Last updated: 2026-08-24
Honest Taskers, Health Information Associates, and AGS Health lead this year's shortlist of clinical chart auditor companies, seven firms ranked on how they audit charts for coding accuracy and compliance, from sampling a provider's encounters and scoring them against the documentation to producing an error rate you can defend, quantifying refund exposure, and educating the clinicians whose notes caused the findings. The choice that matters here is between a retrospective audit that tells you what went wrong and a pre-bill review that stops it going out.
Disclosure: Honest Taskers publishes this list and appears at position 1. We're judged on the same five published criteria as every other company here.
At a glance
- 1Honest Taskers
- 2Health Information Associates
- 3AGS Health
- 4Plutus Health
- 5MRO
- 6Transcure
- 7Waystar
How we chose the best clinical chart auditor companies
We ranked these firms on five facts, each read at the provider's own website in August 2026. Those facts are what audit work is performed, what credentials or certifications are stated, published pricing, the purchase model, and named compliance. Credentials matter more here than in almost any category on our site, because a chart audit finding is only as strong as the person who made it. If an auditor says a level four visit should have been a level three, that opinion has to survive a payer disagreeing, and the credential behind it is the first thing anyone will ask about. Two firms here reference AAPC certification and one publishes years of experience instead. Several name nothing. Blank facts read "not publicly listed" instead of a guess.
Best clinical chart auditor companies compared
The table ranks all 7 on the same columns, Honest Taskers first because we publish the list. Facts were read August 2026 and change often, so treat them as a starting point, not a quote.
| Company | Audit work covered | Credential or certification stated | Published pricing | Purchase model | Compliance named |
|---|---|---|---|---|---|
| Honest Taskers | Audit sample pulling, chart assembly, findings logging, education tracking, refund and correction workflow support | None claimed for auditing; pool includes licensed nurses and physicians | $10.00–$12.65/hr | Staffing by the hour | Compliance officer; HIPAA compliance verified by Accountable; BAA when PHI is accessed |
| Health Information Associates | Compliance and financial audits, acute coding review and CDI, inpatient and outpatient coding review, profee and ambulatory surgery review, coding education | 10 years average coder experience; 25 years average consultant experience; 200+ courses, 250 annual CEUs accepted by AHIMA | Not publicly listed | Audit and consulting | Not publicly listed |
| AGS Health | Coding review, CDI, denials analysis, claims and AR, prior authorization, provider enrollment | "Cybersecurity Transparent Designation 2023"; no coder credential named | Not publicly listed | Outsourced service | Named designation only; no SOC 2, ISO or HITRUST |
| Plutus Health | Medical coding audit, DRG validation, inpatient coding, HCC coding, denial management | AAPC-certified audits referenced; 99.2% coding accuracy threshold | Not publicly listed | Outsourced service plus AI agents | HIPAA; SOC 2 Type II |
| MRO | Data abstraction and quality, revenue integrity, Prodigy AI abstraction, registry management, ROI | Not publicly listed | Not publicly listed | Outsourced service plus AI abstraction | HITRUST CSF certified, SOC 2, NCQA Validated Data Aggregator, BAA |
| Transcure | Coding audits inside whole-service RCM, plus billing, eligibility, MIPS, credentialing | AAPC-certified billers and coders (company-reported) | 3% to 5% of monthly collections | Percentage of collections | ISO 27001 (company-reported) |
| Waystar | Prebill anomaly detection, DRG anomaly detection, charge integrity, clinical documentation integrity, utilization management | Not applicable; software | Not publicly listed | Software license | HIPAA, SOC 2, HITRUST, PCI-DSS |
Three firms name a coding audit or compliance audit as a separate service, and two of those reference AAPC certification behind it. The bottom entry is the one worth thinking hardest about: prebill and diagnosis related grouping anomaly detection catch the problem before the claim is submitted, which converts an audit finding into a correction rather than a refund. Retrospective auditing tells you what you owe back. Prebill review means you never owed it.
1. Honest Taskers
Best for: practices running audits internally that need the preparation and follow-through work handled.
Pricing: $10.00–$12.65/hrLocation: US clients; PH, LatAm, India and Pakistan recruitingModel: Staffing by the hourFirst hire: Two-week working trial
An audit program fails on logistics more often than on judgement. Pulling the sample takes hours. Assembling the charts, encounter notes, orders, and remittance data for each one takes longer. Then the findings need logging in a form that produces a defensible error rate, the affected claims need correcting or refunding, and the education needs scheduling and tracking so the same finding does not appear next quarter. Honest Taskers places staff who work inside your systems on all of that: pulling audit samples to your specification, assembling complete charts for review, logging findings into your tracker, maintaining the corrective action and refund workflow, and tracking which clinicians have completed which education. Your auditor spends the time auditing. Staff are trained on HIPAA and data privacy under a dedicated compliance officer, work in your time zone, and a Business Associate Agreement is signed before anyone touches protected health information, with HIPAA compliance verified by Accountable. Rates run about $10 to $12.65 an hour by role, background, schedule, and location, with a two-week working trial on the first hire and 99.6% average monthly retention reported. See the remote clinical chart auditor service for role detail.
Limitation: the firm claims no AAPC or AHIMA credential, so the audit judgement itself, scoring a chart and determining a code was wrong, stays with your certified auditors or one of the firms below.
2. Health Information Associates
Best for: organizations that want a dedicated audit and coding review firm rather than an audit bundled into billing.
Pricing: Not publicly listedLocation: South CarolinaModel: Audit, CDI and outsourced codingExperience: 10 yrs average coder
Health Information Associates is the closest thing on this list to a pure audit house, and that focus is the reason it ranks second. It names compliance and financial audits as separate services, alongside acute coding review and clinical documentation improvement, inpatient and outpatient coding review, professional fee solutions, ambulatory surgery coding and review, denial management, and total outsource coding support. Its settings list is unusually broad and specific: hospitals, physician groups, ambulatory surgery centers, behavioral health facilities, critical access hospitals, federally qualified health centers, pediatric hospitals, rehabilitation centers, rural health clinics, and urgent care centers. The education arm matters for audit programs, with over 200 facility and professional fee courses and 250 annual continuing education units accepted by AHIMA and some by AAPC, because an audit without education just produces the same findings next year. It states 10 years average coder experience and 25 years average consultant experience, from South Carolina.
Limitation: it names no individual coding credentials such as CCS, CDIP, or CPC, publishes no pricing, and states no HIPAA, SOC 2, or Business Associate Agreement position on the page, all of which need settling directly.
3. AGS Health
Best for: health systems that want audit findings connected to the documentation improvement that fixes them.
Pricing: Not publicly listedLocation: HQ Washington DC; delivery ChennaiModel: Outsourced serviceClients: Banner Health, Baylor Scott & White
AGS Health pairs coding review with clinical documentation improvement, and on inpatient work that pairing is the difference between an audit and a fix. A finding that a diagnosis was not documented to the specificity the code required is not a coding error to correct, it is a documentation problem to address at the bedside, and a firm holding both sides can do that. Its wider scope covers claims, accounts receivable, denials, prior authorization, and provider enrollment and credentialing, and its named clients include Banner Health and Baylor Scott & White. It operates from Washington DC with a delivery center in Chennai, India.
Limitation: it names no coder credentials and only a Cybersecurity Transparent Designation from 2023, publishes no pricing, and is built for health systems rather than practices.
4. Plutus Health
Best for: practices and groups wanting a coding audit with AAPC certification behind it and a stated accuracy threshold.
Pricing: Not publicly listedLocation: Dallas TX; three delivery centersModel: Outsourced service plus AI agentsCompliance: SOC 2 Type II
Plutus Health names medical coding audit as a service and references AAPC-certified audits against a 99.2% coding accuracy threshold, which is the most concrete credential-plus-standard combination on this list. Alongside it sit diagnosis related grouping validation, inpatient coding, HCC coding, and denial management, so an audit can extend into the two areas where audit exposure concentrates: inpatient severity capture and risk adjustment. It reports serving more than 9,000 providers across 40 or more US states, $1.7 billion in annual claims, 1,600 agents and 25 artificial intelligence agents in production, from a Dallas headquarters with three global delivery centers, and states HIPAA compliance and SOC 2 Type II.
Limitation: individual auditor credentials are not listed, no pricing is published, and the delivery center locations are not named, so establish who performs your audit and where.
5. MRO
Best for: organizations whose audit question is data accuracy and abstraction quality rather than code selection.
Pricing: Not publicly listedLocation: Not publicly listedModel: Outsourced service plus AI abstractionCompliance: HITRUST CSF, SOC 2
MRO approaches this from the data side, which is a different and legitimate reading of chart audit. Its data abstraction and quality service, formerly Q-Centrix, plus its Prodigy artificial intelligence abstraction engine, revenue integrity work, and registry management, are all about whether what was pulled from the chart is accurate, which is the underlying question in quality reporting and registry submission as well as billing. Its reported figures are the most specific here: 99% or better accuracy, 60% data element coverage at 97% or better accuracy for Prodigy, 18% higher accuracy than other artificial intelligence solutions, 98% or better partner retention, and twelve KLAS wins. Compliance is HITRUST CSF certified, SOC 2, and NCQA Validated Data Aggregator, with Business Associate Agreement capability.
Limitation: it is not a coding compliance auditor, so evaluation and management level disputes and coding error rates are outside its scope, and it publishes no pricing or staff credentials.
6. Transcure
Best for: practices that want audits included in a revenue cycle engagement rather than bought separately.
Pricing: 3% to 5% of monthly collectionsLocation: Texas, New Jersey, FloridaModel: Percentage of collectionsScale: 1,100+ certified billers and coders
Transcure names audits within its whole revenue cycle work, priced at 3% to 5% of monthly collections for the whole engagement, which means the audit is effectively bundled rather than billed. There is a real advantage to that on continuous quality: an internal audit function that runs every month costs nothing extra and catches drift early. It states more than 1,100 certified billers and coders and AAPC certification, both company-reported, with offices in Texas, New Jersey, and Florida and coverage across more than 40 specialties. ISO 27001 is stated.
Limitation: an audit performed by the firm doing your coding is not independent, which is exactly what a compliance audit is supposed to be, so use it for quality control rather than as your compliance audit of record.
7. Waystar
Best for: organizations that would rather prevent audit findings than measure them.
Pricing: Not publicly listedLocation: Not publicly listedModel: Software platformCompliance: HIPAA, SOC 2, HITRUST, PCI-DSS
Waystar is the prevention entry and it belongs at the end of this list as a genuine alternative to the whole premise. Prebill anomaly detection, diagnosis related grouping anomaly detection, charge integrity, clinical documentation integrity, and utilization management all operate before the claim goes out, which means a coding problem becomes a correction rather than a refund with interest. For any organization carrying real audit exposure, that sequencing is worth more than a faster retrospective audit. It reports more than a million providers and 60% of the US patient population across settings from practices and ambulatory surgery centers to health systems, and holds HIPAA, SOC 2, HITRUST, and PCI-DSS compliance.
Limitation: it is software, so it flags anomalies rather than determining whether a code was correct, and you still need certified people to make that call and a compliance audit program to document it.
Should chart audits be run in-house, outsourced, or replaced with pre-bill review?
Do pre-bill review if you can, because it is the only option that prevents the liability rather than measuring it. Catching a problem before submission costs a correction; catching it two years later costs a refund, interest, and possibly an extrapolated finding across a population. Outsource the compliance audit itself, because independence is the point: an audit performed by the people who did the coding cannot serve as your compliance audit of record, however competent they are. Look for AAPC or AHIMA credentials on the individual auditor, not the firm. Staff the surrounding work in-house, since sample pulling, chart assembly, findings logging, refund workflow, and education tracking are administrative and consume most of the hours: a medical records specialist earned about $51,140 a year, roughly $24.59 an hour before benefits, according to the U.S. Bureau of Labor Statistics May 2025 wage data for medical records specialists, against roughly $10 to $13 an hour for placed remote staff. And run continuous internal quality checks alongside the formal audit, because an annual audit tells you about last year while monthly sampling tells you about now. For the administrative scope, see tasks to outsource to a virtual medical assistant.
What are the risks of outsourcing chart audits?
An audit creates knowledge, and knowledge of an overpayment creates an obligation, so the process needs thinking through before it starts.
- Findings create refund obligations. Identified overpayments generally have to be returned within a defined period. Involve counsel before a broad retrospective audit.
- Independence. Do not use the firm doing your coding as your compliance auditor of record.
- Auditor credentials, by person. Ask for the credential of the individual reviewing your charts, since a finding has to survive a payer challenge.
- Sample methodology. Ask how the sample is drawn and whether findings can be extrapolated, because a badly drawn sample produces an indefensible error rate.
- Education attached. An audit without clinician education repeats itself. Confirm education is included or planned separately.
How are chart audits priced?
Two published rates and five quotes. Percentage of collections: Transcure at 3% to 5% of monthly collections, with audits bundled into the engagement. Hourly: Honest Taskers at $10.00 to $12.65 depending on role, background, schedule, and location, for the administrative work around the audit. Health Information Associates, AGS Health, Plutus Health, MRO, and Waystar are quote-only, and compliance audits in this market are commonly priced per chart or per provider for a fixed sample size, though none of these firms publishes a figure. Ask for cost per chart at your intended sample size, then ask separately what education costs, because those are often quoted together and delivered apart. Also ask what a rebuttal costs: when you disagree with a finding, somebody has to work through it, and that time is rarely in the original quote. Rates were checked August 2026 and change often. For staffing rate context, see how much a virtual medical assistant costs in 2026.
What should you look for in a chart audit partner?
Credentials on the individual, independence, methodology, and education.
- Named credential per auditor. AAPC or AHIMA certification on the person reviewing your charts, in writing.
- Independence from your coding. Your compliance audit should not be performed by your coding vendor.
- A documented sample method. Ask how charts are selected and whether findings are extrapolated.
- A rebuttal process. Establish how disagreements are worked through, and what that costs.
- Education included. Findings without teaching recur. Confirm what is included.
How do you set up a chart audit program?
Start narrow and with advice, because a broad retrospective audit creates obligations before it creates value.
- Decide the scope with counsel first, starting with the look-back period.
- Run a small baseline sample per provider, ten to twenty charts, to size the problem before committing.
- Shortlist auditors on individual credentials and independence from your coding vendor.
- Staff the sample pulling, chart assembly, and findings logging so your auditor only audits.
- Attach education to every finding, then re-sample the same providers after two quarters and compare error rates.
For the hiring route on the administrative side, read how to hire a virtual medical assistant.
Methodology and sources
We read each company's own website in August 2026, recording what audit work is performed, what credentials or certifications are stated, published pricing, purchase model, and named compliance. Wage context is from the U.S. Bureau of Labor Statistics May 2025 Occupational Employment and Wage Statistics for medical records specialists. Overpayment return obligations are established under federal law and Centers for Medicare and Medicaid Services rules, and coding credentials referenced are administered by AAPC and AHIMA. Nothing here is legal advice. Where a company didn't publish a fact, we marked it "not publicly listed"; accuracy figures are labeled company-reported and were not independently audited.
Related coding compliance guides
If your audit program keeps stalling on preparation rather than judgement, the fix is delegating the sample and chart assembly work. Our explainer on what a virtual medical assistant is covers what a remote hire can own around an audit, and why the scoring judgement has to stay with credentialed staff.
Speak with Honest Taskers about supporting your audit program.