Hanh Nguyen, D.O
NPI 1639581986 · Family Medicine Physician · Santa Ana, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hanh Nguyen, D.O is a Family Medicine Physician provider in Santa Ana, CA (NPI 1639581986).
Provider details
- NPI number
- 1639581986
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 yrs in NPPES registry
- Profile completeness38% of score
83% 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 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 68 | 68 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 64 | 59 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 51 | 49 |
| Cefadroxil | 50 | 50 |
| Doxycycline Monohydrate | 29 | 29 |
| Naproxen | 29 | 29 |
| Ciclesonidebrand: Alvesco | 24 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-05-21
- Last updated
- 2021-11-23
- Certified
- 2021-11-23
Frequently asked questions
- What is Hanh Nguyen's NPI number?
- Hanh Nguyen's National Provider Identifier (NPI) is 1639581986, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hanh Nguyen's specialty?
- Hanh Nguyen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Hanh Nguyen located?
- Hanh Nguyen's practice location on file with NPPES is 1900 E 4th St, Santa Ana, CA 92705-3962.
- What is Hanh Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Hanh Nguyen is (714) 967-4766.
- Does Hanh Nguyen accept Medicare?
- Hanh Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hanh Nguyen's NPI active?
- Yes — Hanh Nguyen's NPI (1639581986) is active in the NPPES registry as of the last update on 2021-11-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.