Organization Active NPI

Radiation Specialists of Oklahoma, PLLC

  • Radiation Oncology Physician
  • Tulsa, OK
National Provider Identifier
1740144369
Registry record updated Dec 10, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Radiation Oncology PhysicianTaxonomy code 2085R0001X
Legal business name
RADIATION SPECIALISTS OF OKLAHOMA, PLLC
Practice address
11212 E 48TH St
Tulsa, OK 74146-5824
Phone
(918) 497-3718
Fax
(918) 497-3783
NPI assigned
Dec 10, 2025
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Dec 10, 2025

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

Authorized official

Name
Stephen Z Sack, MD, PHD
Title
Owner/Authorized Official
Phone
(918) 497-3718

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Radiation Oncology PhysicianGroup: 193400000X SINGLE SPECIALTY GROUP 2085R0001X Primary

Addresses

Primary practice location

11212 E 48TH St
Tulsa, OK 74146-5824

Mailing address

11212 E 48TH St
Tulsa, OK 74146-5824
Phone (918) 497-3718

National Provider Directory

National Provider Directory

NPI Registry JSON

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

{
    "created_epoch": "1765324800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1765324800000",
    "number": "1740144369",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "11212 E 48TH ST",
            "city": "TULSA",
            "state": "OK",
            "postal_code": "741465824",
            "telephone_number": "918-497-3718",
            "fax_number": "918-497-3783"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "11212 E 48TH ST",
            "city": "TULSA",
            "state": "OK",
            "postal_code": "741465824",
            "telephone_number": "918-497-3718",
            "fax_number": "918-497-3783"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "RADIATION SPECIALISTS OF OKLAHOMA, PLLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2025-12-10",
        "last_updated": "2025-12-10",
        "certification_date": "2025-12-10",
        "status": "A",
        "authorized_official_last_name": "SACK",
        "authorized_official_first_name": "STEPHEN",
        "authorized_official_middle_name": "Z",
        "authorized_official_title_or_position": "OWNER/AUTHORIZED OFFICIAL",
        "authorized_official_telephone_number": "918-497-3718",
        "authorized_official_credential": "MD, PHD"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Radiology, Radiation Oncology",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "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 Dec 10, 2025; 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.