Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1669256673 Individual Practitioner Male Practitioner

Ryan Brown , PA

Physician Assistant • Orange, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Ryan Brown, PA is a certified Physician Assistant practicing in Orange, CA. With approximately 3 years of clinical experience since completing medical education in 2023, Ryan Brown delivers high-quality medical care to the local community at 101 THE CITY DR S.

Ryan Brown maintains professional affiliations with Uci Department Of Urology, University Surgeons Of Orange A Medical Group, Regents Of The University Of California and accepts Medicare assignment.

Practice Location & Contact Primary Location

Practice Address

101 The City Dr S

Orange, CA 928683201

Telephone 7144567890
Associated Practice Facility / Clinic
🏢 The Department Of Psychiatry Facility NPI 1831159003

Medicare Profile & Education

Medical School

Other

Graduation Year

2023

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Orange, CA

Rising Specialist (<5 Yrs)
Practitioner Clinical Experience
3 Yrs -6.0 yrs vs City Avg
City Avg: 9.0 Yrs
State Avg: 11.5 Yrs
Regional Practice Density
181 Specialists

Practicing in Orange, CA (14617 Statewide)

Telehealth Adoption Rate
16.6% 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. Brown (3 Years) 3 Yrs
Orange Specialty Average (9.0 Years) 9.0 Yrs

Medical Specialties & State Licenses

CMS Verified: 2025-08-18
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

State License CA PA66727

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.

Physician Assistant - Medical

NUCC Taxonomy Code: 363AM0700X

State License CO PA.0008393

Definition to come...

Hospital & Practice Group Affiliations

Regents Of The University Of California

101 The City Dr S, Orange, CA 928683201

Phone: 7144567004

University Surgeons Of Orange A Medical Group

101 The City Dr S, Orange, CA 928683201

Phone: 7146345549

Uci Department Of Urology

101 The City Dr S, Orange, CA 928683201

Phone: 7144566054

Practice Associates & Co-Workers

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

40 Associated Practitioners
Dr. Isabel Clark , MD

Surgery - Trauma Surgery

NPI 1003262510

Doctor of Medicine (M.D.)

Dr. Antonio Halais Frangieh , MD, MPH

Internal Medicine - Interventional Cardiology

NPI 1003558420

Doctor of Medicine (M.D.), Master of Public Health

Douglas Roszell , RN

Registered Nurse - Administrator

NPI 1003788613

Registered Nurse

Dr. Mark Wylam , MD

Internal Medicine - Critical Care Medicine

NPI 1003880865

Doctor of Medicine (M.D.)

Evan Shih

Internal Medicine

NPI 1013440320
Toyen Yoshizuka , PA-C

Physician Assistant

NPI 1013510825

Physician Assistant (Certified)

Career & Practice History Timeline

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

12 Historical Events
📍
Updated Practice Location August 18, 2025

Registered at 101 THE CITY DR S, ORANGE, CA 928683201 (Tel: 7144567890)

📍
Updated Business Mailing Address August 18, 2025

Registered at 101 THE CITY DR S, ORANGE, CA 928683201

📍
Updated Practice Location January 29, 2024

Registered at 12605 E 16TH AVE, AURORA, CO 800452545 (Tel: 7208480000)

📍
Updated Business Mailing Address January 29, 2024

Registered at PO BOX 110429, AURORA, CO 800420429

👤
Provider Name / Credentials Updated January 29, 2024

Recorded as RYAN BROWN, PA

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) January 29, 2024

Physician Assistant (License #PA.0008393 in CO)

NPI Profile Active August 21, 2023

NPI status registered as active in NPPES database

📍
Updated Practice Location August 21, 2023

Registered at 739 PAULARINO AVE APT D104, COSTA MESA, CA 926262956 (Tel: 8587767046)

📍
Updated Business Mailing Address August 21, 2023

Registered at 739 PAULARINO AVE APT D104, COSTA MESA, CA 926262956 (Tel: 8587767046)

👤
Provider Name / Credentials Updated August 21, 2023

Recorded as RYAN BROWN

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) August 21, 2023

Student in an Organized Health Care Education/Training Program

🟢
Initial NPI Registration & Enumeration August 21, 2023

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: 1669256673
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: August 21, 2023
Last Update: August 18, 2025
Sole Proprietor: No

Mailing Address

101 The City Dr S

Orange, CA 928683201

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.