Stephen Peiper, MD
NPI 1184724080 · Anatomic Pathology Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Peiper, MD is a Anatomic Pathology Physician provider in Philadelphia, PA (NPI 1184724080).
Provider details
- NPI number
- 1184724080
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 051529 (GA)
Specialties & taxonomies
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
19 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
4,952 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) |
|---|---|---|
| Molecular Pathology Procedure; Physician Interpretation and ReportG0452 | 1,403 | $46 |
| Protein Measurement, Serum84165 | 1,187 | $18 |
| Microscopic Genetic Analysis of Tissue, Manual, Each Additional Multiplex Stain Procedure88377 | 1,139 | $62 |
| Immunologic Analysis Technique on Serum (immunofixation)86334 | 715 | $18 |
| Interpretation and Report of Genetic Testing88291 | 199 | $34 |
| Protein Measurement, Body Fluid84166 | 175 | $18 |
| Immunologic Analysis Technique on Body Fluid, Other Fluids With Concentration |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-22
- Last updated
- 2023-11-29
Frequently asked questions
- What is Stephen Peiper's NPI number?
- Stephen Peiper's National Provider Identifier (NPI) is 1184724080, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Peiper's specialty?
- Stephen Peiper is listed in the NPPES registry with a primary specialty of Anatomic Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Peiper located?
- Stephen Peiper's practice location on file with NPPES is 132 S 10th St, Philadelphia, PA 19107-5244.
- What is Stephen Peiper's phone number?
- The practice phone number listed in the NPPES registry for Stephen Peiper is (215) 503-5642.
- Does Stephen Peiper accept Medicare?
- Stephen Peiper is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Peiper's NPI active?
- Yes — Stephen Peiper's NPI (1184724080) is active in the NPPES registry as of the last update on 2023-11-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.