FRANK QUEI-CHUAN, TANG MD.FAAP.INC.
FRANK QUEI-CHUAN, TANG MD.FAAP.INC. is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1154421089, based in Murrieta, CA. The organization lists 2 taxonomy classifications, with General Practice Physician recorded as primary.
Getting there
The practice address on file is 40690 CALIFORNIA OAKS RD # A, Murrieta, CA 92562. 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 |
|---|---|---|
| A38063 | CA | General Practice Physician primary |
| A38063 | CA | Pediatrics Physician |
This provider holds licence A38063 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 General Practice covers
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. NUCC Health Care Provider Taxonomy, code 208D00000X
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 | |
|---|---|---|---|---|
| 208D00000X | General Practice Physician | A38063 | CA | primary |
| 208000000X | Pediatrics Physician | A38063 | 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 | 1154421089 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Sep 22, 2006 |
| Last updated | Sep 11, 2025 |
| Status | Active |
| Practice address |
40690 CALIFORNIA OAKS RD # A Murrieta, CA 92562 (951) 677-0098 Fax (951) 677-2017 |
| Other identifiers |
00A380630
(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 | 1 | 5 | 4 | 4 | 2 | 1 | 0 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 1 | 1 | 4 | 8 | 2 | 2 | 0 | 7 |
Sum = 51 · next multiple of 10 = 60 · check digit = 9 · actual last digit = 9
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.