NPIMap

Organization Active NPI

Proton Fusion, LLC

Doing business as Southwest Florida Proton

  • Radiation Oncology Physician
  • Fort Myers, FL
National Provider Identifier
1093524167
Registry record updated Dec 4, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Radiation Oncology PhysicianTaxonomy code 2085R0001X
Legal business name
PROTON FUSION, LLC
Doing business as
Southwest Florida Proton
Practice address
9961 Estero Oaks Dr Unit 101a
Fort Myers, FL 33967-5453
Phone
(239) 516-0009
Fax
(239) 266-9769
NPI assigned
Jan 3, 2025
Last updated
Dec 4, 2025By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Dec 4, 2025

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

Authorized official

Name
Arie P Dosoretz, MDNPI 1720303589
Title
Ceo
Phone
(215) 681-3340

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 1

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

Addresses

Primary practice location

9961 Estero Oaks Dr Unit 101a
Fort Myers, FL 33967-5453

Mailing address

PO Box 96362
Charlotte, NC 28296-6362
Phone (239) 416-8101

Other names 1

  • Southwest Florida Proton Doing business as

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20250211002011 FL Part B Supplier - Clinic/Group Practice 6002346715 Receives reassigned benefits from 4 practitioners
Practice locations: Fort Myers, FL

National Provider Directory

National Provider Directory

Locations

9961 Estero Oaks Dr
Unit 101
Fort Myers, FL 33967

9961 Estero Oaks Dr
Unit 101A
Fort Myers, FL 33967
Phone (239) 396-5162

Practitioners & affiliated clinicians

Practitioners 15

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

View all 15

NPI Registry JSON

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

{
    "created_epoch": "1735862400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1764806400000",
    "number": "1093524167",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 96362",
            "city": "CHARLOTTE",
            "state": "NC",
            "postal_code": "282966362",
            "telephone_number": "239-416-8101",
            "fax_number": "239-402-8601"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9961 ESTERO OAKS DR UNIT 101A",
            "city": "FORT MYERS",
            "state": "FL",
            "postal_code": "339675453",
            "telephone_number": "239-516-0009",
            "fax_number": "239-266-9769"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "PROTON FUSION, LLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2025-01-03",
        "last_updated": "2025-12-04",
        "certification_date": "2025-12-04",
        "status": "A",
        "authorized_official_last_name": "DOSORETZ",
        "authorized_official_first_name": "ARIE",
        "authorized_official_middle_name": "P",
        "authorized_official_title_or_position": "CEO",
        "authorized_official_telephone_number": "215-681-3340",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Radiology, Radiation Oncology",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "Southwest Florida Proton",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in Fort Myers, FL

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 4, 2025; 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.