Individual provider Active NPI

Patrick Grierson, MD

  • Medical Oncology Physician
  • Saint Louis, MO
National Provider Identifier
1720492192
Registry record updated Apr 17, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Medical Oncology PhysicianTaxonomy code 207RX0202X
License
2017020379 Issued in MO
Practice address
10 Barnes West Dr
Div Im Medical Oncology, Mob #2
Saint Louis, MO 63141-6287
Phone
(800) 647-2098
Fax
(314) 362-3192
NPI assigned
Jun 13, 2014
Last updated
Apr 17, 2025By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 17, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 2017020379 MO
Medical Oncology Physician 207RX0202X 2017020379 MO Primary

Addresses

Primary practice location

10 Barnes West Dr
Div Im Medical Oncology, Mob #2
Saint Louis, MO 63141-6287

Mailing address

PO Box 7412011
Chicago, IL 60674-2011
Phone (800) 647-2098

Other identifiers 1

IdentifierTypeStateIssuer
200063712MedicaidMO

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
I20191029000561 MO Practitioner - Medical OncologyPractitioner - Internal Medicine 5991924722 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Medical OncologyAlso: Internal Medicine
Education
Ohio State University College of Medicine, 2014
Medicare assignment
Accepts the Medicare-approved amount as payment in full
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) 747-3000

10 Hospital Dr
Saint Peters, MO 63376-1659
Phone (800) 647-2098

10 Hospital Dr Mob
2 Bjsph Siteman Cancer Center
St Peters, MO 63376-1659
Phone (800) 647-2098

11133 Dunn Rd
Saint Louis, MO 63136-6163
Phone (314) 362-7603

4500 Forest Park Ave
Saint Louis, MO 63108-2114

5201 Mid America PLZ
Saint Louis, MO 63129-0002

5225 Mid America PLZ
Saint Louis, MO 63129-0002
Phone (800) 647-2098

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

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
2017020379MOMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Washington University Past Accepting new patients
Ozarks Medical Center Past Accepting new patients

Interoperability endpoints

  • Direct secure messaging: pgrierson156043@direct.carenet.org

Organizations & group practices 3

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 7

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": "1402617600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1744848000000",
    "number": "1720492192",
    "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": "800-647-2098",
            "fax_number": "314-362-3192"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "10 BARNES WEST DR",
            "address_2": "DIV IM MEDICAL ONCOLOGY, MOB #2",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631416287",
            "telephone_number": "800-647-2098",
            "fax_number": "314-362-3192"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GRIERSON",
        "first_name": "PATRICK",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2014-06-13",
        "last_updated": "2025-04-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MO",
            "license": "2017020379",
            "primary": false
        },
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "MO",
            "license": "2017020379",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "200063712",
            "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": "10 Barnes West Dr",
            "address_2": "Div IM Medical Oncology, MOB #2",
            "city": "Saint Louis",
            "state": "MO",
            "country_code": "US",
            "postal_code": "631416287",
            "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.