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

Charles Andrew Peirce, MD

Individual provider Internal Medicine Physician · NPI 1275068132

Charles Andrew Peirce, MD is a Hospitalist in San Antonio, Texas. Qualified in 2017, 9 years ago. Practices with University of Texas Health Science Center at San Antonio, a 1,295-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
9
Licensed in
TX
In the registry since
2017
Specialties on file
3
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) 358-3555
Fax: (210) 702-4239
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence S6481 (TX)
Internal Medicine Physician Taxonomy 207R00000X · Licence S6481 (TX)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence BP10059285 (TX)

Record details

NPI number1275068132
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 27, 2017
Last updated in NPPESJune 26, 2025
Certification dateJune 26, 2025

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2017 (9 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 patients57
Services billed 233 a service is one billed item, such as a visit, a test or a procedure
Average patient age66

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.

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