Active NPI
James Roy Geurin, M.D.
- Radiation Oncology Physician
- Tulsa, OK
National Provider Identifier
1437149457
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Radiation Oncology Physician
- License
- 18378
- 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
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 |
|---|---|---|---|---|
| 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
| Identifier | Type | State | Issuer |
|---|---|---|---|
| GE519686 | Medicaid | OK |
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
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Radiation Oncology Consultants Inc | Radiation Oncology | Past | 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.
-
- Hematology & Oncology Physician
- Tulsa, OK
- NPI 1295785392
Radiation Oncology
-
- Radiation Oncology Physician
- Tulsa, OK
- NPI 1881703619
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.