NPPES file of Aug 9, 2026

Tim Thanh Nguyen, M.D

Family Medicine Physician · San Jose, CA

Tim Thanh Nguyen, M.D is a family medicine physician with a practice address in San Jose, California, and NPI 1497193643, issued on Jun 10, 2013. Check the license (California A126136, 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
1497193643
Name
Tim Thanh Nguyen
Credential
M.D
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A126136 CA
Self-reported in NPPES; status is on the state search
Practice location
1870 Lundy Ave, San Jose, CA 95131
Phone
(408) 573-9686
Enumerated
Jun 10, 2013
Record last updated
Mar 23, 2017 (not updated in 9 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20150803002421); may accept Medicare assignment
Medical or professional school
University Of Kansas School Of Med (Kc/Wich/Sal), 2011
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.
Download card Updates feed

Also registered at 1870 Lundy Ave

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

  1. Chen Chen, M.B.Pediatrics Physician1811683279
  2. Feng Chen, MDFamily Medicine Physician1982285268
  3. Xin ChenClinical Social Worker1982315412
  4. Chien-Wai Chiu, MDGeriatric Medicine (Internal Medicine) Physician1013544931
  5. Ning Ding, L. AC.Acupuncturist1700478484
  6. Leilei Gu, FNPFamily Nurse Practitioner1588451314

Verify Tim Thanh Nguyen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A126136
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

24% more Medicare Part D claims than the average family medicine physician in 2024

4,383 Medicare Part D claims for 417 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 30 claims were for opioids.

  1. Tim Nguyen4,383
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium388 claims
  2. Amlodipine Besylate357 claims
  3. Losartan Potassium268 claims
  4. Metformin Hcl218 claims
  5. Naproxen166 claims
  6. Simvastatin141 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.

Tim Thanh Nguyen among 17,133 family medicine physician records in California

Tim Thanh Nguyen, M.D is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 68% of them.

  • NPI issued2013 · 68% of these records are older, 29% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2011 · median 2005 among the 10,652 with a school on file
  • Record last updated2017 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

265 family medicine physician records list a practice address in San Jose

They are 265 of the 20,925 NPPES records with a practice address in San Jose, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Feng Chen, MDSan Jose, CA 951311982285268
  2. Gavin Liu, DOSan Jose, CA 951311255951752
  3. Khae Saephanh, D.O.San Jose, CA 951311669588133
  4. Qingbo Sui, D.O.San Jose, CA 951311679996151
  5. John Tso, M.D.San Jose, CA 951311811160377
  6. Yuetin Wong, M.D.San Jose, CA 951311922399021
  7. Vincent Le, DOSan Jose, CA 951321760485171
  8. Denise Babin, MDSan Jose, CA 951291174848121

Common questions

What is Tim Thanh Nguyen, M.D's NPI number?

Tim Thanh Nguyen, M.D's National Provider Identifier (NPI) is 1497193643, issued on Jun 10, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Tim Thanh Nguyen, M.D located?

The NPPES record lists a practice address at 1870 Lundy Ave, San Jose, CA, 95131. Phone: (408) 573-9686. Providers update this record themselves, so call before visiting.

How can I verify Tim Thanh Nguyen, M.D's license?

NPPES lists California license number A126136, 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 Tim Thanh Nguyen, M.D prescribe under Medicare Part D?

In 2024, Tim Thanh Nguyen, M.D had 4,383 Medicare Part D claims for 417 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.