Than Nguyen, D.O.
NPI 1316207236 · Internal Medicine Physician · Berkeley, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Than Nguyen, D.O. is a Internal Medicine Physician provider in Berkeley, CA (NPI 1316207236).
Provider details
- NPI number
- 1316207236
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20A15824 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
14 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C | 368 | 358 |
| Pantoprazole Sodium | 153 | 45 |
| Omeprazole | 87 | 27 |
| Famotidine | 35 | 13 |
| Mesalamine | 33 | — |
| Cholestyramine (with Sugar)brand: Cholestyramine | 31 | 15 |
| Azathioprine | 24 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$182 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 28050 Grand River AveFarmington Hills, MI 48336-5919Phone: (248) 471-8224
Registry dates
- Enumerated
- 2012-05-24
- Last updated
- 2025-11-20
- Certified
- 2025-11-20
Frequently asked questions
- What is Than Nguyen's NPI number?
- Than Nguyen's National Provider Identifier (NPI) is 1316207236, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Than Nguyen's specialty?
- Than Nguyen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Than Nguyen located?
- Than Nguyen's practice location on file with NPPES is 2850 Telegraph Ave Ste 130, Berkeley, CA 94705-1159.
- What is Than Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Than Nguyen is (510) 204-8120.
- Does Than Nguyen accept Medicare?
- Than Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Than Nguyen's NPI active?
- Yes — Than Nguyen's NPI (1316207236) is active in the NPPES registry as of the last update on 2025-11-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.