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Active NPI 1083375190 Individual Practitioner Male Practitioner

Stephen Patrick Simpson , PA

Physician Assistant • Saint Louis, MO

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Stephen Simpson, PA is a certified Physician Assistant practicing in Saint Louis, MO. With approximately 4 years of clinical experience since completing medical education in 2022, Stephen Simpson delivers high-quality medical care to the local community at 1 BARNES JEWISH HOSPITAL PLZ.

Stephen Simpson maintains professional affiliations with Washington University, Missouri Baptist Medical Center and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include insertion of needle into vein, patient 3 years or older, insertion of central venous catheter for infusion, patient 5 years or older, critical care, first. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1 Barnes Jewish Hospital Plz
Dept Neurological Surgery

Saint Louis, MO 631101003

Telephone 3143623577
Fax 3143622107
Associated Practice Facility / Clinic
🏢 Midwest Lithotripsy, Llc Facility NPI 1831198639

Medicare Profile & Education

Medical School

Other

Graduation Year

2022

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Saint Louis, MO

Rising Specialist (<5 Yrs)
Practitioner Clinical Experience
4 Yrs -4.7 yrs vs City Avg
City Avg: 8.7 Yrs
State Avg: 10.3 Yrs
Regional Practice Density
501 Specialists

Practicing in Saint Louis, MO (1802 Statewide)

Telehealth Adoption Rate
12.6% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount
77.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Simpson (4 Years) 4 Yrs
Saint Louis Specialty Average (8.7 Years) 8.7 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
36410 Insertion of needle into vein, patient 3 years or older
84 77 $76.00 $7.31
36569 Insertion of central venous catheter for infusion, patient 5 years or older
35 35 $467.00 $76.62
99291 Critical care, first 30-74 minutes
29 29 $776.66 $172.92
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes
21 20 $213.00 $96.42
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
13 12 $150.00 $60.30
36556 Insertion of non-tunneled central venous tube for infusion (5 years or older)
12 12 $466.00 $68.42

Medical Specialties & State Licenses

CMS Verified: 2023-03-22
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

State License MO 2023006776

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.

Hospital & Practice Group Affiliations

Missouri Baptist Medical Center

3015 N Ballas Rd, Saint Louis, MO 631312329

Phone: 3149965000

Washington University

100 Entrance Way, Saint Peters, MO 633761645

Phone: 3639167140

Practice Associates & Co-Workers

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

40 Associated Practitioners
Jennifer Jacobi , PNP

Nurse Practitioner - Pediatrics

NPI 1003383324

Pediatric Nurse Practitioner

Dr. Ralph Dacey , MD

Neurological Surgery

NPI 1003833567

Doctor of Medicine (M.D.)

Dr. Brenton Pennicooke , MD

Neurological Surgery

NPI 1093093064

Doctor of Medicine (M.D.)

Dr. Timothy Woodiwiss , MD

Neurological Surgery

NPI 1093376634

Doctor of Medicine (M.D.)

Kayla Jarrett , PA

Physician Assistant

NPI 1114763158

Physician Assistant

Dr. Paul Santiago , MD

Neurological Surgery

NPI 1114945540

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 Practice Location June 06, 2025

Registered at 1 BARNES JEWISH HOSPITAL PLZ, DEPT NEUROLOGICAL SURGERY, SAINT LOUIS, MO 631101003 (Tel: 3143623577)

📍
Updated Business Mailing Address June 06, 2025

Registered at PO BOX 7412011, CHICAGO, IL 606742011 (Tel: 3143623577)

👤
Provider Name / Credentials Updated June 06, 2025

Recorded as STEPHEN SIMPSON, PA

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) June 06, 2025

Physician Assistant (License #2023006776 in MO)

📍
Updated Practice Location March 22, 2023

Registered at 3015 N BALLAS RD, SAINT LOUIS, MO 631312329 (Tel: 3149965000)

📍
Updated Business Mailing Address March 22, 2023

Registered at 3015 N BALLAS RD, SAINT LOUIS, MO 631312329 (Tel: 3149965000)

NPI Profile Active January 02, 2022

NPI status registered as active in NPPES database

📍
Updated Practice Location January 02, 2022

Registered at 3437 CAROLINE ST, SAINT LOUIS, MO 631041111 (Tel: 3149778639)

📍
Updated Business Mailing Address January 02, 2022

Registered at 708 WOODLAND RIDGE DR, SAINT PETERS, MO 633761785 (Tel: 3147804167)

👤
Provider Name / Credentials Updated January 02, 2022

Recorded as STEPHEN SIMPSON

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) January 02, 2022

Physician Assistant

🟢
Initial NPI Registration & Enumeration January 02, 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: 1083375190
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: January 02, 2022
Last Update: June 06, 2025
Sole Proprietor: No

Mailing Address

Po Box 7412011

Chicago, IL 606742011

Phone: 3143623577

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.