WEN-FENG JAN, MD PC
WEN-FENG JAN, MD PC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1669471876, based in Orange, CA. The organization lists 2 taxonomy classifications, with Pediatric Endocrinology Physician recorded as primary.
Getting there
The practice address on file is 1920 E KATELLA AVE SUITE P, Orange, CA 92867. 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 |
|---|---|---|
| A33039 | CA | Pediatric Endocrinology Physician primary |
| A33039 | CA | Pediatrics Physician |
This provider holds licence A33039 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Pediatric Endocrinology covers
A pediatrician who provides expert care to infants, children and adolescents who have diseases that result from an abnormality in the endocrine glands (glands which secrete hormones). These diseases include diabetes mellitus, growth failure, unusual size for age, early or late pubertal development, birth defects, the genital region and disorders of the thyroid, the adrenal and pituitary glands. NUCC Health Care Provider Taxonomy, code 2080P0205X
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 | |
|---|---|---|---|---|
| 2080P0205X | Pediatric Endocrinology Physician Pediatric Endocrinology | A33039 | CA | primary |
| 208000000X | Pediatrics Physician | A33039 | CA |
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-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1669471876 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Jul 19, 2005 |
| Last updated | Oct 24, 2013 |
| Status | Active |
| Practice address |
1920 E KATELLA AVE SUITE P Orange, CA 92867 (714) 639-3060 Fax (714) 639-6471 |
| Other identifiers |
00A330390
· Medicaid (CA) |
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 | 6 | 6 | 9 | 4 | 7 | 1 | 8 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 6 | 3 | 9 | 8 | 7 | 2 | 8 | 5 |
Sum = 74 · next multiple of 10 = 80 · check digit = 6 · actual last digit = 6
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.