Individual provider Active NPI

John Clayton Clohisy Jr., MD

  • Orthopaedic Surgery of the Spine Physician
  • Saint Louis, MO
National Provider Identifier
1285164319
Registry record updated Mar 17, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Orthopaedic Surgery of the Spine PhysicianTaxonomy code 207XS0117X
License
2023014781 Issued in MO
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

Updated by the provider on Mar 17, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
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

IdentifierTypeStateIssuer
200061628MedicaidMO

Electronic endpoints 1

TypeEndpointUseAffiliation
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
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20230905000180 MO Practitioner - Orthopedic SurgeryPractitioner - Other (Physician) 7214209055 Reassigns benefits to 1 organization

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
Washington UniversityGroup PAC ID 9830008770, 2,968 clinicians

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

Merit-based Incentive Payment System (MIPS)

Final score
84.2 of 100Reported as group
Quality
71.6
Promoting interoperability
100
Improvement activities
40
Cost
75.75

Procedures performed for Medicare patients

ProcedureNumber of procedures
Spinal fusion163
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

OrganizationSpecialtyStatusNew patients
Washington University CurrentSince Sep 1, 2023 Accepting new patients
Washington University CurrentSince Sep 1, 2023 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

  • FHIR API: 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.

Hospital & facility affiliations 6

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

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

Verify at the official NPI Registry.