 per page |
| Medrecords AI Self-Service | 10¢ per deduplicated page, down to 5¢ at volume | $0.05 to $0.10 per page, duplicates not billed |

[](https://medrecords.ai/pricing/)

#### Cost by case volume

The gap between models grows with volume. The table below assumes 1,500 pages per case, a common size for a motor vehicle file with ER, orthopedic, physical therapy and pain management records.

| Monthly volume | Manual service at about $0.50 per page | Subscription AI tool (published illustration) | Medrecords AI at list price |
| --- | --- | --- | --- |
| 2 cases (3,000 pages) | About $1,500 | About $206 to $358 | Up to $300, before duplicates are removed |
| 20 cases (30,000 pages) | About $15,000 | About $860 to $1,680 | $1,500 to $3,000, depending on volume pricing |

[](https://medrecords.ai/content-hub/samples/medical-record-review-cost-calculator/)

#### The hidden cost: duplicate pages

Productions from hospitals and insurers repeat pages constantly: the same discharge summary in 3 packets, a fax cover sheet on every transmission. If a vendor bills per page before deduplication, you pay to read the same page several times. Ask in writing: "Are duplicate pages billed?" At Medrecords AI they are not. We bill per deduplicated page. More on the mechanics in [how to deduplicate medical records](https://medrecords.ai/guides/deduplicate-medical-records-for-personal-injury/).

#### The cost nobody quotes: your review time

A cheap chronology that takes your nurse 6 hours to check costs more than it looks. The cost per page is only half the bill. The other half is how long a person needs to trust the output. Cited rows cut that time the most, because checking a row means clicking it instead of hunting through 2,000 pages. See [medical record review cost](https://medrecords.ai/guides/medical-record-review-cost/) for the full math.

#### Other line items to ask about

- **File size.** Per-page pricing is cheap on a 300-page soft-tissue case and expensive on a 3,000-page workers' comp file. Flat per-case fees work the other way. Price your real case mix, not the vendor's example.
- **Rush fees.** Ask for the surcharge in writing, and ask whether the rush comes with fewer checks.
- **Revisions and supplements.** Are corrections included? When 400 new pages arrive in discovery, do you pay for those pages only or for the whole file again?
- **Add-ons.** Billing summaries, provider lists, Bates stamping and topic chronologies are sometimes priced separately.
- **Minimums and subscriptions.** Monthly minimums that look small can be expensive in a slow month.

### Turnaround: what is realistic

- **Software:** minutes. Medrecords AI processes about 100 pages a minute, so a 2,000-page file is drafted in roughly 20 minutes. Your review time comes on top.
- **Full-service vendors:** usually 3 to 10 business days. Published quotes we found ranged from a few days to about 1 week, with 5 business days a common figure.
- **Rush jobs:** most services offer them for a fee. Ask what changes in the process when they rush. If the answer is "fewer checks," you have learned something.

"Fast turnaround" on a website means nothing. Ask for a specific number of business days on a 1,000-page file and a 5,000-page file, and ask what happens to that number in the week before a holiday or when 10 other clients have deadlines.

### What to send a vendor, and what should come back

Incomplete requests are 1 of the most common reasons a chronology misses things. The vendor can only find what you send, and only focus on what you name.

#### Send

- **The full production.** All packets, as received. Do not pre-sort or remove pages you think are irrelevant; the vendor's job includes finding duplicates and stray pages.
- **A 1-page case brief.** Incident date, injuries claimed, the theory of the case and what the other side is likely to argue.
- **The date range.** Include pre-incident records. Many reviewers ask for up to 5 years before the incident, since that is where pre-existing condition arguments come from.
- **The issues to focus on.** For example: the lumbar spine only, a delayed diagnosis, or medication changes after surgery.
- **Format preferences.** Word, Excel or PDF, page or Bates cites, and whether you want a separate summary.

#### Expect back

- The cited timeline, 1 row per encounter.
- A missing-records list naming the provider, date range and what is missing, so your team knows what to request.
- A list of duplicates removed and any pages flagged as belonging to a different patient.
- Flags for treatment gaps and contradictions between providers.
- A short key-findings summary on the issues you named, with every point traced to a cited row.

### What a defensible chronology workflow looks like

Whether a person, software or both do the work, a chronology that holds up goes through the same 7 steps. Ask a vendor to walk you through each step on your test file.

1. 1 — **Intake and completeness check** — Confirm what arrived, which providers are represented and which date ranges are covered. Missing records are flagged here, not discovered at deposition.
2. 2 — **Deduplicate and Bates-number** — Remove repeated pages, list what was removed and stamp the rest so every page has a fixed reference. See [what Bates numbering is](https://medrecords.ai/guides/what-is-bates-numbering/).
3. 3 — **Read every page, including handwriting** — Scanned faxes, handwritten nursing notes and imaging reports all need to be read. See [whether AI can read handwritten records](https://medrecords.ai/guides/can-ai-read-handwritten-medical-records/).
4. 4 — **Extract events into fields** — Date, provider, visit type, diagnosis, treatment, medications, tests and findings, each tied to its page.
5. 5 — **Build the timeline and flags** — Sort by date of service, then flag gaps, contradictions, wrong-patient pages and referenced records that never arrived.
6. 6 — **Human review against the source** — A qualified person opens the cited pages, checks the flags and corrects what is wrong.
7. 7 — **Export with cites that work** — Hyperlinked PDF, Word or Excel, with cites that still open the right page outside the vendor's system.

If a vendor cannot tell you where duplicates were removed, or who checked the cites, the workflow has a hole in it. That hole will show up in your case, not theirs.

### 12 questions to ask before you sign

| Question | Good answer | Red flag |
| --- | --- | --- |
| Who reviews the work, and what are their credentials? | Named roles: RN, LNC, physician. Or a clear statement that you review. | "Our team" with no detail. |
| Does every entry cite a page? | Yes, with a page, Bates number or hyperlink. | "Key entries are cited." |
| How are duplicate pages handled and billed? | Removed, listed, and not billed. | Billed per page received. |
| Do you flag pages from other patients? | Yes, flagged and kept out of the timeline. | "That does not happen." |
| Do you flag gaps and missing records? | Yes, with dates and the provider to request from. | Gaps only, no missing-record list. |
| Is any part of the work subcontracted? | No, or named partners under the same BAA, in writing. | No clear answer. |
| Where is our data stored, and is it encrypted? | A named region, encryption in transit and at rest, and a named group of staff with access. | Vague, or offshore with no detail. |
| Will you sign a BAA? Which audits do you hold? | BAA signed before files move. Current audit reports available. | "We are HIPAA compliant" with no paperwork. |
| How many business days for a 1,000-page file? | A number, plus what changes for 5,000 pages. | "It depends," with no range. |
| What format is the export? | Hyperlinked PDF or Word, with cites that still work outside your system. | Viewable only inside their portal. |
| How do revisions and new records work? | Corrections included. New pages added to the existing chronology and billed alone. | Every change billed as a new job. |
| Will you run a test file first? | Yes, on your file. | Sample files only. |

### Common chronology errors and how to catch them

These are the errors that show up again and again in chronologies, whoever writes them. Use them as a checklist when you score a test file.

| Error | Why it hurts | What a good vendor does |
| --- | --- | --- |
| No pre-incident records | The defense finds the prior condition first. | Asks for prior years and flags earlier complaints in the same body part. |
| Incomplete record set | A missing record looks like a gap in care, or like recovery. | Produces a missing-records list with provider and date range. |
| Subjective language | "Patient was in agony" reads as advocacy and invites attack. | Quotes the provider's words and keeps comments in a separate column. |
| Sorting by print date | Events appear out of order and the story breaks. | Sorts by date of service and notes when the record was created later. |
| Imaging and labs skipped | The most objective evidence in the file is lost. | Captures every report with its findings and a cite. |
| Wrong-patient pages kept | 1 stray page can undermine the whole chronology. | Flags the page and keeps it out of the timeline. |
| Provider misattribution | A finding is credited to the wrong doctor. | Checks the signing provider on every note. |
| Duplicate visits counted | The treatment history looks longer than it was. | Deduplicates and lists what was removed. |
| Never updated | The chronology is out of date by trial. | Adds supplemental records to the existing timeline. |
| Inconsistent format | Rows are hard to scan and easy to miss. | Uses the same fields on every row and every file. |

### Beyond the timeline: features worth paying for

- **Handwriting and scan quality.** Old faxes and handwritten notes are where cheap OCR fails. Test this on your file. See [handwritten record extraction](https://medrecords.ai/product/handwritten-medical-record-extraction/).
- **Hyperlinked exports.** A cite you can click is a cite someone will actually check. See [hyperlinked exports](https://medrecords.ai/product/hyperlinked-exports/).
- **Bates stamping.** A fixed page reference that matches what was produced in discovery. See [Bates numbering and stamping](https://medrecords.ai/product/bates-numbering-stamping/).
- **Index by document type.** Labs, imaging, medications and bills grouped so you can find them without scrolling the whole timeline.
- **Issue focus.** The ability to name an injury or event and get every related entry pulled into its own view.
- **Audit trail.** A record of who changed what and when, which helps when you have to explain how the chronology was built.
- **Integrations.** Getting files in and out of your case management or document system without downloading and re-uploading PHI.

A caution: never paste client records into a general-purpose AI chat tool to "try it out." Those tools are generally not set up for PHI and do not come with a BAA on standard plans. Test with a vendor that signs one.

### Red flags

- Opinions on causation or case value written into the timeline rows.
- Summaries with no page cites, or cites only on "important" rows.
- A promise of 100% accuracy. Records are messy and no honest vendor promises that.
- Security claims you cannot verify: no BAA, no audit report, no answer on data location or subcontracting.
- Pricing that only shows the per-page rate and leaves out duplicates, rush fees and supplements.
- A chronology that reads like an argument instead of a record.
- No way to test on your own file before you commit.

### Which option fits your team

#### Solo or small plaintiff PI firm, no nurse on staff

A full-service or hybrid vendor is usually the safer call, because someone has to verify the work. If you want software instead, pair it with a freelance legal nurse consultant who checks the cited draft. See [Medrecords AI for personal injury](https://medrecords.ai/solutions/personal-injury/).

#### Firm or carrier with an in-house nurse or paralegal team

Software is the better fit. Your reviewers already know what to look for, and a cited draft lets them check instead of type. This is where per-page cost and turnaround drop the most.

#### Legal nurse consultants and record review companies

You are the service. Software that drafts the cited timeline lets you take more files without cutting checks. See [Medrecords AI for legal nurse consultants](https://medrecords.ai/solutions/legal-nurse-consultants/).

#### IME companies, defense firms, TPAs and insurers

Volume and consistency matter most. Look for deduplication, wrong-patient detection and a missing-records list on every file, plus exports your examiners can use without logging into anything.

### What no service or tool should do

Some limits apply to every option on the market.

- **Sign a medical opinion.** A chronology states what the record says. Causation, standard of care and case value belong to a qualified person.
- **Replace your review.** AI drafts fast and cites its work. A person still checks the draft and makes the call. You review, you revise, you sign.
- **Fill in records that are not there.** If a record is missing, the right output is a flag and a request list, not a guess.

Medrecords AI does not retrieve records and does not sign opinions. If you need records pulled from providers, use a retrieval service and send us the result. If you need a signed expert opinion, you need a physician.

### How to switch vendors without risk

1. 1 — **Pick 2 closed cases you know well** — Choose 1 ordinary file and 1 messy one. You already know the right answer, which makes errors easy to spot.
2. 2 — **Run both through every shortlisted vendor** — Same files, same instructions. Ask for the standard deliverable, not a special effort.
3. 3 — **Score with the 5 checks** — Use the ugliest-file table above. Cites first, then duplicates, wrong-patient pages, gaps and opinions.
4. 4 — **Time your review** — Record how long your reviewer needs to trust each output. That number tells you the real cost.
5. 5 — **Check the paperwork** — BAA, audit reports, subcontracting, data location and export format, before any live file moves.
6. 6 — **Start with live cases that have slack** — Run the new vendor on cases with no deadline this month, with your old process as a backup.
7. 7 — **Review after 30 days** — Compare error counts, review time and cost per case. Keep or switch based on the numbers.

### Example: a 342-page file

Here is what good output looks like, using the demo case we use across this site: Case #IME-4812 (Timothy Adams, right knee). The file arrived as 342 pages in 2 packets.

| What the file held | What a good chronology does with it |
| --- | --- |
| 11 duplicate pages across the 2 packets | Removes them, lists them, and does not bill for them. |
| 1 page from a different patient (p.140) | Quarantines it so it never enters the timeline. |
| 7 knee visits, starting 2 April | Lists each visit once, by date of service, with a page cite on every row. |
| Findings in different providers' words | Quotes them as written. The judgment on the knee stays with the reviewer. |

At about 100 pages a minute, a file this size is drafted in under 5 minutes. The reviewer then checks a short, cited timeline instead of reading 342 pages. See a full [Bates-stamped chronology sample](https://medrecords.ai/content-hub/samples/bates-stamped-medical-chronology-sample/).

A larger file scales the same way. A motor vehicle case with 18 months of ER, orthopedic, physical therapy and pain management records can pass 1,500 pages. Processing takes about 15 minutes. The reviewer's time goes to the flags and the cited rows on the issues in dispute, not to reading the whole production front to back.

How Medrecords AI fits
Medrecords AI is software, not a staffing service. It reads every page, including handwriting and imaging, [removes duplicates](https://medrecords.ai/product/medical-record-deduplication/), [catches wrong-patient pages](https://medrecords.ai/product/co-mingled-records-detection/), [flags missing records](https://medrecords.ai/product/missing-records-identification/) and drafts a [chronology](https://medrecords.ai/product/chronology/) where every row links to its source page. It is SOC 2 and HIPAA compliant, and we sign a BAA. AI does the reading and helps you make the call. The last word is yours.

### Bottom line

Pick a medical chronology service the way opposing counsel will read its work: line by line, looking for the uncited row, the missed gap and the page that belongs to someone else. Price and turnaround matter once a vendor passes that test. Run your worst file through every option first. The one that holds up on that file is the one to hire.

See it on your ugliest case
Bring us your ugliest case. We will run it live in a demo and show you every cite, every duplicate removed and every gap flagged. First case is free on us.

[Book a demo →](https://medrecords.ai/demo/)

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### Watch it in the app

3 short guides from our help center, recorded on a demo case. They play inside the app: sign in or create a free account, and the video opens at the chapter you picked. First case is free on us.

#### Medical chronology (2:35)

Every medical event on its date, in order, tied to the page it came from. Filter it, search it and export it as PDF or Word.

- [0:51 The event card](https://workspace.medrecords.ai/help/videos/chronology?t=51)
- [1:04 The page behind it](https://workspace.medrecords.ai/help/videos/chronology?t=64)
- [2:08 Export](https://workspace.medrecords.ai/help/videos/chronology?t=128)

#### Missing records detection (2:30)

Every record the case documents mention that the file does not contain, grouped by provider, with the page that mentions it.

- [0:32 The custodian groups](https://workspace.medrecords.ai/help/videos/missing-records?t=32)
- [0:44 Where it is mentioned](https://workspace.medrecords.ai/help/videos/missing-records?t=44)
- [1:24 Dismiss with a reason](https://workspace.medrecords.ai/help/videos/missing-records?t=84)

#### Case Q&A (2:12)

Ask a question in your own words. The answer comes back with numbered links, and each one opens the page it came from.

- [0:29 The question](https://workspace.medrecords.ai/help/videos/ask?t=29)
- [0:38 The answer with citations](https://workspace.medrecords.ai/help/videos/ask?t=38)
- [0:48 The page behind it](https://workspace.medrecords.ai/help/videos/ask?t=48)

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### Frequently asked questions

#### How much does a medical chronology service cost?

Published 2026 prices run from about $0.05 per page for AI software to $0.50 or more per page for manual review, which is $250 or more for a 500-page file. Some AI tools charge $28 to $54 per chronology or about $150 a month. Ask whether duplicate pages are billed, since they can be a large share of a production.

#### How long does a medical chronology take?

Software drafts a chronology in minutes. At about 100 pages a minute, a 2,000-page file takes roughly 20 minutes before human review. Full-service vendors usually quote 3 to 10 business days, and some offer rush delivery. The verification step is what takes real time, so ask how long review adds.

#### Who prepares a medical chronology?

Paralegals, registered nurses, legal nurse consultants, nurse attorneys and physicians all prepare medical chronologies, and AI software now drafts many of them. Nurses and legal nurse consultants are the most common reviewers for injury and claims work. Whoever drafts it, the attorney who relies on the chronology is still responsible for checking it before use.

#### How long should a medical chronology be?

A medical chronology should be as long as the care it covers and no longer. A few months of treatment usually fits in 2 to 3 pages. A catastrophic injury with years of care can run to 50 pages. Padding with routine entries buries the facts that matter, so a good chronology cites everything and summarizes only what is relevant.

#### Is AI accurate enough for a medical chronology?

AI is accurate enough to draft a chronology when every entry links to the page it came from, so a person can check it in seconds. It is not a substitute for that check. Most vendors now recommend a human in the loop, and the defensible setup is AI drafting with a qualified reviewer verifying and signing.

#### Should I use a medical chronology service or software?

Use a full service when no one on your team can review medical records and you need a finished work product. Use software when you have a nurse, paralegal or attorney who can verify a cited draft, since it is faster and costs less per page. Many firms run both and pick per case.

#### What should a medical chronology include?

A medical chronology should include 1 row per encounter with the date of service, provider and facility, visit type, diagnosis, treatment, medications, tests, findings in the provider's own words, and a source page cite. It should also list duplicates removed, gaps in treatment, contradictions between providers, wrong-patient pages, and records that are referenced but missing.

#### What questions should I ask a medical chronology vendor?

Ask who reviews the work and what credentials they hold, whether every entry cites a page, how duplicates and wrong-patient pages are handled, whether missing records are flagged, whether any work is subcontracted, where data is stored, whether they sign a BAA, how many business days a 1,000-page file takes, and whether they will run a test file first.

#### Are offshore medical chronology services safe to use?

Offshore services can be safe if they sign a BAA, hold current security audits and keep data in a region your clients accept. The risks are reviewer credentials you cannot verify, data residency rules in your contracts, and time-zone delays on revisions. Ask where the files are stored and who opens them.

#### Can a medical chronology service retrieve the records too?

Some services retrieve records and some do not, so ask before you sign. Medrecords AI does not retrieve records. It works on the files you already have, flags records that are referenced but missing, and gives you a list of what to request from each provider.

### Related reading

[13 best medical chronology services (2026) →](https://medrecords.ai/best/medical-chronology-services/) [Medical chronology and summary services →](https://medrecords.ai/solutions/chronologies-and-summaries/) [AI medical chronology software →](https://medrecords.ai/product/chronology/) [Is an AI medical chronology defensible in court? →](https://medrecords.ai/guides/is-ai-accurate-enough-for-court/) [Verified chronologies from scanned records →](https://medrecords.ai/guides/verified-medical-chronology-from-scanned-records/) [Medical record review cost →](https://medrecords.ai/guides/medical-record-review-cost/)

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### Ranked lists