Zhen Yan, MD, PHD
NPI 1629368048 · Anatomic Pathology Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zhen Yan, MD, PHD is a Anatomic Pathology Physician provider in San Francisco, CA (NPI 1629368048).
Provider details
- NPI number
- 1629368048
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Male
- Sole proprietor
- No
- License
- A127572 (CA)
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
15 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
6,237 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) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 3,824 | $38 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 1,251 | $77 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 426 | $29 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 176 | $36 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 100 | $100 |
| Special Stained Specimen Slides to Identify Organisms Including Interpretation and Report88312 | 88 | $27 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-04-19
- Last updated
- 2018-02-02
Frequently asked questions
- What is Zhen Yan's NPI number?
- Zhen Yan's National Provider Identifier (NPI) is 1629368048, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zhen Yan's specialty?
- Zhen Yan is listed in the NPPES registry with a primary specialty of Anatomic Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Zhen Yan located?
- Zhen Yan's practice location on file with NPPES is 505 Parnassus Ave, San Francisco, CA 94143-2204.
- What is Zhen Yan's phone number?
- The practice phone number listed in the NPPES registry for Zhen Yan is (415) 443-7995.
- Does Zhen Yan accept Medicare?
- Zhen Yan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Zhen Yan's NPI active?
- Yes — Zhen Yan's NPI (1629368048) is active in the NPPES registry as of the last update on 2018-02-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.