Mark Sellmyer, M.D.,P.H.D.
NPI 1932475381 · Nuclear Radiology Physician · Philadelphia, PA
Provider details
- NPI number
- 1932475381
- Entity type
- Individual
- Primary specialty
- Nuclear Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.,P.H.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD452997 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 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
524 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) |
|---|---|---|
| Nuclear Medicine Study From Skull Base to Mid-Thigh With Ct Scan78815 | 201 | $113 |
| Nuclear Medicine Study From Skull Base to Mid-Thigh With Ct Scan78815 | 198 | $312 |
| Nuclear Medicine Study Whole Body With Ct Scan78816 | 35 | $114 |
| Fluorodeoxyglucose F-18 Fdg, Diagnostic, Per Study Dose, Up to 45 MillicuriesA9552 | 27 | $116 |
| Nuclear Medicine Study Whole Body With Ct Scan78816 | 26 | $176 |
| Nuclear Medicine Study of Bone And/Or Joint Whole Body78306 | 22 | $39 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-03-30
- Last updated
- 2018-05-29
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.