Gerald Wertheim, MD
NPI 1235296187 · Clinical Pathology/Laboratory Medicine Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gerald Wertheim, MD is a Clinical Pathology/Laboratory Medicine Physician provider in Philadelphia, PA (NPI 1235296187).
Provider details
- NPI number
- 1235296187
- Entity type
- Individual
- Primary specialty
- Clinical Pathology/Laboratory Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD436931 (PA)
Specialties & taxonomies
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
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
63 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) |
|---|---|---|
| Surgical Pathology Consultation and Report on Referred Slides Prepared Elsewhere88321 | 40 | $83 |
| Flow Cytometry Technique for Dna Or Cell Analysis, 2 to 8 Markers88187 | 23 | $35 |
Typical Medicare-allowed amounts for these services range $35–$83 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-02
- Last updated
- 2019-10-24
Frequently asked questions
- What is Gerald Wertheim's NPI number?
- Gerald Wertheim's National Provider Identifier (NPI) is 1235296187, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gerald Wertheim's specialty?
- Gerald Wertheim is listed in the NPPES registry with a primary specialty of Clinical Pathology/Laboratory Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gerald Wertheim located?
- Gerald Wertheim's practice location on file with NPPES is 3400 Spruce Street, Philadelphia, PA 19104.
- What is Gerald Wertheim's phone number?
- The practice phone number listed in the NPPES registry for Gerald Wertheim is (215) 662-6503.
- Does Gerald Wertheim accept Medicare?
- Gerald Wertheim is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gerald Wertheim's NPI active?
- Yes — Gerald Wertheim's NPI (1235296187) is active in the NPPES registry as of the last update on 2019-10-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.