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

Alvin Michael Shih, DO

Individual provider Internal Medicine Physician · NPI 1689052037

Alvin Michael Shih, DO practises Internal Medicine in San Antonio, Texas. Qualified in 2015, 11 years ago. Practices with Hospital Medicine Services of Tx, PLLC, a 372-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
11
Licensed in
TX
In the registry since
2015
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1139 E Sonterra Blvd
San Antonio, TX 78258-4347
Phone: (210) 638-2000
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence R7327 (TX)

Record details

NPI number1689052037
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 18, 2015
Last updated in NPPESApril 2, 2019

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice Hospital Medicine Services Of Tx, Pllc — 372 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 patients362
Services billed 375 a service is one billed item, such as a visit, a test or a procedure
Average patient age78

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.

  • Baptist Medical Center Hospital · San Antonio, TX
  • Baptist Neighborhood Hospital Thousand Oaks Hospital · San Antonio, TX
  • Methodist Hospital Hospital · San Antonio, TX
  • Methodist Hospital Stone Oak Hospital · San Antonio, TX
  • Peterson Regional Medical Center Hospital · Kerrville, TX

Colleagues at Hospital Medicine Services of Tx, PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 372 clinicians in the practice; 12 are shown here.

Other providers in San Antonio