Tristan Fun, MD
Internal Medicine Physician · San Antonio, TX
Tristan Fun, MD is an internal medicine physician with a practice address in San Antonio, Texas, and NPI 1770169872, issued on Mar 20, 2021. Check the license (Texas U9526, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Tristan Fun
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- U9526 TX
Self-reported in NPPES; status is on the state search - Practice location
- 12446 West Ave Ste 200, San Antonio, TX 78216
- Phone
- (210) 729-2262
- Enumerated
- Mar 20, 2021
- Record last updated
- Jun 24, 2024
- Medicare enrollment
- Enrolled (PECOS I20240614002860); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At San Antonio, 2021
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 12446 West Ave Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Tristan Fun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license U9526Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average internal medicine physician in 2024
282 Medicare Part D claims for 119 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 27 claims were for opioids.
Most prescribed
- Clopidogrel15 claims
- Metoprolol Tartrate14 claims
- Atorvastatin Calcium13 claims
- Pantoprazole Sodium11 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.
Bills Medicare through 2 group practices
- Complete Care Medical AssociatesSan Antonio, TX
- Hospital Medicine Services OF TX, PLLCSan Antonio, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tristan Fun among 9,175 internal medicine physician records in Texas
Tristan Fun, MD is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 88% of them.
- NPI issued2021 · 88% of these records are older, 9% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2021 · median 2004 among the 6,088 with a school on file
- Record last updated2024 · 49% 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 Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
657 internal medicine physician records list a practice address in San Antonio
They are 657 of the 37,749 NPPES records with a practice address in San Antonio, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in San Antonio → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Leslee Ball-Scovel, MDSan Antonio, TX 782161790759371
- Reid Hartson, MDSan Antonio, TX 782161063528263
- Roseann Miller, MDSan Antonio, TX 782161285646141
- Dennis Murphree, MDSan Antonio, TX 782161174520894
- Kwame Obeng, M.D.San Antonio, TX 782161851320402
- Anthony Oliva, MDSan Antonio, TX 782161467569822
- Lino Ramos, MDSan Antonio, TX 782161851332415
- Shankar Sanka, M.D.San Antonio, TX 782161851395495
Common questions
What is Tristan Fun, MD's NPI number?
Tristan Fun, MD's National Provider Identifier (NPI) is 1770169872, issued on Mar 20, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Tristan Fun, MD located?
The NPPES record lists a practice address at 12446 West Ave Ste 200, San Antonio, TX, 78216. Phone: (210) 729-2262. Providers update this record themselves, so call before visiting.
How can I verify Tristan Fun, MD's license?
NPPES lists Texas license number U9526, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Tristan Fun, MD prescribe under Medicare Part D?
In 2024, Tristan Fun, MD had 282 Medicare Part D claims for 119 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.