NPIMap

Organization Active NPI

Proton International Arkansas, LLC

  • Clinic/Center
  • Little Rock, AR
National Provider Identifier
1154075257
Registry record updated Sep 8, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinic/CenterTaxonomy code 261Q00000X
Legal business name
PROTON INTERNATIONAL ARKANSAS, LLC
Practice address
3900 W Capitol Ave Ste 200
Little Rock, AR 72205-5502
Phone
(630) 649-4060
NPI assigned
Feb 8, 2022
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Sep 8, 2026

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

Authorized official

Name
Mr. Amanda George
Title
Vice Chancellor for Finance & Cfo
Phone
(501) 686-5670

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Radiation Oncology PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 2085R0001X
Clinic/Center 261Q00000X Primary
Radiology Clinic/Center 261QR0200X
Radiation Oncology Clinic/Center 261QX0203X

Addresses

Primary practice location

3900 W Capitol Ave Ste 200
Little Rock, AR 72205-5502

Mailing address

4301 W Markham St # 783
Little Rock, AR 72205-7101

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in AR

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20230726002460 AR Part B Supplier - Clinic/Group Practice 3577924398 Receives reassigned benefits from 12 practitioners
Practice locations: Little Rock, AR

National Provider Directory

National Provider Directory

Locations

3900 W Capitol Ave
#200
Little Rock, AR 72205

3900 W Capitol Ave
Ste 200
Little Rock, AR 72205
Phone (630) 649-4060

Practitioners & affiliated clinicians

Practitioners 12

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1644278400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1788825600000",
    "number": "1154075257",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4301 W MARKHAM ST # 783",
            "city": "LITTLE ROCK",
            "state": "AR",
            "postal_code": "722057101"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3900 W CAPITOL AVE STE 200",
            "city": "LITTLE ROCK",
            "state": "AR",
            "postal_code": "722055502",
            "telephone_number": "630-649-4060"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "PROTON INTERNATIONAL ARKANSAS, LLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2022-02-08",
        "last_updated": "2026-09-08",
        "certification_date": "2026-09-08",
        "status": "A",
        "authorized_official_last_name": "GEORGE",
        "authorized_official_first_name": "AMANDA",
        "authorized_official_title_or_position": "VICE CHANCELLOR FOR FINANCE & CFO",
        "authorized_official_telephone_number": "501-686-5670",
        "authorized_official_name_prefix": "Mr."
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Radiology, Radiation Oncology",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "261Q00000X",
            "taxonomy_group": "",
            "desc": "Clinic/Center",
            "state": null,
            "license": null,
            "primary": true
        },
        {
            "code": "261QR0200X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Radiology",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "261QX0203X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Oncology, Radiation",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Little Rock, AR

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 8, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.