Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1740448703 Individual Practitioner Female Practitioner

Dr. Gwen M Grimsby , MD

Urology • Phoenix, AZ

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Gwen Grimsby, MD is a certified Urology practicing in Phoenix, AZ. With approximately 18 years of clinical experience since graduating from Medical College Of Wisconsin in 2008, Dr. Grimsby delivers high-quality medical care to the local community at 5779 E MAYO BLVD.

Dr. Grimsby is affiliated with Phoenix Children'S Hospital and accepts Medicare assignment.

Practice Location & Contact Primary Location

Practice Address

5779 E Mayo Blvd

Phoenix, AZ 850544502

Telephone 4803018000
Associated Practice Facility / Clinic
🏢 Mayo Clinic Arizona Facility NPI 1487663332

Medicare Profile & Education

Medical School

Medical College Of Wisconsin

Graduation Year

2008

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Urology in Phoenix, AZ

Established Specialist (10-20 Yrs)
Practitioner Clinical Experience
18 Yrs -7.8 yrs vs City Avg
City Avg: 25.8 Yrs
State Avg: 29.5 Yrs
Regional Practice Density
68 Specialists

Practicing in Phoenix, AZ (295 Statewide)

Telehealth Adoption Rate
32.4% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Grimsby (18 Years) 18 Yrs
Phoenix Specialty Average (25.8 Years) 25.8 Yrs

Medical Specialties & State Licenses

CMS Verified: 2025-02-06
Urology Primary Specialty

NUCC Taxonomy Code: 208800000X

State License AZ 42236

A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.

Urology - Pediatric Urology

NUCC Taxonomy Code: 2088P0231X

State License AZ 42236

Surgeons who can diagnose, treat, and manage children's urinary and genital problems. A pediatric urologist devotes a minimum of 50% of his or her practice to the urologic problems of infants, children, and adolescents. Pediatric urologists generally provide the following services: the evaluation and management of voiding disorders; vesicoureteral reflux, and urinary tract infections that require surgery; surgical reconstruction of the urinary tract (kidneys, ureters, and bladder) including genital abnormalities, hypospadias, and intersex conditions; surgery for groin conditions in childhood and adolescence (undescended testes, hydrocele/hernia, varicocele).

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
450344 (AZ)

Hospital & Practice Group Affiliations

Phoenix Children's Hospital

1919 E Thomas Rd, Phoenix, AZ 850167710

Phone: 6029330930

Phoenix Children's Hospital

1919 E Thomas Rd, Phoenix, AZ 850167710

Phoenix Children's Hospital

1919 E Thomas Rd, Phoenix, AZ 850167710

Phone: 6029330930

Secondary Practice Locations

5130 N Us Highway 89

Flagstaff, AZ 860042837

Phone: 9287732054

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

40 Associated Practitioners
Dr. Amitkumar Mehta , MD

Internal Medicine - Hematology & Oncology

NPI 1003122573

Doctor of Medicine (M.D.)

Dr. Debjit Saha , MBBS

Internal Medicine - Critical Care Medicine

NPI 1003213364

Bachelor of Medicine, Bachelor of Surgery (M.B.B.S.)

Dr. Michal Reid , MD

Internal Medicine - Pulmonary Disease

NPI 1003290610

Doctor of Medicine (M.D.)

NPI 1003290867

Doctor of Medicine (M.D.), Doctor of Philosophy (Ph.D.)

Brett Tolpa , CRNA

Nurse Anesthetist, Certified Registered

NPI 1003332982

Certified Registered Nurse Anesthetist

Gina Munson , CRNA

Nurse Anesthetist, Certified Registered

NPI 1003353129

Certified Registered Nurse Anesthetist

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

7 Historical Events
🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) February 06, 2025

Urology (License #42236 in AZ)

NPI Profile Active October 15, 2009

NPI status registered as active in NPPES database

📍
Updated Practice Location October 15, 2009

Registered at 5779 E MAYO BLVD, PHOENIX, AZ 850544502 (Tel: 4803018000)

📍
Updated Business Mailing Address October 15, 2009

Registered at 5779 E MAYO BLVD, PHOENIX, AZ 850544502 (Tel: 4803018000)

👤
Provider Name / Credentials Updated October 15, 2009

Recorded as GWEN GRIMSBY, M.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) October 15, 2009

Urology (License #42236 in AZ)

🟢
Initial NPI Registration & Enumeration May 27, 2008

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1740448703
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: May 27, 2008
Last Update: February 06, 2025
Sole Proprietor: No

Mailing Address

5779 E Mayo Blvd

Phoenix, AZ 850544502

Phone: 4803018000

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.