Duoc Nguyen, MD
NPI 1609954791 · Emergency Medicine Physician · Antioch, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Duoc Nguyen, MD is a Emergency Medicine Physician provider in Antioch, CA (NPI 1609954791).
Provider details
- NPI number
- 1609954791
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A56415 (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 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 73 | 70 |
| Cefadroxil | 64 | 63 |
| Methocarbamol | 63 | 53 |
| Ibuprofen | 50 | 42 |
| Tizanidine Hcl | 36 | 34 |
| Prednisone | 26 | 26 |
| Cephalexin | 22 | 22 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-02
- Last updated
- 2021-12-03
Frequently asked questions
- What is Duoc Nguyen's NPI number?
- Duoc Nguyen's National Provider Identifier (NPI) is 1609954791, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Duoc Nguyen's specialty?
- Duoc Nguyen is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Duoc Nguyen located?
- Duoc Nguyen's practice location on file with NPPES is 3400 Delta Fair Blvd, Antioch, CA 94509-4004.
- What is Duoc Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Duoc Nguyen is (925) 779-5000.
- Does Duoc Nguyen accept Medicare?
- Duoc Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Duoc Nguyen's NPI active?
- Yes — Duoc Nguyen's NPI (1609954791) 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.