Paul Nguyen, DO
NPI 1659073112 · Family Medicine Physician · Santa Rosa, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Paul Nguyen, DO is a Family Medicine Physician provider in Santa Rosa, CA (NPI 1659073112).
Provider details
- NPI number
- 1659073112
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 23341 (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
3 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) |
|---|---|
| Amlodipine Besylate | 22 |
| Atorvastatin Calcium | 19 |
| Duloxetine Hcl | 18 |
| Gabapentin | 15 |
| Losartan Potassium | 13 |
| Losartan/Hydrochlorothiazidebrand: Losartan-Hydrochlorothiazide | 13 |
| Omeprazole | 12 |
| Fluticasone Propionate | 11 |
| Albuterol Sulfate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-03-20
- Last updated
- 2026-05-29
- Certified
- 2026-05-29
Frequently asked questions
- What is Paul Nguyen's NPI number?
- Paul Nguyen's National Provider Identifier (NPI) is 1659073112, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Paul Nguyen's specialty?
- Paul Nguyen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Paul Nguyen located?
- Paul Nguyen's practice location on file with NPPES is 3569 Round Barn Cir Ste 200, Santa Rosa, CA 95403-5784.
- What is Paul Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Paul Nguyen is (707) 583-8800.
- Does Paul Nguyen accept Medicare?
- Paul Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Paul Nguyen's NPI active?
- Yes — Paul Nguyen's NPI (1659073112) is active in the NPPES registry as of the last update on 2026-05-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.