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Anesthesiology

Aaron Z. Garza, MD

Works at hospitals in San Antonio, TX · Texas

Summary

Dr. Aaron Z. Garza, MD is an anesthesiologist at 3625 N Hall St, Suite 800, Dallas, TX 75219. Phone: (214) 252-3535. Accepts Medicare assignment. In 2024, Aaron Z. Garza had 133 Original Medicare patients and 170 services. NPI 1366861700. 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.

  • Specialty: Anesthesiologist (Medicare lists Anesthesiology)
  • Address: 3625 N Hall St, Suite 800, Dallas, TX 75219 · Directions
  • Phone: (214) 252‑3535
  • Medicare: Accepts Medicare assignment
  • Hospital: Methodist Hospital
  • Group practice: Independent Physicians Network PLLC
  • Medical school: graduated 2014 (12 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Aaron Z. Garza, 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 Aaron Z. Garza accept Medicare assignment?
Yes. Medicare's clinician data says Aaron Z. Garza 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 Aaron Z. Garza see?
In 2024, CMS data shows 133 Original Medicare patients and 170 services for Aaron Z. Garza. This counts Original Medicare only and measures volume, not quality.
What is Aaron Z. Garza's NPI number?
1366861700. 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 Aaron Z. Garza, 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 patients133
Services billed to Medicare170
Different services or procedures50
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)17 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 cholesterol75%
  • Arthritis53%
  • Diabetes43%
  • Chronic kidney disease39%
  • Ischemic heart disease35%

Hospitals where Aaron Z. Garza works

Medicare's Facility Affiliation Data lists Aaron Z. Garza 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 HospitalSan Antonio, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 450388

Practice locations

Addresses where Aaron Z. Garza is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Aaron Z. Garza as a member of this group (CMS data updated October 2, 2026).

  • Independent Physicians Network PLLC228 clinicians in the group

Specialties

Find other Anesthesiology doctors in Texas →

Other anesthesiologists in Dallas

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

All anesthesiologists in Dallas →

Other clinicians in Independent Physicians Network PLLC

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

Clinician information

CredentialMD
Graduation year2014 (12 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1366861700
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