Thomas Bienen, M.D.
Internal Medicine Physician · San Antonio, TX
Thomas Bienen, M.D. is an internal medicine physician with a practice address in San Antonio, Texas, and NPI 1952581746, issued on Nov 8, 2007. Check the license (Texas N1554, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Thomas Bienen
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- N1554 TX
Self-reported in NPPES; status is on the state search - Practice location
- 4330 Medical Dr, San Antonio, TX 78229
- Phone
- (210) 576-5306
- Enumerated
- Nov 8, 2007
- Record last updated
- Jul 15, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (210) 694-0645
- Medicare enrollment
- Enrolled (PECOS I20120517000273); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At San Antonio, 2006
- Entity
- Type 1 · individual
Also registered at 4330 Medical Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Haydee AdanGerontology Nurse Practitioner1518164797
- Winnifer Baduel, M.D.Internal Medicine Physician1245397744
- Stephanie Bruno, APRNFamily Nurse Practitioner1134560667
- Darius Buzenas, M.D.Internal Medicine Physician1609019272
- William Davis, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1437195187
- Jennifer Delao, RNRegistered Nurse1649559824
Verify Thomas Bienen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license N1554Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average internal medicine physician in 2024
333 Medicare Part D claims for 152 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 40 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen18 claims
- Furosemide17 claims
- Amlodipine Besylate15 claims
- Levofloxacin15 claims
- Cefdinir14 claims
- Tramadol Hcl14 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 one group practice
- Wellmed Networks, Inc.San Antonio, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (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 657 in San Antonio → All 9,175 in Texas → Every provider in San Antonio →
Other internal medicine physician records in Texas
- Muhammad A. Sattar, MDDallas, TX1760465553
- Gayatri Aaluri, MDGalveston, TX1821928508
- Anunaya AashishDenton, TX1134246374
- Queenie Ann Abad, M.D.San Antonio, TX1174979785
- Fuad Abaleka, M.DLubbock, TX1861925596
- Carol Abalihi, M.D.El Paso, TX1326136243
- Oliverio Abarca Guzman, MDHarlingen, TX1346972940
- Obinna Abaribe, M.DMansfield, TX1457704355
- Enyinnaya Abarikwu, MDTyler, TX1174788178
- Sulaiman Abawi, D.O.Frisco, TX1780845255
Common questions
What is Thomas Bienen, M.D.'s NPI number?
Thomas Bienen, M.D.'s National Provider Identifier (NPI) is 1952581746, issued on Nov 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Bienen, M.D. located?
The NPPES record lists a practice address at 4330 Medical Dr, San Antonio, TX, 78229. Phone: (210) 576-5306. Providers update this record themselves, so call before visiting.
How can I verify Thomas Bienen, M.D.'s license?
NPPES lists Texas license number N1554, 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 Thomas Bienen, M.D. prescribe under Medicare Part D?
In 2024, Thomas Bienen, M.D. had 333 Medicare Part D claims for 152 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.