Quick answers
- Which hospitals does Mark J. Welch work at?
- Medicare's official clinician data lists Mark J. Welch at 5 hospitals: Erie County Medical Center, Jones Memorial Hospital, Kaleida Health, Olean General Hospital and UPMC Cole. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark J. Welch see patients?
- Medicare's clinician data lists 7 practice locations, including Buffalo, NY, Bradford, PA and Cheektowaga, NY. Call before your visit to confirm the address.
- What is Mark J. Welch's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does Mark J. Welch accept Medicare assignment?
- Yes. Medicare's clinician data says Mark J. Welch accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Mark J. Welch?
- (716) 332-8078, as listed in official Medicare / NPI Registry data.
- What is Mark J. Welch's NPI number?
- 1336175215. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark J. Welch works
Medicare's Facility Affiliation Data lists Mark J. Welch at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Erie County Medical CenterBuffalo, NY · Acute Care Hospital · CCN 330219
- Jones Memorial HospitalWellsville, NY · Acute Care Hospital · CCN 330096
- Kaleida HealthBuffalo, NY · Acute Care Hospital · CCN 330005
- Olean General HospitalOlean, NY · Acute Care Hospital · CCN 330103
- UPMC ColeCoudersport, PA · Critical Access Hospital · CCN 391313
Practice locations
Addresses where Mark J. Welch is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.
- 100 High StBuffalo, NY 14203 (716) 332‑8078
- 116 Interstate PkwyBradford, PA 16701 (814) 368‑4143
- 3085 Harlem Rd, Suite 150Cheektowaga, NY 14225 (716) 844‑5300
- 3850 Saunders Settlement RdSanborn, NY 14132 (716) 898‑2840
- 515 Main StOlean, NY 14760 (716) 373‑2600
Group practices
Medicare enrollment lists Mark J. Welch as a member of these groups (CMS data updated 2026-10-02).
- General Physician PC501 clinicians in the group
- Kaleida Health236 clinicians in the group
- Olean Medical Practice PLLC51 clinicians in the group
- Great Lakes Medical Imaging LLC42 clinicians in the group
- Western New York Radiology Associates LLC27 clinicians in the group
- Bradford Radiology PC21 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Buffalo
Clinicians with the same Medicare primary specialty in Buffalo, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Hahnemann University College Of Medicine |
| Graduation year | 1992 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1336175215 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians