Individual provider Active NPI

James Roy Geurin, M.D.

  • Radiation Oncology Physician
  • Tulsa, OK
National Provider Identifier
1437149457
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Radiation Oncology PhysicianTaxonomy code 2085R0001X
License
18378 Issued in OK
Practice address
1923 S Utica Ave
Tulsa, OK 74104-6520
Phone
(918) 744-3496
Fax
(918) 744-3064
NPI assigned
Oct 21, 2005
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Radiation Oncology Physician 2085R0001X 18378 OK Primary

Addresses

Primary practice location

1923 S Utica Ave
Tulsa, OK 74104-6520

Mailing address

PO Box 21228
Dept 18
Tulsa, OK 74121-1228
Phone (918) 744-3496

Other identifiers 1

IdentifierTypeStateIssuer
GE519686MedicaidOK

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Radiation Oncology Consultants Inc Radiation Oncology PastSince Apr 30, 2003 Accepting new patients
Oklahoma Oncology & Hematology PC Radiation Oncology Past Accepting new patients

Organizations & group practices 2

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.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1129852800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1437149457",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 21228",
            "address_2": "DEPT 18",
            "city": "TULSA",
            "state": "OK",
            "postal_code": "741211228",
            "telephone_number": "918-744-3496",
            "fax_number": "918-744-3064"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1923 S UTICA AVE",
            "city": "TULSA",
            "state": "OK",
            "postal_code": "741046520",
            "telephone_number": "918-744-3496",
            "fax_number": "918-744-3064"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GEURIN",
        "first_name": "JAMES",
        "middle_name": "ROY",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-10-21",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "OK",
            "license": "18378",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "GE519686",
            "state": "OK"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Tulsa, OK

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.