Quick answers
- Does Matthew J. Butler accept Medicare assignment?
- Yes. Medicare's clinician data says Matthew J. Butler 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 Matthew J. Butler see?
- In 2024, CMS data shows 453 Original Medicare patients and 46,806 services for Matthew J. Butler. This counts Original Medicare only and measures volume, not quality.
- What is Matthew J. Butler's NPI number?
- 1013297167. 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 Matthew J. Butler, 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 | 453 |
|---|---|
| Services billed to Medicare | 46,806 |
| Different services or procedures | 111 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Injection, pembrolizumab, 1 mg (J9271)6,200 services
- Injection, daratumumab, 10 mg and hyaluronidase-fihj (J9144)2,880 services
- Injection, fosaprepitant, 1 mg (J1453)2,850 services
- Injection, docetaxel, 1 mg (J9171)1,368 services
- Bcg live intravesical instillation, 1 mg (J9030)1,268 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 blood pressure75%
- High cholesterol70%
- Arthritis44%
- Chronic kidney disease33%
- Diabetes31%
- Ischemic heart disease29%
Hospitals where Matthew J. Butler works
Medicare's Facility Affiliation Data lists Matthew J. Butler 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.
- University Health SystemSan Antonio, TX · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 450213
- UT Health San Antonio Multispecialty & Research HoSan Antonio, TX · Acute Care Hospital · Emergency services: not listed by Medicare · CCN 670335
Practice locations
Addresses where Matthew J. Butler is enrolled with Medicare (CMS data updated October 2, 2026).
- 4502 Medical DrSan Antonio, TX 78229 (210) 358‑4000
- 7979 Wurzbach RdSan Antonio, TX 78229 (210) 450‑9000
Group practices
Medicare enrollment lists Matthew J. Butler as a member of this group (CMS data updated October 2, 2026).
- University of Texas Health Science Center at San Antonio1,297 clinicians in the group
Specialties
- Hematology/Oncologyprimary
- Internal Medicinealso
Other hematologist-oncologists in San Antonio
Clinicians with the same Medicare primary specialty in San Antonio, TX — not a recommendation.
Other clinicians in University of Texas Health Science Center at San Antonio
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2011 (15 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) | 1013297167 |
| 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