Duan Zhang
Duan Zhang is a provider specialising in Foot & Ankle Surgery Podiatrist in Port Jefferson Station, NY, registered under NPI 1013571520. This provider registers 7 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 1 MEDICAL DR STE B, Port Jefferson Station, NY 11776. 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 |
|---|---|---|
| N007238-01 | NY | Podiatrist |
| N007238-01 | NY | Primary Podiatric Medicine Podiatrist |
| N007238-01 | NY | Radiology Podiatrist |
| N007238-01 | NY | Sports Medicine Podiatrist |
| N007238-01 | NY | Foot Surgery Podiatrist |
| N007238-01 | NY | Foot & Ankle Surgery Podiatrist primary |
This provider holds licence N007238-01 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
- Practitioner - Podiatry
- PAC ID
- 0547595944
- Enrollment ID
- I20221228000517
Medicare enrolment is recorded as approved under the provider type Practitioner - Podiatry. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Foot & Ankle Surgery covers
Definition to come... NUCC Health Care Provider Taxonomy, code 213ES0103X
All registered taxonomy codes
This provider registers 7 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 213E00000X | Podiatrist | N007238-01 | NY | |
| 213EP1101X | Primary Podiatric Medicine Podiatrist Primary Podiatric Medicine | N007238-01 | NY | |
| 213ER0200X | Radiology Podiatrist Radiology | N007238-01 | NY | |
| 213ES0000X | Sports Medicine Podiatrist Sports Medicine | N007238-01 | NY | |
| 213ES0131X | Foot Surgery Podiatrist Foot Surgery | N007238-01 | NY | |
| 390200000X | Student in an Organized Health Care Education/Training Program | — | — | |
| 213ES0103X | Foot & Ankle Surgery Podiatrist Foot & Ankle Surgery | N007238-01 | NY | primary |
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 | 1013571520 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 30, 2019 |
| Last updated | Sep 2, 2022 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Practice address |
1 MEDICAL DR STE B Port Jefferson Station, NY 11776 (631) 928-8383 |
| Mailing address |
7501 167TH ST Fresh Meadows, NY 11366 |
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 | 0 | 1 | 3 | 5 | 7 | 1 | 5 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 2 | 3 | 1 | 7 | 2 | 5 | 4 |
Sum = 50 · next multiple of 10 = 50 · 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.