MDaudit vs SmarterDx (2026)
Both sell pre bill revenue integrity to hospitals and health systems, built from different foundations. SmarterDx starts from the clinical record: one model layer reads about 30,000 data points a chart, across notes, labs, vitals, orders, imaging and codes, to surface missed diagnoses and charges for the hospital's teams to validate, and its products extend into authorizations, utilization, denials and underpayments. MDaudit starts from audit workflow: compliance teams schedule risk based and coding quality audits, manage payer audits, and use eValuator to review every encounter between coding and billing with a rules engine its coding specialists maintain. Their incentives point in different directions. SmarterDx is sold on net new revenue, $3.5 million per 10,000 DRG discharges on its own calculator, with fees tied to the value it delivers, and each finding it surfaces adds a diagnosis or a charge. MDaudit sells to compliance leaders as much as to revenue teams, and its audits cover billing risk as well as missed revenue. Both keep people in the decision, and neither lists a price. MDaudit holds HITRUST r2 and ai1 certifications with a trust center, while SmarterDx shows SOC 2 and TX-RAMP badges without one.
- Combines internal audits, payer audit management, denial analytics and pre bill review in one platform.
- Audits physicians and coders as well as hospital encounters, with a rebuttal process for coders.
- Auditor Assist proposes coding assessments and leaves the decision with the auditor.
- HITRUST r2 and HITRUST ai1 certifications, with a trust center and a named subprocessor list.
- Reads the full inpatient record, about 30,000 data points a chart, to surface missed diagnoses and charges.
- Seven products span authorizations, utilization, notes, pre bill review, charges, denials and underpayments.
- Reports more than 85 health systems and 300 hospital sites, naming Novant Health, UCHealth and OHSU.
- Fees tied to the value delivered, with a public calculator that sizes the expected return.
This comparison is published by AI Health Index, an independent research platform that compares healthcare AI vendors objectively. MDaudit and SmarterDx are each graded against the same capability taxonomy, from each vendor's own public materials and the regulatory record, under the AI Health Index verification standard. No vendor pays for placement, and no vendor has reviewed this page. How this evidence is graded
Plain facts
| Fact | MDaudit | SmarterDx |
|---|---|---|
| Primary category | RCM & Prior Auth AI | RCM & Prior Auth AI |
| Founded | Not recorded | 2020 |
| Headquarters | Wellesley, Massachusetts, United States | New York, New York, United States |
| Website | mdaudit.com | smarterdx.com |
Side by Side
Select any grade to read the note behind it.
Each vendor in one paragraph
Written to be quoted whole. Each paragraph states what the AI Health Index verified about the vendor, with the caveats attached.
MDaudit runs billing compliance and revenue integrity for health systems, physician networks, hospitals and ambulatory surgery centers. Compliance teams audit physicians, hospitals and coders in one workflow and manage RAC, TPE and CERT requests, eValuator reviews encounters between coding and billing, and Auditor Assist, launched in July 2026, proposes coding assessments for an auditor to decide. MDaudit holds HITRUST r2 and ai1 certifications and is sold by module.
Source: AI Health Index, September 2026
SmarterDx sells clinical AI for hospital revenue integrity. One model layer, trained on more than 21 million encounters, reads the full inpatient record and surfaces missed diagnoses, charges and denial causes for the hospital's teams to validate, across seven products from authorizations to underpayments. It reports more than 85 health systems and 300 hospital sites, ties its fees to the value it delivers, runs on AWS and is backed by New Mountain Capital.
Source: AI Health Index, September 2026
Questions buyers ask
How do MDaudit and SmarterDx approach pre bill review?
SmarterDx reads the complete inpatient record to surface missed diagnoses and charges for the hospital's teams to validate before final billing. MDaudit's eValuator reviews every encounter between coding and billing with a rules engine that learns from encounter and audit data, with rules written by its coding specialists. From the AI Health Index, drawn from each vendor's own published materials and the regulatory record, verified September 28, 2026. No vendor pays for placement.
Does either vendor submit claims itself?
No. SmarterDx surfaces findings for the customer's documentation and coding teams to validate, and MDaudit's Auditor Assist proposes assessments for the auditor to decide. From the AI Health Index, drawn from each vendor's own published materials and the regulatory record, verified September 28, 2026. No vendor pays for placement.
How do MDaudit and SmarterDx document security?
MDaudit holds HITRUST r2 and ai1 certifications, a SOC 2 report and TX-RAMP Level 2, with documents through its trust center on request, and lists AWS, Okta, Vanta and HITRUST MyCSF as subprocessors. SmarterDx shows SOC 2 and TX-RAMP badges and runs on AWS, without a trust center. From the AI Health Index, drawn from each vendor's own published materials and the regulatory record, verified September 28, 2026. No vendor pays for placement.
Related comparisons
Other published head to head assessments involving these vendors or their closest peers. The full set for this category is on the RCM & Prior Auth AI page.
Neither lists a price, and both run on AWS. Return and revenue figures on both sides are the vendors' own, built on what each says its customers would otherwise have missed.