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Anesthesiology

Joel W. Warfel, MD

Works at hospitals in San Antonio, TX · Texas

Summary

Dr. Joel W. Warfel, MD is an anesthesiologist at 12446 W Ave, Suite 200, San Antonio, TX 78216. Phone: (210) 525-1668. Accepts Medicare assignment. In 2024, Joel W. Warfel had 91 Original Medicare patients and 506 services. NPI 1518371954. 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: 12446 W Ave, Suite 200, San Antonio, TX 78216 · Directions
  • Phone: (210) 525‑1668
  • Medicare: Accepts Medicare assignment
  • Hospital: Methodist Hospital
  • Group practice: South Texas Cardiovascular Anesthesia
  • 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 Joel W. Warfel, 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 Joel W. Warfel accept Medicare assignment?
Yes. Medicare's clinician data says Joel W. Warfel 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 Joel W. Warfel see?
In 2024, CMS data shows 91 Original Medicare patients and 506 services for Joel W. Warfel. This counts Original Medicare only and measures volume, not quality.
What is Joel W. Warfel's NPI number?
1518371954. 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 Joel W. Warfel, 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 patients91
Services billed to Medicare506
Different services or procedures34
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Ultrasonic guidance for blood vessel access (76937)86 services
  2. Insertion of artery tube for blood sampling or infusion through skin (36620)81 services
  3. Ultrasound of heart with probe in esophagus, with report (93312)49 services
  4. Ultrasound of heart blood flow, valves and chambers (93320)49 services
  5. Ultrasound of heart with color-depicted blood flow, rate and valve function (93325)49 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%
  • Ischemic heart disease75%
  • Atrial fibrillation60%
  • Heart failure58%
  • Diabetes48%

Hospitals where Joel W. Warfel works

Medicare's Facility Affiliation Data lists Joel W. Warfel 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 Joel W. Warfel is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Joel W. Warfel as a member of this group (CMS data updated October 2, 2026).

  • South Texas Cardiovascular Anesthesia11 clinicians in the group

Specialties

Find other Anesthesiology doctors in Texas →

Other anesthesiologists in San Antonio

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

All anesthesiologists in San Antonio →

Other clinicians in South Texas Cardiovascular Anesthesia

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)1518371954
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