NPPES file of Aug 9, 2026

Dat Tan Huynh, M.D.

Internal Medicine Physician · San Jose, CA

Dat Tan Huynh, M.D. is an internal medicine physician with a practice address in San Jose, California, and NPI 1033298963, issued on Nov 2, 2006. Check the license (California A500710, 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
1033298963
Name
Dat Tan Huynh
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A500710 CA
Self-reported in NPPES; status is on the state search
Practice location
1661 Burdette Dr, San Jose, CA 95121
Phone
(408) 270-4582
Enumerated
Nov 2, 2006
Record last updated
Aug 20, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicaid ID
00A500710 CA
Medicare enrollment
Enrolled (PECOS I20111216000736); accepts Medicare assignment
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.
Download card Updates feed

8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →

Also registered at 1661 Burdette Dr

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

  1. Hong Bui, M.D.Internal Medicine Physician1417944471
  2. Nhi Huynh, M.DPsychiatry Physician1710066642
  3. Bay Nguyen, RPHPharmacist1740276195
  4. Mai-Anh Nguyen, O.D.Optometrist1134204654
  5. Hung Ninh, M.D.Obstetrics & Gynecology Physician1558319335

Verify Dat Tan Huynh in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A500710    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.

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

9,202 Medicare Part D claims for 432 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.

  1. Dat Huynh9,202
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium984 claims
  2. Amlodipine Besylate806 claims
  3. Losartan Potassium556 claims
  4. Jardiance357 claims
  5. Triamcinolone Acetonide355 claims
  6. Famotidine303 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: $2,330.64

53 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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. Dat Huynh$2,330.64
  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.

Bills Medicare through one group practice

  1. One Health Medical FoundationSan Jose, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Dat Tan Huynh among 17,696 internal medicine physician records in California

Dat Tan Huynh, M.D. 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 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 56% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1970 · median 2004 among the 11,065 with a school on file
  • Record last updated2007 · 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.

All 17,696 in California → Every provider in San Jose → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Hong Bui, M.D.San Jose, CA 951211417944471
  2. Lam Do, M.D.San Jose, CA 951211588689814
  3. Chistopher Do, M.D.San Jose, CA 951211407876659
  4. Tuan Le, M.D.San Jose, CA 951211982602710
  5. Thuyvy Le, DOSan Jose, CA 951211841751088
  6. Donna Lee, MDSan Jose, CA 951211093792004
  7. Naheed Malik, M.D.San Jose, CA 951211699889105
  8. Thinh Nguyen, M.D.San Jose, CA 951211073759163

Common questions

What is Dat Tan Huynh, M.D.'s NPI number?

Dat Tan Huynh, M.D.'s National Provider Identifier (NPI) is 1033298963, issued on Nov 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Dat Tan Huynh, M.D. located?

The NPPES record lists a practice address at 1661 Burdette Dr, San Jose, CA, 95121. Phone: (408) 270-4582. Providers update this record themselves, so call before visiting.

How can I verify Dat Tan Huynh, M.D.'s license?

NPPES lists California license number A500710, 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 Dat Tan Huynh, M.D. prescribe under Medicare Part D?

In 2024, Dat Tan Huynh, M.D. had 9,202 Medicare Part D claims for 432 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.

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.