Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

William Mallott, MD

Individual provider Internal Medicine Physician · NPI 1679670624

William Mallott, MD is a Hospitalist in San Antonio, Texas. Graduated from Texas Tech University Health Science Center School of Medicine in 2001, 25 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 Texas.

Years since qualifying
25
Trained at
Texas Tech University Health Science Center School of Medicine
Licensed in
TX
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

4502 Medical Dr
San Antonio, TX 78229-4402
Phone: (210) 358-4000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 8811 Village Drive, San Antonio, TX 78217 — (210) 297-2311

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence L9336 (TX)
Internal Medicine Physician Taxonomy 207R00000X · Licence L9336 (TX)

Record details

NPI number1679670624
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 20, 2006
Last updated in NPPESNovember 11, 2024
Certification dateNovember 11, 2024

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolTEXAS TECH UNIVERSITY HEALTH SCIENCE CENTER SCHOOL OF MEDICINE
Graduated 2001 (25 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

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 patients95
Services billed 99 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • University Health System Hospital · San Antonio, TX
  • Ut Health San Antonio Multispecialty & Research Ho Hospital · San Antonio, TX

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