Quick answers
- Does Antonio Santillan-Gomez accept Medicare assignment?
- Yes. Medicare's clinician data says Antonio Santillan-Gomez accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Antonio Santillan-Gomez see?
- In 2024, CMS data shows 305 Original Medicare patients and 27,978 services for Antonio Santillan-Gomez. This counts Original Medicare only and measures volume, not quality.
- What is Antonio Santillan-Gomez's NPI number?
- 1013055813. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Antonio Santillan-Gomez, 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.
| Original Medicare patients | 305 |
|---|---|
| Services billed to Medicare | 27,978 |
| Different services or procedures | 118 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Injection, paclitaxel, 1 mg (J9267)7,161 services
- Injection, fosaprepitant, 1 mg (J1453)5,100 services
- Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)2,628 services
- Blood test, comprehensive group of blood chemicals (80053)528 services
- Insertion of needle into vein for collection of blood sample (36415)521 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 cholesterol72%
- High blood pressure71%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)53%
- Arthritis38%
- Diabetes30%
- Chronic kidney disease27%
Hospitals where Antonio Santillan-Gomez works
Medicare's Facility Affiliation Data lists Antonio Santillan-Gomez 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.
- Doctors Hospital of LaredoLaredo, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 450643
- Laredo Medical CenterLaredo, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 450029
- Methodist HospitalSan Antonio, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 450388
- Methodist Hospital Hill CountryFredericksburg, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 450604
- Uvalde Memorial HospitalUvalde, TX · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 451387
Practice locations
Addresses where Antonio Santillan-Gomez is enrolled with Medicare (CMS data updated October 2, 2026).
- 18707 Hardy Oak Blvd, Suite 320San Antonio, TX 78258 (210) 545‑6972
- 5206 Research DrSan Antonio, TX 78240 (210) 595‑5300
Group practices
Medicare enrollment lists Antonio Santillan-Gomez as a member of this group (CMS data updated October 2, 2026).
- Texas Oncology PA1,014 clinicians in the group
Specialties
- Gynecological Oncologyprimary
Other gynecologic oncologists in San Antonio
Clinicians with the same Medicare primary specialty in San Antonio, TX — not a recommendation.
Other clinicians in Texas Oncology PA
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1998 (28 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1013055813 |
| Corrections | Report an error or suggest an update → |
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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians