NPPES file of Aug 9, 2026

Thang Duc Tran, MD

Internal Medicine Physician · San Jose, CA

Thang Duc Tran, MD is an internal medicine physician with a practice address in San Jose, California, and NPI 1275514069, issued on Nov 8, 2005. Check the license (California CLG81642, 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
1275514069
Name
Thang Duc Tran
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
CLG81642 CA
Self-reported in NPPES; status is on the state search
Practice location
969 Story RD Unit 6060A, San Jose, CA 95122
Phone
(408) 223-8818
Enumerated
Nov 8, 2005
Record last updated
Apr 2, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(408) 223-8884
Medicaid ID
00G816420 CA
Medicare enrollment
Enrolled (PECOS I20100514000237); accepts Medicare assignment
Medical or professional school
University Of Virginia School Of Medicine, 1993
Telehealth
Offers telehealth (CMS)
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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Also registered at 969 Story RD Unit 6060A

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

  1. Valerie Le, FNP-CInternal Medicine Physician1568004257
  2. Trang Nguyen, PHYSICIAN ASSISTANTPhysician Assistant1275225666
  3. Tracy Phan, NPFamily Nurse Practitioner1972137446
  4. Michelle Tham, NPNurse Practitioner1629826649

Verify Thang Duc 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 CLG81642
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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2.6 times the Medicare Part D claims of the average internal medicine physician in 2024

8,163 Medicare Part D claims for 405 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Thang Tran8,163
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium698 claims
  2. Losartan Potassium587 claims
  3. Amlodipine Besylate503 claims
  4. Omeprazole345 claims
  5. Fluticasone Propionate316 claims
  6. Metformin Hcl303 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: $1,296.22

36 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Thang Tran$1,296.22
  2. Specialty average$1,303.06

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

Thang Duc Tran among 17,696 internal medicine physician records in California

Thang Duc Tran, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 95% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1993 · median 2004 among the 11,065 with a school on file
  • Record last updated2020 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

428 internal medicine physician records list a practice address in San Jose

They are 428 of the 20,925 NPPES records with a practice address in San Jose, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Nora Ancheta, MDSan Jose, CA 951221588733166
  2. Lawrence Bonaldi, M.D.San Jose, CA 951221851379796
  3. Phuc Dang, MDSan Jose, CA 951221457316150
  4. David Do, MDSan Jose, CA 951221801859459
  5. Thuy Hoang, MDSan Jose, CA 951221366445413
  6. Rosalinda Mandreza, MDSan Jose, CA 951221336197185
  7. Kelly Murphy, M.D.San Jose, CA 951221194882787
  8. Hanh Nguyen, MDSan Jose, CA 951221730144437

Common questions

What is Thang Duc Tran, MD's NPI number?

Thang Duc Tran, MD's National Provider Identifier (NPI) is 1275514069, issued on Nov 8, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Thang Duc Tran, MD located?

The NPPES record lists a practice address at 969 Story RD Unit 6060A, San Jose, CA, 95122. Phone: (408) 223-8818. Providers update this record themselves, so call before visiting.

How can I verify Thang Duc Tran, MD's license?

NPPES lists California license number CLG81642, 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 Thang Duc Tran, MD prescribe under Medicare Part D?

In 2024, Thang Duc Tran, MD had 8,163 Medicare Part D claims for 405 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.

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.