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PROTON FUSION, LLC
NPI 1093524167
Radiology - Radiation Oncology in Fort Myers, FL

Active since January 03, 2025
9961 ESTERO OAKS DR UNIT 101A, FORT MYERS, FL 33967(239) 516-0009(239) 266-9769 Get Directions Write a Review

NPPES record last updated: December 4, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Dec 4, 2025, Oct 8, 2025, May 15, 2025 and 1 more (4 updates tracked since 2025).

About Proton Fusion, Llc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

PROTON FUSION, LLC (NPI 1093524167), doing business as Southwest Florida Proton, is a healthcare organization registered as a radiation oncology in Fort Myers, Florida and active in the NPI registry since January 2025. The organization lists Arie P Dosoretz, Ceo, as its authorized official.

NPPES Registry Identity

NPI1093524167
Entity TypeOrganization
Primary Taxonomy2085R0001X
Legal Business NamePROTON FUSION, LLC
Location Address9961 ESTERO OAKS DR UNIT 101AFort Myers, FL 33967-5453
Mailing AddressPo Box 96362Charlotte, NC 28296-6362 · (239) 416-8101 · Fax (239) 402-8601
Phone(239) 516-0009
Fax(239) 266-9769
Organization SubpartNo
Authorized OfficialArie P DosoretzCeo · (215) 681-3340
Enumeration DateJanuary 3, 2025
Last NPPES UpdateDecember 4, 20254 updates tracked since enumeration
NPPES CertifiedDecember 4, 2025
✔ NPI 1093524167 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0001X
Definition
A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.
9961 ESTERO OAKS DR UNIT 101A, Fort Myers, FL 33967
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Other Names 1

Doing Business AsSouthwest Florida Proton

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cigna Healthcare, Cigna HealthCare of Florida, Inc., Florida Blue (BlueCross BlueShield FL) and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Proton Fusion, Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

3

Medicare enrollment records show 3 clinicians reassign Medicare billing to Proton Fusion, LLC, which bills Medicare for the services they deliver. Of these, 1 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (3)

Todd Pezzi, MD
Radiation Oncology
NPI 1336674431
25243 ELEMENTARY WAY
Bonita Springs, FL 34135
(239) 317-2772
✔ PECOS✔ Accepts Medicare5.6 mi
Rachel Perricone, ARNP
Nurse Practitioner
NPI 1548553936
2100 GLENWOOD DR
Winter Park, FL 32792
(407) 646-7777
✔ PECOS151 mi
Shannon Macdonald, MD
Radiation Oncology
NPI 1497713853
100 BLOSSOM STREET COX 3
Boston, MA 02114
(617) 724-8196
✔ PECOS✔ Accepts Medicare1,254 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Proton Fusion, LLC's NPI number?

The NPI number for Proton Fusion, LLC is 1093524167. It was assigned to this organization in the NPPES registry on January 3, 2025. The provider is doing business as Southwest Florida Proton.

Where is Proton Fusion, LLC located?

Proton Fusion, LLC is located at 9961 Estero Oaks Dr Unit 101A, Fort Myers, FL 33967. The listed phone number is (239) 516-0009.

What is Proton Fusion, LLC's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Is Proton Fusion, LLC enrolled in Medicare?

Yes. Proton Fusion, LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Proton Fusion, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians reassign their Medicare billing to Proton Fusion, LLC, in Nurse Practitioner and Radiation Oncology. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 1 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Proton Fusion, LLC accept?

Health plans from Cigna HealthCare of Florida, Inc., Cigna Healthcare, Florida Blue (BlueCross BlueShield FL) and Florida Blue HMO (a BlueCross BlueShield FL company) list Proton Fusion, LLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Proton Fusion, LLC was last updated on December 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.