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Active NPI 1982352852 Individual Practitioner Female Practitioner

Hayley Ilene Risse , PA

Physician Assistant • Fairfield, CA

Professional Overview & Biography Verified Profile Summary

Hayley Risse, PA is a registered healthcare professional specializing in Physician Assistant in Fairfield, CA. Practice services are available at 1860 PENNSYLVANIA AVE STE 110 under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

1860 Pennsylvania Ave Ste 110

Fairfield, CA 945333550

Telephone 7076464692
Fax 7076464867

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Fairfield, CA

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 12.5 Yrs
State Avg: 11.5 Yrs
Regional Practice Density
37 Specialists

Practicing in Fairfield, CA (14617 Statewide)

Telehealth Adoption Rate
16.2% 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: 2026-07-24
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

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

1 Associated Practitioners
Dr. Teodor Duro , MD

Internal Medicine - Endocrinology, Diabetes & Metabolism

NPI 1780180315

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

9 Historical Events
📍
Updated Practice Location July 24, 2026

Registered at 1860 PENNSYLVANIA AVE STE 110, FAIRFIELD, CA 945333550 (Tel: 7076464692)

👤
Provider Name / Credentials Updated June 13, 2024

Recorded as HAYLEY RISSE, PA

📍
Updated Practice Location September 05, 2023

Registered at 1620 PENNSYLVANIA AVE STE B, FAIRFIELD, CA 945333509 (Tel: 9256854224)

NPI Profile Active March 10, 2022

NPI status registered as active in NPPES database

📍
Updated Practice Location March 10, 2022

Registered at 2970 HILLTOP MALL RD STE 203, RICHMOND, CA 948061949 (Tel: 5102228000)

📍
Updated Business Mailing Address March 10, 2022

Registered at 782 BRAYDON PL UNIT 203, NAPA, CA 945593070

👤
Provider Name / Credentials Updated March 10, 2022

Recorded as HAYLEY RAPPOPORT, PA

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) March 10, 2022

Physician Assistant

🟢
Initial NPI Registration & Enumeration March 10, 2022

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: 1982352852
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 10, 2022
Last Update: July 24, 2026
Sole Proprietor: No

Mailing Address

782 Braydon Pl Unit 203

Napa, CA 945593070

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.