Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mark Thomas Foster

Individual provider Emergency Medicine Physician · NPI 1053653394

Mark Thomas Foster practises Emergency Medicine in San Antonio, Texas. Graduated from Indiana University School of Medicine in 2013, 13 years ago. Practices with University of Texas Health Science Center at San Antonio, a 1,295-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in New York and Texas.

Years since qualifying
13
Trained at
Indiana University School of Medicine
Licensed in
NY, TX
In the registry since
2013
Specialties on file
3
Claim this listing Report a problem Suggest an edit

Practice location Address checks out

4502 Medical Dr
San Antonio, TX 78229-4402
Phone: (210) 358-4000
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 300 Community Dr, Manhasset, NY 11030-3816 — (516) 562-1177

Specialties & licences

Surgical Critical Care Physician (primary) Taxonomy 2086S0102X · Licence S2774 (TX)
Emergency Medicine Physician Taxonomy 207P00000X · Licence S2774 (TX)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 278356 (NY)

Record details

NPI number1053653394
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedMarch 25, 2013
Last updated in NPPESNovember 28, 2023
Certification dateNovember 26, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Also practisesGENERAL SURGERY
Medical schoolINDIANA UNIVERSITY SCHOOL OF MEDICINE
Graduated 2013 (13 years in practice)
Group practice University Of Texas Health Science Center At San Antonio — 1295 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients61
Services billed 109 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $63 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at University of Texas Health Science Center at San Antonio

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1295 clinicians in the practice; 12 are shown here.

Other providers in San Antonio