Yen Nguyen, M.D.
NPI 1063614147 · Internal Medicine Physician · Oakland, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yen Nguyen, M.D. is a Internal Medicine Physician provider in Oakland, CA (NPI 1063614147).
Provider details
- NPI number
- 1063614147
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A99680 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 106 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 525 | 193 |
| Amlodipine Besylate | 321 | 111 |
| Levothyroxine Sodium | 232 | 71 |
| Losartan Potassium | 214 | 74 |
| Lisinopril | 187 | 64 |
| Atenolol | 183 | 52 |
| Fluticasone Propionate | 158 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-06-01
- Last updated
- 2022-02-11
Frequently asked questions
- What is Yen Nguyen's NPI number?
- Yen Nguyen's National Provider Identifier (NPI) is 1063614147, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yen Nguyen's specialty?
- Yen Nguyen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Yen Nguyen located?
- Yen Nguyen's practice location on file with NPPES is 280 W Macarthur Blvd, Oakland, CA 94611-5642.
- What is Yen Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Yen Nguyen is (510) 208-3568.
- Does Yen Nguyen accept Medicare?
- Yen Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yen Nguyen's NPI active?
- Yes — Yen Nguyen's NPI (1063614147) is active in the NPPES registry as of the last update on 2022-02-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.