Derek Truong Phan MD Inc
Derek Truong Phan MD Inc is a healthcare organization registered as Internal Medicine Physician in Westminster, CA, holding Type 2 (organization) NPI 1598091837 since 2009. The authorized official on file is Derek Phan, Owner.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1598091837 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Derek Truong Phan MD Inc |
| Practice address | 9191 BOLSA AVE, SUITE 205, Westminster, CA, 92683 |
| Phone | 7148917035 |
| Fax | 7148978304 |
| Enumeration date | 2009-10-21 |
| Last updated in NPPES | 2009-10-21 |
Authorized official
| Name | Derek Phan |
|---|---|
| Title | Owner |
| Phone | 7143831661 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207R00000X | Internal Medicine Physician | Primary | A99908 | CA |
Copy-ready billing details
Provider: Derek Truong Phan MD Inc NPI: 1598091837 Taxonomy: 207R00000X (Internal Medicine Physician) Address: 9191 BOLSA AVE, SUITE 205, Westminster, CA, 92683
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1851365845 | D S Pharmaceuticals Inc | Organization | Community/Retail Pharmacy | Westminster, CA |
| 1245289198 | Thuy Duc Luu MD Inc | Organization | General Practice Physician | Westminster, CA |
| 1457301723 | Thuy Luu | Individual | General Practice Physician | Westminster, CA |
| 1437160439 | Khanh Pham | Individual | Family Medicine Physician | Westminster, CA |
| 1528131471 | Thuy Nguyen | Individual | Acupuncturist | Westminster, CA |
| 1346366093 | Tam Nguyen | Individual | Optometrist | Westminster, CA |
| 1154591766 | Khanh G Pham, MD Inc | Organization | Family Medicine Physician | Westminster, CA |
| 1619248903 | Dillon Tran | Individual | Family Medicine Physician | Westminster, CA |
Verify this record
Cross-check NPI 1598091837 against the authoritative CMS record: view Derek Truong Phan MD Inc on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
Who is the authorized official for Derek Truong Phan MD Inc?
What is the NPI number for Derek Truong Phan MD Inc?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2009-10-21.