HealthCareAtlasUSA

This site republishes official CMS/Medicare Care Compare data. It is not medical advice and does not recommend any specific hospital or treatment — for medical decisions, talk to a doctor.

Doctors / AZ

GREGORY L UMPHREY, MD

PHYSICAL MEDICINE AND REHABILITATION

Medical school: HOWARD UNIVERSITY COLLEGE OF MEDICINE

Graduated: 2002

NPI: 1366415515

Practice Locations (6)

MAYO CLINIC ARIZONA

5701 E MAYO BLVD

PHOENIX, AZ 850544502

4803424200

MAYO CLINIC ARIZONA

5777 E MAYO BLVD

PHOENIX, AZ 850544502

MAYO CLINIC ARIZONA

5777 E MAYO BLVD, MAYO CLINIC HOSPITAL

PHOENIX, AZ 850544502

8006030558

MAYO CLINIC ARIZONA

5779 E MAYO BLVD, SPECIALITY BUILDING

PHOENIX, AZ 850544502

4803018000

MAYO CLINIC ARIZONA

13400 E SHEA BLVD

SCOTTSDALE, AZ 852595404

4803018000

MAYO CLINIC ARIZONA

58 S RIVER DR, SUITE 160

TEMPE, AZ 852883770

4805742900

Source: CMS National Downloadable File, September 2026.

GREGORY UMPHREY, MD | HealthCareAtlasUSA