Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Gwen M Grimsby, MD

Individual provider Pediatric Urology Physician · NPI 1740448703

Dr. Gwen M Grimsby, MD is a Pediatric Medicine in Phoenix, Arizona. Graduated from Medical College of Wisconsin in 2008, 18 years ago. Practices with Phoenix Children's Hospital, a 430-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Arizona.

Years since qualifying
18
Trained at
Medical College of Wisconsin
Licensed in
AZ
In the registry since
2008
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

5779 E Mayo Blvd
Phoenix, AZ 85054-4502
Phone: (480) 301-8000
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 5130 N Us Highway 89, Flagstaff, AZ 86004-2837 — (928) 773-2054

Specialties & licences

Urology Physician (primary) Taxonomy 208800000X · Licence 42236 (AZ)
Pediatric Urology Physician Taxonomy 2088P0231X · Licence 42236 (AZ)

Record details

NPI number1740448703
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 27, 2008
Last updated in NPPESFebruary 6, 2025
Certification dateFebruary 6, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPEDIATRIC MEDICINE
Medical schoolMEDICAL COLLEGE OF WISCONSIN
Graduated 2008 (18 years in practice)
Group practice Phoenix Children'S Hospital — 430 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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