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Anesthesiology

Garland A. Cowan, MD

Works at hospitals in Las Vegas, NV · Nevada

Summary

Dr. Garland A. Cowan, MD is an anesthesiologist at 2565 E Flamingo Rd, Las Vegas, NV 89121. Phone: (702) 697-7900. Accepts Medicare assignment. In 2024, Garland A. Cowan had 30 Original Medicare patients and 33 services. NPI 1659349587. 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: 2565 E Flamingo Rd, Las Vegas, NV 89121 · Directions (1 more location)
  • Phone: (702) 697‑7900
  • Medicare: Accepts Medicare assignment
  • Hospital: Southern Hills Hospital and Medical Center
  • Group practice: Valley Anesthesiology Consultants-Beckett-Pllc
  • Medical school: graduated 1993 (33 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Garland A. Cowan, 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 Garland A. Cowan accept Medicare assignment?
Yes. Medicare's clinician data says Garland A. Cowan 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 Garland A. Cowan see?
In 2024, CMS data shows 30 Original Medicare patients and 33 services for Garland A. Cowan. This counts Original Medicare only and measures volume, not quality.
What is Garland A. Cowan's NPI number?
1659349587. 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 Garland A. Cowan, 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 patients30
Services billed to Medicare33
Different services or procedures19
Participating Medicare providerYes
Average age of these patients70

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 pressure73%
  • High cholesterol73%
  • Arthritis50%
  • Diabetes40%

Hospitals where Garland A. Cowan works

Medicare's Facility Affiliation Data lists Garland A. Cowan 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 Garland A. Cowan is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Garland A. Cowan as a member of this group (CMS data updated October 2, 2026).

  • Valley Anesthesiology Consultants-Beckett-Pllc42 clinicians in the group

Specialties

Find other Anesthesiology doctors in Nevada →

Other anesthesiologists in Las Vegas

Clinicians with the same Medicare primary specialty in Las Vegas, NV — not a recommendation.

All anesthesiologists in Las Vegas →

Other clinicians in Valley Anesthesiology Consultants-Beckett-Pllc

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

Clinician information

CredentialMD
Graduation year1993 (33 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1659349587
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