Thomas Nguyen, MD
NPI 1245301142 · Family Medicine Physician · Anaheim, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Nguyen, MD is a Family Medicine Physician provider in Anaheim, CA (NPI 1245301142).
Provider details
- NPI number
- 1245301142
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 20A8476 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- 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 · 49 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 240 | 235 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 114 | 110 |
| Levothyroxine Sodium | 97 | 94 |
| Rosuvastatin Calcium | 93 | 87 |
| Amlodipine Besylate | 91 | 90 |
| Losartan Potassium | 89 | 86 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$14 across 1 record (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
Registry dates
- Enumerated
- 2006-11-13
- Last updated
- 2021-12-03
Frequently asked questions
- What is Thomas Nguyen's NPI number?
- Thomas Nguyen's National Provider Identifier (NPI) is 1245301142, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Nguyen's specialty?
- Thomas Nguyen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Nguyen located?
- Thomas Nguyen's practice location on file with NPPES is 441 N Lakeview Ave, Anaheim, CA 92807-3028.
- What is Thomas Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Thomas Nguyen is (888) 988-2800.
- Does Thomas Nguyen accept Medicare?
- Thomas Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Nguyen's NPI active?
- Yes — Thomas Nguyen's NPI (1245301142) 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.