Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1811535024 Individual Practitioner Female Practitioner

Katlin Johnson

Physician Assistant • Philadelphia, PA

Professional Overview & Biography Verified Profile Summary

Katlin Johnson is a registered healthcare professional specializing in Physician Assistant in Philadelphia, PA. Practice services are available at 3400 SPRUCE ST under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

3400 Spruce St
4 Silverstein

Philadelphia, PA 191044206

Telephone 2156622626
Fax 2153498195
Associated Practice Facility / Clinic

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Philadelphia, PA

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 7.9 Yrs
State Avg: 11.5 Yrs
Regional Practice Density
958 Specialists

Practicing in Philadelphia, PA (8068 Statewide)

Telehealth Adoption Rate
6.5% 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: 2026-05-08
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

State License PA MA062555

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

33 Associated Practitioners
Michael Fejka , PA-C

Physician Assistant - Medical

NPI 1134203037

Physician Assistant (Certified)

NPI 1134436645

Doctor of Medicine (M.D.)

NPI 1154357200

Doctor of Medicine (M.D.)

NPI 1235286220

Doctor of Medicine (M.D.)

Dr. Ronald Fairman , MD

Surgery - Vascular Surgery

NPI 1306873229

Doctor of Medicine (M.D.)

NPI 1316984511

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

12 Historical Events
📍
Updated Business Mailing Address May 08, 2026

Registered at 3400 SPRUCE ST, PHILADELPHIA, PA 191044238 (Tel: 2156622626)

👤
Provider Name / Credentials Updated May 08, 2026

Recorded as KATLIN JOHNSON

📍
Updated Practice Location March 10, 2026

Registered at 3400 SPRUCE ST, 4 SILVERSTEIN, PHILADELPHIA, PA 191044206 (Tel: 2156622626)

📍
Updated Business Mailing Address March 10, 2026

Registered at 3400 SPRUCE ST, 4TH FL RHOADS, PHILADELPHIA, PA 191041401 (Tel: 2156622626)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) March 10, 2026

Physician Assistant (License #MA062555 in PA)

📍
Updated Practice Location January 23, 2022

Registered at 501 S 54TH ST, PHILADELPHIA, PA 191431900 (Tel: 2153014783)

NPI Profile Active December 18, 2019

NPI status registered as active in NPPES database

📍
Updated Practice Location December 18, 2019

Registered at 535 E 70TH ST, NEW YORK, NY 100214823 (Tel: 9084474105)

📍
Updated Business Mailing Address December 18, 2019

Registered at 8 BARNSTABLE RD, BERKELEY HEIGHTS, NJ 079221748

👤
Provider Name / Credentials Updated December 18, 2019

Recorded as KATLIN DLUGOSZ

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) December 18, 2019

Physician Assistant

🟢
Initial NPI Registration & Enumeration December 18, 2019

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

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NPI Administrative Meta

NPI Number: 1811535024
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: December 18, 2019
Last Update: May 08, 2026
Sole Proprietor: No

Mailing Address

3400 Spruce St

Philadelphia, PA 191044238

Phone: 2156622626

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.