Active NPI
Stephen Patrick Simpson, PA
- Physician Assistant
- Saint Louis, MO
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Physician Assistant
- License
- 2023006776
- Practice address
- 1 Barnes Jewish Hospital PLZ
Dept Neurological Surgery
Saint Louis, MO 63110-1003 - Phone
- (314) 362-3577
- Fax
- (314) 362-2107
- NPI assigned
- Jan 2, 2022
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Physician Assistant | 363A00000X | 2023006776 | MO | Primary |
Addresses
Primary practice location
1 Barnes Jewish Hospital PLZ
Dept Neurological Surgery
Saint Louis, MO 63110-1003
Mailing address
PO Box 7412011
Chicago, IL 60674-2011
Phone (314) 362-3577
Electronic endpoints 1
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| FHIR URL | https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/ | Washington University |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MO
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: No
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Physician Assistant
- Education
- Other, 2022
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
100 Entrance Way
Saint Peters, MO 63376-1645
Phone (363) 916-7140
3015 N Ballas Rd
Saint Louis, MO 63131-2329
Phone (314) 996-5000
Hospital & facility affiliations
- Missouri Baptist Medical Center
- Saint Francis Medical Center
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Physician Assistant
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 2023006776 | MO | MD | Physician Assistant |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Washington University | Current | Accepting new patients | |
| Washington University | Current | Accepting new patients | |
| Missouri Baptist Medical Center | Physician Assistant | Current | Accepting new patients |
| Missouri Baptist Medical Center | Current | Accepting new patients | |
| Parkway Pathology Group, Inc. | Current | Accepting new patients | |
| Washington University | Past | Accepting new patients | |
| Ozarks Medical Center | Past | Accepting new patients |
Locations
4921 Parkview Pl
Ste 6B6C
Saint Louis, MO 63110
1 Barnes Jewish Hospital Plz
Saint Louis, MO 63110
Phone (314) 362-1700
3009 N Ballas Rd
Ste 142A
Saint Louis, MO 63131
Phone (314) 993-4949
1 Barnes Hospital Plz
Saint Louis, MO 63110
Phone (314) 362-9170
12634 Olive Blvd
Saint Louis, MO 63141
Phone (314) 434-0600
3015 N Ballas Rd
Saint Louis, MO 63131
Phone (314) 996-5330
100 Entrance Way
Saint Peters, MO 63376
Phone (363) 916-7140
Interoperability endpoints
- https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/
Organizations & group practices 8
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Physician Assistant
- Saint Louis, MO
- NPI 1558370528
-
- Multi-Specialty Clinic/Center
- Saint Louis, MO
- NPI 1538100565
-
- Critical Care Medicine (Internal Medicine) Physician
- Saint Louis, MO
- NPI 1730119421
-
- Anesthesiology Physician
- Saint Louis, MO
- NPI 1609658905
-
- Anatomic Pathology & Clinical Pathology Physician
- St. Louis, MO
- NPI 1245206960
-
- Multi-Specialty Clinic/Center
- Saint Louis, MO
- NPI 1962442475
-
- General Acute Care Hospital
- West Plains, MO
- NPI 1831115641
-
- Multi-Specialty Clinic/Center
- Saint Louis, MO
- NPI 1134169568
Hospital & facility affiliations 3
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Saint Louis, MO
- NPI 1487663506
-
- General Acute Care Hospital
- Cape Girardeau, MO
- NPI 1467412726
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1641081600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1749168000000",
"number": "1083375190",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 7412011",
"city": "CHICAGO",
"state": "IL",
"postal_code": "606742011",
"telephone_number": "314-362-3577",
"fax_number": "314-362-2107"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1 BARNES JEWISH HOSPITAL PLZ",
"address_2": "DEPT NEUROLOGICAL SURGERY",
"city": "SAINT LOUIS",
"state": "MO",
"postal_code": "631101003",
"telephone_number": "314-362-3577",
"fax_number": "314-362-2107"
}
],
"practiceLocations": [],
"basic": {
"last_name": "SIMPSON",
"first_name": "STEPHEN",
"middle_name": "PATRICK",
"name_prefix": "Mr.",
"credential": "PA",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2022-01-02",
"last_updated": "2025-06-06",
"certification_date": "2023-03-22",
"status": "A"
},
"taxonomies": [
{
"code": "363A00000X",
"taxonomy_group": "",
"desc": "Physician Assistant",
"state": "MO",
"license": "2023006776",
"primary": true
}
],
"identifiers": [],
"endpoints": [
{
"endpointType": "FHIR",
"endpointTypeDescription": "FHIR URL",
"endpoint": "https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/",
"affiliation": "Y",
"affiliationName": "Washington University",
"address_1": "1 Barnes Jewish Hospital Plz",
"address_2": "Dept Neurological Surgery",
"city": "Saint Louis",
"state": "MO",
"country_code": "US",
"postal_code": "631101003",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": []
}
Other providers in Saint Louis, MO
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 6, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.