John W. Mah, M.D.
NPI 1316040272ActiveIndividual· Surgery· Hartford, CT
Surgery (M.D.) in Hartford, Connecticut, trained at Sanford School of Medicine of University of South Dakota (class of 1998). Medicare paid $11,200 for services to 32 patients in 2024.
Overview
| NPI | 1316040272 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 6, 2006 |
| Last updated in NPPES | Feb 25, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | 041522 | CT |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - General Surgery (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 32 |
|---|---|
| Services billed | 70 across 4 procedure codes |
| Paid by Medicare | $11,200 |
Education and affiliations
| Medical school | Sanford School of Medicine of University of South Dakota |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | General Surgery |
| Secondary specialties | Critical Care (Intensivists) |
Medical group
- Hartford HospitalHartford, CT · 1,044 clinicians
Hospital affiliation
- Hartford HospitalHartford, CT
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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