IndividualActive
Thach Nguyen, MD
NPI 1942256631 · Family Medicine Physician · Pomona, CA
Thach Nguyen, MD is a Family Medicine Physician provider in Pomona, CA (NPI 1942256631).
Provider details
- NPI number
- 1942256631
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- License
- A042122 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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.
Practice location
3530 West Pomona Blvd
Pomona, CA 91769-0100
Phone: (909) 595-1221
Street-level locationGet directions
Mailing address
1600 9th Street
Sacramento, CA 95814-6414
Registry dates
- Enumerated
- 2006-05-25
- Last updated
- 2007-07-08
Frequently asked questions
- What is Thach Nguyen's NPI number?
- Thach Nguyen's National Provider Identifier (NPI) is 1942256631, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thach Nguyen's specialty?
- Thach Nguyen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Thach Nguyen located?
- Thach Nguyen's practice location on file with NPPES is 3530 West Pomona Blvd, Pomona, CA 91769-0100.
- What is Thach Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Thach Nguyen is (909) 595-1221.
- Is Thach Nguyen's NPI active?
- Yes — Thach Nguyen's NPI (1942256631) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.