Mark Welch, MD
NPI 1336175215 · Diagnostic Radiology Physician · Williamsville, NY
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Welch, MD is a Diagnostic Radiology Physician provider in Williamsville, NY (NPI 1336175215).
Provider details
- NPI number
- 1336175215
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- D0082346 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
5,215 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 706 | $8 |
| Ct Scan Head Or Brain Without Contrast70450 | 322 | $37 |
| X-Ray of Chest, 2 Views71046 | 313 | $10 |
| Dxa Bone Density Measurement of Hip, Pelvis, Spine77080 | 224 | $9 |
| Screening Mammography77067 | 190 | $34 |
| Ct Scan of Blood Vessels of Chest With Contrast71275 | 153 | $81 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-23
- Last updated
- 2023-08-21
- Certified
- 2023-08-21
Frequently asked questions
- What is Mark Welch's NPI number?
- Mark Welch's National Provider Identifier (NPI) is 1336175215, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Welch's specialty?
- Mark Welch is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Welch located?
- Mark Welch's practice location on file with NPPES is 111 N Maplemere Rd Ste 120, Williamsville, NY 14221-3178.
- What is Mark Welch's phone number?
- The practice phone number listed in the NPPES registry for Mark Welch is (716) 836-4646.
- Does Mark Welch accept Medicare?
- Mark Welch is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Welch's NPI active?
- Yes — Mark Welch's NPI (1336175215) is active in the NPPES registry as of the last update on 2023-08-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.