Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Anesthesiology

Gregory R. Mehaffey, MD

Works at hospitals in Little Rock, AR · Arkansas

Summary

Dr. Gregory R. Mehaffey, MD is an anesthesiologist at 4301 W Markam St, Little Rock, AR 72205. Phone: (501) 686-8000. Accepts Medicare assignment. In 2024, Gregory R. Mehaffey had 148 Original Medicare patients and 172 services. NPI 1033304902. 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: 4301 W Markam St, Little Rock, AR 72205 · Directions
  • Phone: (501) 686‑8000
  • Medicare: Accepts Medicare assignment
  • Hospital: University of Arkansas Medical Sciences
  • Group practice: University of Arkansas for Medical Sciences
  • Medical school: University Of Alabama School Of Medicine · graduated 2007 (19 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Gregory R. Mehaffey, 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 Gregory R. Mehaffey accept Medicare assignment?
Yes. Medicare's clinician data says Gregory R. Mehaffey 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 Gregory R. Mehaffey see?
In 2024, CMS data shows 148 Original Medicare patients and 172 services for Gregory R. Mehaffey. This counts Original Medicare only and measures volume, not quality.
What is Gregory R. Mehaffey's NPI number?
1033304902. 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 Gregory R. Mehaffey, 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 patients148
Services billed to Medicare172
Different services or procedures57
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Anesthesia for bone marrow aspiration and/or biopsy at pelvic bone (01112)34 services
  2. Anesthesia for other closed procedure on chest (00520)15 services
  3. Insertion of artery tube for blood sampling or infusion through skin (36620)15 services
  4. Anesthesia for other procedure on upper abdomen (00790)11 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 cholesterol71%
  • Arthritis53%
  • Chronic kidney disease43%
  • Depression39%
  • Anxiety36%

Hospitals where Gregory R. Mehaffey works

Medicare's Facility Affiliation Data lists Gregory R. Mehaffey 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 Gregory R. Mehaffey is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Gregory R. Mehaffey as a member of this group (CMS data updated October 2, 2026).

  • University of Arkansas for Medical Sciences1,175 clinicians in the group

Specialties

Find other Anesthesiology doctors in Arkansas →

Other anesthesiologists in Little Rock

Clinicians with the same Medicare primary specialty in Little Rock, AR — not a recommendation.

All anesthesiologists in Little Rock →

Other clinicians in University of Arkansas for Medical Sciences

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

Clinician information

CredentialMD
Medical schoolUniversity Of Alabama School Of Medicine
Graduation year2007 (19 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1033304902
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