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

Anesthesiology

Gwendolyn L. Raynor, MD

Works at hospitals in Phoenix, AZ · Arizona

Summary

Dr. Gwendolyn L. Raynor, MD is an anesthesiologist at 13400 E Shea Blvd, Scottsdale, AZ 85259. Phone: (480) 301-8000. Accepts Medicare assignment. In 2024, Gwendolyn L. Raynor had 282 Original Medicare patients and 303 services. NPI 1114260684. 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: 13400 E Shea Blvd, Scottsdale, AZ 85259 · Directions (4 more locations)
  • Phone: (480) 301‑8000
  • Medicare: Accepts Medicare assignment
  • Hospital: Mayo Clinic Hospital
  • Group practice: Mayo Clinic Arizona
  • Medical school: Howard University College Of Medicine · graduated 2013 (13 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Gwendolyn L. Raynor, 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 Gwendolyn L. Raynor accept Medicare assignment?
Yes. Medicare's clinician data says Gwendolyn L. Raynor 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 Gwendolyn L. Raynor see?
In 2024, CMS data shows 282 Original Medicare patients and 303 services for Gwendolyn L. Raynor. This counts Original Medicare only and measures volume, not quality.
What is Gwendolyn L. Raynor's NPI number?
1114260684. 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 Gwendolyn L. Raynor, 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 patients282
Services billed to Medicare303
Different services or procedures79
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Anesthesia for x-ray or radiation therapy (01922)20 services
  2. Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)19 services
  3. Anesthesia for other procedure on upper abdomen (00790)14 services
  4. Anesthesia for procedure on small and large bowel using an endoscope (00813)13 services
  5. Anesthesia for other procedure on skin of arms, legs, and front body (00400)12 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%
  • Arthritis54%
  • Ischemic heart disease37%
  • Chronic kidney disease33%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)33%

Hospitals where Gwendolyn L. Raynor works

Medicare's Facility Affiliation Data lists Gwendolyn L. Raynor 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.

  • Mayo Clinic HospitalPhoenix, AZ · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 030103

Practice locations

Addresses where Gwendolyn L. Raynor is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Gwendolyn L. Raynor as a member of this group (CMS data updated October 2, 2026).

  • Mayo Clinic Arizona1,626 clinicians in the group

Specialties

Find other Anesthesiology doctors in Arizona →

Other anesthesiologists in Scottsdale

Clinicians with the same Medicare primary specialty in Scottsdale, AZ — not a recommendation.

All anesthesiologists in Scottsdale →

Other clinicians in Mayo Clinic Arizona

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

Clinician information

CredentialMD
Medical schoolHoward University College Of Medicine
Graduation year2013 (13 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1114260684
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