Quoc Nguyen, M.D., M.P.H
NPI 1043240450 · Internal Medicine Physician · Brea, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Quoc Nguyen, M.D., M.P.H is a Internal Medicine Physician provider in Brea, CA (NPI 1043240450).
Provider details
- NPI number
- 1043240450
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., M.P.H
- Sex
- Male
- Sole proprietor
- No
- License
- A94436 (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 · 90 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 408 | 164 |
| Amlodipine Besylate | 219 | 87 |
| Lisinopril | 169 | 61 |
| Empagliflozinbrand: Jardiance | 142 | 58 |
| Rosuvastatin Calcium | 126 | 47 |
| Losartan Potassium | 124 | 52 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-03
- Last updated
- 2021-12-03
Frequently asked questions
- What is Quoc Nguyen's NPI number?
- Quoc Nguyen's National Provider Identifier (NPI) is 1043240450, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Quoc Nguyen's specialty?
- Quoc Nguyen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Quoc Nguyen located?
- Quoc Nguyen's practice location on file with NPPES is 1900 E Lambert Rd, Brea, CA 92821-4371.
- What is Quoc Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Quoc Nguyen is (714) 672-5100.
- Does Quoc Nguyen accept Medicare?
- Quoc Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Quoc Nguyen's NPI active?
- Yes — Quoc Nguyen's NPI (1043240450) is active in the NPPES registry as of the last update on 2021-12-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.