Nga Nguyen, M.D.
NPI 1346447984 · Internal Medicine Physician · Garden Grove, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nga Nguyen, M.D. is a Internal Medicine Physician provider in Garden Grove, CA (NPI 1346447984).
Provider details
- NPI number
- 1346447984
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A90046 (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
18 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 · 63 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 261 | 98 |
| Losartan Potassium | 182 | 56 |
| Rosuvastatin Calcium | 156 | 59 |
| Amlodipine Besylate | 154 | 53 |
| Levothyroxine Sodium | 118 | 37 |
| Lisinopril | 94 | 37 |
| Albuterol Sulfate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-06-28
- Last updated
- 2021-12-03
Frequently asked questions
- What is Nga Nguyen's NPI number?
- Nga Nguyen's National Provider Identifier (NPI) is 1346447984, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nga Nguyen's specialty?
- Nga Nguyen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nga Nguyen located?
- Nga Nguyen's practice location on file with NPPES is 12100 Euclid St, Garden Grove, CA 92840-3304.
- What is Nga Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Nga Nguyen is (714) 741-3522.
- Does Nga Nguyen accept Medicare?
- Nga Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nga Nguyen's NPI active?
- Yes — Nga Nguyen's NPI (1346447984) 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.