George R. Hsieh

Medicare activity in 2024

Official CMS public-use data for George R. Hsieh, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)22 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)18 services
3. Insertion of central venous tube with port (5 years or older) (36561)17 services
4. Fluoroscopic guidance for insertion or removal of central vein access device (77001)16 services
5. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)11 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High cholesterol75%
• High blood pressure69%
• Arthritis39%
• Diabetes33%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)30%
• Ischemic heart disease29%

Hospitals where George R. Hsieh works

Medicare's Facility Affiliation Data lists George R. Hsieh at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Methodist Hospital Stone OakSan Antonio, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 670055

Practice locations

Addresses where George R. Hsieh is enrolled with Medicare (CMS data updated October 2, 2026).

• 155 E Sonterra Blvd, Suite 200San Antonio, TX 78258 (210) 593‑5700
• 18707 Hardy Oak Blvd, Suite 210San Antonio, TX 78258 (210) 593‑2500
• 4383 Medical DrSan Antonio, TX 78229 (210) 593‑5700

Group practices

Medicare enrollment lists George R. Hsieh as a member of this group (CMS data updated October 2, 2026).

• South Texas Oncology and Hematology, PLLC41 clinicians in the group

Specialties

• General Surgeryprimary

Find other General Surgery doctors in Texas →

Other general surgeons in San Antonio

Clinicians with the same Medicare primary specialty in San Antonio, TX — not a recommendation.

• Jonathan M. Cullen, MD
• Ashwini Kumar, MD
• Kari E. Smith, MD
• Mark Gunst, MD
• Robert B. Harrell, MD
• Megan C. O'Toole, DO
• Julia Kohlhaas, MD
• Christopher E. Crane, MD

All general surgeons in San Antonio →

Other clinicians in South Texas Oncology and Hematology, PLLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Divya Asti, MD
• Hanni Salih, MD
• Prathibha Surapaneni
• Suvarna L. Guvvala, MD
• Lisa M. Fichtel, MD
• Ronald L. Drengler, MD

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians