NPPES file of Aug 9, 2026

Nicholas Thanh Tran, M.D.

Endocrinology, Diabetes & Metabolism Physician · Westminster, CA

Nicholas Thanh Tran, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Westminster, California, and NPI 1265498349, issued on Apr 26, 2006. Check the license (California A67914, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1265498349
Name
Nicholas Thanh Tran
Credential
M.D.
Primary taxonomy
Endocrinology, Diabetes & Metabolism Physician 207RE0101X
License number
A67914 CA
Self-reported in NPPES; status is on the state search
Practice location
15651 Brookhurst St, Westminster, CA 92683
Phone
(714) 531-6969
Enumerated
Apr 26, 2006
Record last updated
Jul 13, 2026
Fax
(714) 531-9698
Medicare enrollment
Enrolled (PECOS I20120716000138); may accept Medicare assignment
Medical or professional school
University Of Southern California Keck School Of Medicine, 1995
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest endocrinology, diabetes & metabolism physician records → All 1,131 in California → Look up another NPI →

Also registered at 15651 Brookhurst St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Yichun Lin, PHARMDPharmacist1619287133

Verify Nicholas Thanh Tran in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A67914    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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3.3 times the Medicare Part D claims of the average endocrinology, diabetes & metabolism physician in 2024

8,687 Medicare Part D claims for 331 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 38% of claims.

  1. Nicholas Tran8,687
  2. Specialty average2,630

Most prescribed

  1. Metformin Hcl783 claims
  2. Jardiance633 claims
  3. Atorvastatin Calcium443 claims
  4. Synthroid399 claims
  5. Losartan Potassium300 claims
  6. Farxiga299 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $2,832.91

56 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 5,661 providers of this specialty with any payment received $5,742.15 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Nicholas Tran$2,832.91
  2. Specialty average$5,742.15

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Nicholas Thanh Tran among 1,131 endocrinology, diabetes & metabolism physician records in California

Nicholas Thanh Tran, M.D. is one of 1,131 endocrinology, diabetes & metabolism physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 54% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated1995 · median 2003 among the 779 with a school on file
  • Record last updated2026 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endocrinology, Diabetes & Metabolism Physician providers in California

There are 1,131 endocrinology, diabetes & metabolism physician records in California.

All 1,131 in California → Every provider in Westminster → Endocrinology, Diabetes & Metabolism Physician nationwide →

The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes

  1. Lan Nguyen, MDWestminster, CA 926831710915673
  2. Andy NguyenWestminster, CA 926831851746028
  3. Afshin Hamidi, M.D.Rancho Santa Margarita, CA 926881609222090
  4. Amitpal Kohli, M.D.Laguna Niguel, CA 926771215151071
  5. Maryam Nemati, M.D.Laguna Niguel, CA 926771750872305
  6. Stuart Seigel, MDLaguna Niguel, CA 926771073763983
  7. Joseph Barrera, M.D.Mission Viejo, CA 926911629054630
  8. Jessica Chan, MDMission Viejo, CA 926911275927485

Common questions

What is Nicholas Thanh Tran, M.D.'s NPI number?

Nicholas Thanh Tran, M.D.'s National Provider Identifier (NPI) is 1265498349, issued on Apr 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Nicholas Thanh Tran, M.D. located?

The NPPES record lists a practice address at 15651 Brookhurst St, Westminster, CA, 92683. Phone: (714) 531-6969. Providers update this record themselves, so call before visiting.

How can I verify Nicholas Thanh Tran, M.D.'s license?

NPPES lists California license number A67914, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Nicholas Thanh Tran, M.D. prescribe under Medicare Part D?

In 2024, Nicholas Thanh Tran, M.D. had 8,687 Medicare Part D claims for 331 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.