Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1023954062 Individual Practitioner Male Practitioner

William Joel Brown

Physician Assistant • Peoria, AZ

Professional Overview & Biography Verified Profile Summary

William Brown is a registered healthcare professional specializing in Physician Assistant in Peoria, AZ. Practice services are available at 9171 W THUNDERBIRD RD under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

9171 W Thunderbird Rd

Peoria, AZ 853814872

Telephone 6238770100
Fax 6233288713
Associated Practice Facility / Clinic
🏢 Peoria Urgent Care Center,llc Facility NPI 1811248768

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Peoria, AZ

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 10.4 Yrs
State Avg: 12.5 Yrs
Regional Practice Density
108 Specialists

Practicing in Peoria, AZ (3711 Statewide)

Telehealth Adoption Rate
13.9% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

CMS Verified: 2026-07-09
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

State License AZ 11848

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Practice Associates & Co-Workers

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

12 Associated Practitioners
Colleen Bonner , FNP-C

Nurse Practitioner - Family

NPI 1154762888

Family Nurse Practitioner (Certified)

Vanessa Workinger , FNP

Nurse Practitioner - Family

NPI 1194427344

Family Nurse Practitioner

Dr. Jose Pierrend , MD

Internal Medicine

NPI 1518950161

Doctor of Medicine (M.D.)

Kathleen Nicholas , FNP-C

Nurse Practitioner - Family

NPI 1528891488

Family Nurse Practitioner (Certified)

Theresa Eblin , FNP

Nurse Practitioner - Family

NPI 1568036812

Family Nurse Practitioner

Dr. Girolamo Arpino , DO

Internal Medicine

NPI 1578710265

Doctor of Osteopathic Medicine (D.O.)

Career & Practice History Timeline

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

9 Historical Events
📍
Updated Practice Location July 09, 2026

Registered at 9171 W THUNDERBIRD RD, PEORIA, AZ 853814872 (Tel: 6238770100)

📍
Updated Business Mailing Address July 09, 2026

Registered at 9171 W THUNDERBIRD RD, PEORIA, AZ 853814872 (Tel: 6238770100)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 09, 2026

Physician Assistant (License #11848 in AZ)

NPI Profile Active April 23, 2026

NPI status registered as active in NPPES database

📍
Updated Practice Location April 23, 2026

Registered at 1355 N SCOTTSDALE RD STE 240, SCOTTSDALE, AZ 852573594 (Tel: 4807575931)

📍
Updated Business Mailing Address April 23, 2026

Registered at 1355 N SCOTTSDALE RD STE 240, SCOTTSDALE, AZ 852573594

👤
Provider Name / Credentials Updated April 23, 2026

Recorded as WILLIAM BROWN

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) April 23, 2026

Physician Assistant

🟢
Initial NPI Registration & Enumeration April 23, 2026

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: 1023954062
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 23, 2026
Last Update: July 09, 2026
Sole Proprietor: No

Mailing Address

9171 W Thunderbird Rd

Peoria, AZ 853814872

Phone: 6238770100

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.