Yan Zhang, M.D.
Yan Zhang, M.D. is a Hematology (Pathology) Physician in Brooklyn, NY, registered under NPI 1467739110. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 451 CLARKSON AVE, Brooklyn, NY 11203. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 274138 | NY | Hematology (Pathology) Physician primary |
| 274138 | NY | Anatomic Pathology & Clinical Pathology… |
This provider holds licence 274138 issued in NY. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Order And Referring Only - Pathology
- PAC ID
- 8820399041
Medicare enrolment is recorded as approved under the provider type Order And Referring Only - Pathology. This means the provider is enrolled to bill Medicare, though it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Hematology covers
A hematopathologist is expert in diseases that affect blood cells, blood clotting mechanisms, bone marrow and lymph nodes. This physician has the knowledge and technical skills essential for the laboratory diagnosis of anemias, leukemias, lymphomas, bleeding disorders and blood clotting disorders. NUCC Health Care Provider Taxonomy, code 207ZH0000X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207ZH0000X | Hematology (Pathology) Physician Hematology | 274138 | NY | primary |
| 207ZP0102X | Anatomic Pathology & Clinical Pathology Physician Anatomic Pathology & Clinical Pathology | 274138 | NY |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1467739110 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Nov 9, 2011 |
| Last updated | Sep 12, 2015 |
| Status | Active |
| Sole proprietor | No |
| Credential | M.D. |
| Practice address |
451 CLARKSON AVE Brooklyn, NY 11203 (718) 245-5374 |
| Mailing address |
6909 65TH DR Middle Village, NY 11379 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 4 | 6 | 7 | 7 | 3 | 9 | 1 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 4 | 3 | 7 | 5 | 3 | 9 | 1 | 2 |
Sum = 60 · next multiple of 10 = 60 · check digit = 0 · actual last digit = 0
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.