Active NPI
John Clayton Clohisy Jr., MD
- Orthopaedic Surgery of the Spine Physician
- Saint Louis, MO
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Orthopaedic Surgery of the Spine Physician
- License
- 2023014781
- Practice address
- 4921 Parkview PL
Dept Orthopaedic Surgery, Ste 6a/6B/12a
Saint Louis, MO 63110-1032 - Phone
- (314) 514-3500
- Fax
- (314) 878-7678
- NPI assigned
- Jun 12, 2017
- 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 |
|---|---|---|---|---|
| Orthopaedic Surgery of the Spine Physician | 207XS0117X | 2023014781 | MO | Primary |
Addresses
Primary practice location
4921 Parkview PL
Dept Orthopaedic Surgery, Ste 6a/6B/12a
Saint Louis, MO 63110-1032
Mailing address
PO Box 7412011
Chicago, IL 60674-2011
Phone (314) 514-3500
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 200061628 | Medicaid | MO |
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: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Orthopedic Surgery
- Education
- University of Missouri, Columbia School of Medicine, 2017
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
1 Barnes Jew Hosp PLZ
Saint Louis, MO 63110-1003
Phone (314) 514-3500
1044 N Mason Rd
Suite 110/210
Saint Louis, MO 63141-6310
Phone (314) 514-3500
12634 Olive Blvd
Saint Louis, MO 63141-6337
Phone (314) 996-8080
4921 Parkview PL
Saint Louis, MO 63110-1032
Phone (314) 514-3500
5201 Mid America PLZ
Suite 1500
Saint Louis, MO 63129-0002
Phone (314) 514-3500
Hospital & facility affiliations
- Barnes Jewish Hospital
- Barnes-Jewish West County Hospital
- Missouri Baptist Medical Center
- Barnes-Jewish St Peters Hospital
- Progress West Hospital
- SSM Health Rehabilitation Hospital
Merit-based Incentive Payment System (MIPS)
- Final score
- 84.2 of 100
- Quality
- 71.6
- Promoting interoperability
- 100
- Improvement activities
- 40
- Cost
- 75.75
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Spinal fusion | 163 |
| Laminectomy or laminotomy (partial removal of spine bones) | 34 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Washington University | Current | Accepting new patients | |
| Washington University | Current | Accepting new patients | |
| Washington University | Past | Accepting new patients | |
| Barnes Jewish Hospital | Past | Accepting new patients | |
| Gibson Community Hospital Association | Past | Accepting new patients |
Locations
5201 Mid America Plz
Ste 1500
Saint Louis, MO 63129
Phone (314) 286-2900
4921 Parkview Pl
Ste 6A6B12A
Saint Louis, MO 63110
Phone (314) 747-2551
660 S Euclid Ave
Stop 822100871800
Saint Louis, MO 63110
1044 N Mason Rd
Ste 110210
Saint Louis, MO 63141
4921 Parkview Pl
Ste A
Saint Louis, MO 63110
Phone (314) 362-7145
12634 Olive Blvd
Saint Louis, MO 63141
Phone (314) 434-0600
660 S Euclid Ave
#8233
Saint Louis, MO 63110
Phone (314) 747-2555
1 Barnes Jewish Hospital Plz
Saint Louis, MO 63110
Phone (314) 362-1700
Interoperability endpoints
- https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/
Organizations & group practices 5
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.
-
- Multi-Specialty Clinic/Center
- Saint Louis, MO
- NPI 1679516033
-
- Multi-Specialty Clinic/Center
- Saint Louis, MO
- NPI 1962442475
-
- General Acute Care Hospital
- Saint Louis, MO
- NPI 1649299827
-
- Multi-Specialty Clinic/Center
- Saint Louis, MO
- NPI 1134169568
-
- Critical Access Hospital
- Gibson City, IL
- NPI 1114935681
Hospital & facility affiliations 6
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Saint Louis, MO
- NPI 1649299827
-
- General Acute Care Hospital
- Saint Peters, MO
- NPI 1144238908
-
- General Acute Care Hospital
- Saint Louis, MO
- NPI 1831107895
-
- General Acute Care Hospital
- Saint Louis, MO
- NPI 1487663506
-
- General Acute Care Hospital
- O Fallon, MO
- NPI 1508938044
-
- Rehabilitation Hospital
- Richmond Heights, MO
- NPI 1659511988
Inpatient rehabilitation facility
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1497225600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1773705600000",
"number": "1285164319",
"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": "314-514-3500",
"fax_number": "314-878-7678"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "4921 PARKVIEW PL",
"address_2": "DEPT ORTHOPAEDIC SURGERY, STE 6A/6B/12A",
"city": "SAINT LOUIS",
"state": "MO",
"postal_code": "631101032",
"telephone_number": "314-514-3500",
"fax_number": "314-878-7678"
}
],
"practiceLocations": [],
"basic": {
"last_name": "CLOHISY",
"first_name": "JOHN",
"middle_name": "CLAYTON",
"name_prefix": "Dr.",
"name_suffix": "Jr.",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2017-06-12",
"last_updated": "2026-03-17",
"certification_date": "2022-07-27",
"status": "A"
},
"taxonomies": [
{
"code": "207XS0117X",
"taxonomy_group": "",
"desc": "Orthopaedic Surgery, Orthopaedic Surgery of the Spine",
"state": "MO",
"license": "2023014781",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "200061628",
"state": "MO"
}
],
"endpoints": [
{
"endpointType": "FHIR",
"endpointTypeDescription": "FHIR URL",
"endpoint": "https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/",
"affiliation": "Y",
"affiliationName": "Washington University",
"address_1": "4921 Parkview Pl",
"address_2": "Dept Orthopaedic Surgery, Ste 6A/6B/12A",
"city": "Saint Louis",
"state": "MO",
"country_code": "US",
"postal_code": "631101032",
"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 Mar 17, 2026; 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.