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Hematology/Oncology

Matthew J. Butler, MD

Works at hospitals in San Antonio, TX · Texas

Summary

Dr. Matthew J. Butler, MD is a hematologist-oncologist at 4502 Medical Dr, San Antonio, TX 78229. Phone: (210) 358-4000. Accepts Medicare assignment. In 2024, Matthew J. Butler had 453 Original Medicare patients and 46,806 services. NPI 1013297167. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Matthew J. Butler, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

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 patients453
Services billed to Medicare46,806
Different services or procedures111
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Injection, pembrolizumab, 1 mg (J9271)6,200 services
  2. Injection, daratumumab, 10 mg and hyaluronidase-fihj (J9144)2,880 services
  3. Injection, fosaprepitant, 1 mg (J1453)2,850 services
  4. Injection, docetaxel, 1 mg (J9171)1,368 services
  5. 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.

Practice locations

Addresses where Matthew J. Butler is enrolled with Medicare (CMS data updated October 2, 2026).

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

Find other Hematology/Oncology doctors in Texas →

Other hematologist-oncologists in San Antonio

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

All hematologist-oncologists in San Antonio →

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

CredentialMD
Graduation year2011 (15 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1013297167
CorrectionsReport 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

  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