Physician Profile
Unclaimed ProfileAbout YAN
Based in San Francisco, CA, Zhen Yan, MD, PhD is listed in the NPI registry under pathology. According to Medicare claims data, Zhen cared for 2,543 Medicare patients across 6,237 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What kind of doctor is Dr. Yan?
Dr. Yan is a pathology in San Francisco, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “PATHOLOGY”.
NPI registry
What is Dr. Yan's address?
Dr. Yan is listed at 505 PARNASSUS AVE, San Francisco, CA 94143. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Yan?
The number on file is (415) 443-7995. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Yan's NPI number?
Dr. Yan's National Provider Identifier is 1629368048. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Yan train?
Dr. Yan attended Other, graduating in 1996. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Yan been practicing?
Dr. Yan has 30 years experience. Calculated from a graduation year of 1996, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Yan perform?
According to Medicare billing data, Dr. Yan the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Yan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Yan. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (415) 443-7995
- Email not available
Practice Locations
505 PARNASSUS AVE
San Francisco, CA 94143
Procedures Most Often Billed to Medicare
6,237 services · 2,543 patients · 18 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Pathology examination of tissue using a microscope, intermediate complexity | Lab test | 88305 |
3,824 |
| Pathology examination of tissue using a microscope, intermediate complexity | Lab test | 88305 |
1,251 |
| Special stained specimen slides to examine tissue, each additional procedure | Lab test | 88341 |
426 |
| Special stained specimen slides to examine tissue, initial procedure | Lab test | 88342 |
176 |
| Special stained specimen slides to examine tissue, each additional procedure | Lab test | 88341 |
100 |
| Special stained specimen slides to identify organisms including interpretation and report | Lab test | 88312 |
88 |
| Pathology examination of tissue using a microscope, moderately low complexity | Lab test | 88304 |
60 |
| Special stained specimen slides to examine tissue, initial procedure | Lab test | 88342 |
53 |
| Cell examination of specimen, selective cellular enhancement technique | Lab test | 88112 |
50 |
| Pathology examination of tissue using a microscope, moderately high complexity | Lab test | 88307 |
49 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other pathology specialists in San Francisco 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 8 related providers in 1 group
Class of 1996 at Other 8
Providers who graduated from the same medical school in the same year.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.