Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1376944249 Individual Practitioner Female Practitioner

Margaret Thayer , PA-C

Physician Assistant • Phoenix, AZ

Professional Overview & Biography Verified Profile Summary

Margaret Thayer, PA-C is a registered healthcare professional specializing in Physician Assistant in Phoenix, AZ. Practice services are available at 3522 N 3RD AVE under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

3522 N 3rd Ave

Phoenix, AZ 850133903

Telephone 6027767676
Fax 6027763002
Associated Practice Facility / Clinic
🏢 Circle The City Facility NPI 1487033247

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Phoenix, AZ

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 10.1 Yrs
State Avg: 12.5 Yrs
Regional Practice Density
938 Specialists

Practicing in Phoenix, AZ (3711 Statewide)

Telehealth Adoption Rate
14.2% 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: 2025-09-23
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

State License AZ 5783

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 AZ 5783

Definition to come...

Nurse Practitioner - Psychiatric/Mental Health

NUCC Taxonomy Code: 363LP0808X

State License AZ 5783

Definition to come...

Practice Associates & Co-Workers

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

7 Associated Practitioners
Dr. Kimberly Le , MD

Family Medicine

NPI 1063776284

Doctor of Medicine (M.D.)

Heidi Howell

Social Worker - Clinical

NPI 1336564178
Justine Sperber , MSW, LCSW

Counselor - Mental Health

NPI 1396182283

Master of Social Work, Licensed Clinical Social Worker

Dr. Lori Holleran , PhD

Psychologist - Clinical

NPI 1669018933

Doctor of Philosophy (Ph.D.)

Nicholas Clark , PA-C

Physician Assistant

NPI 1679367288

Physician Assistant (Certified)

Katelyn Norman , FNP-C

Nurse Practitioner - Family

NPI 1689414955

Family Nurse Practitioner (Certified)

Career & Practice History Timeline

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

12 Historical Events
📍
Updated Business Mailing Address September 23, 2025

Registered at 2390 E CAMELBACK RD, PHOENIX, AZ 850163448 (Tel: 6028343913)

NPI Profile Active June 29, 2017

NPI status registered as active in NPPES database

📍
Updated Practice Location June 29, 2017

Registered at 3522 N 3RD AVE, PHOENIX, AZ 850133903 (Tel: 6027767676)

📍
Updated Business Mailing Address June 29, 2017

Registered at 3522 N 3RD AVE, PHOENIX, AZ 850133903 (Tel: 6027767676)

👤
Provider Name / Credentials Updated June 29, 2017

Recorded as MARGARET THAYER, PA-C

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) June 29, 2017

Physician Assistant (License #5783 in AZ)

NPI Profile Active October 22, 2015

NPI status registered as active in NPPES database

📍
Updated Practice Location October 22, 2015

Registered at 3522 N 3RD AVE, PHOENIX, AZ 850133903 (Tel: 6027767676)

📍
Updated Business Mailing Address October 22, 2015

Registered at 3522 N 3RD AVE, PHOENIX, AZ 850133903 (Tel: 6027767676)

👤
Provider Name / Credentials Updated October 22, 2015

Recorded as MARGARET LEONARD RIVERA, PA-C

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) October 22, 2015

Physician Assistant (License #5783 in AZ)

🟢
Initial NPI Registration & Enumeration September 10, 2014

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: 1376944249
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: September 10, 2014
Last Update: September 23, 2025
Sole Proprietor: No

Mailing Address

2390 E Camelback Rd

Phoenix, AZ 850163448

Phone: 6028343913

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.