Mark J. Welch, MD
NPI 1336175215ActiveIndividual· Radiology, Diagnostic Radiology· Williamsville, NY
Radiology, Diagnostic Radiology (MD) in Williamsville, New York, trained at Hahnemann University College of Medicine (class of 1992). Medicare paid $160,954 for services to 3,072 patients in 2024. Siemens Medical Solutions USA, Inc. reported $19.65 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1336175215 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 23, 2006 |
| Last updated in NPPES | Aug 21, 2023 |
| Certified by provider | Aug 21, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Diagnostic Radiology Primary | 2085R0202X | 221305-1 | NY |
| Radiology, Diagnostic Radiology | 2085R0202X | D0082346 | MD |
| Radiology, Diagnostic Radiology | 2085R0202X | MD18504 | ME |
| Radiology, Diagnostic Radiology | 2085R0202X | MD057975L | PA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Diagnostic Radiology (NY); Practitioner - Diagnostic Radiology (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 3,072 |
|---|---|
| Services billed | 6,219 across 222 procedure codes |
| Paid by Medicare | $160,954 |
Education and affiliations
| Medical school | Hahnemann University College of Medicine |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Diagnostic Radiology |
Medical groups
- General Physician PCAmherst, NY · 501 clinicians
- Kaleida HealthBuffalo, NY · 236 clinicians
- Olean Medical Practice PLLCOlean, NY · 51 clinicians
- Great Lakes Medical Imaging LLCWilliamsville, NY · 42 clinicians
- Western New York Radiology Associates LLCBuffalo, NY · 27 clinicians
- Bradford Radiology PCBradford, PA · 21 clinicians
Hospital affiliations
- Erie County Medical CenterBuffalo, NY
- Jones Memorial HospitalWellsville, NY
- Kaleida HealthBuffalo, NY
- Olean General HospitalOlean, NY
- Upmc ColeCoudersport, PA
Industry payments (Open Payments)
- 2025$19.65 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Siemens Medical Solutions USA, Inc. | $19.65 | 1 |
What the 2025 payments were for
- Food and Beverage$19.65 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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