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GULFSTREAM UROLOGY
NPI 1518105394
Urology in Fort Myers, FL

Active since February 02, 2009
8931 COLONIAL CENTER DR, SUITE 100, FORT MYERS, FL 33905(239) 277-5770(239) 985-1911 Get Directions Write a Review

NPPES record last updated: July 12, 2019. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Gulfstream Urology NPPES

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

GULFSTREAM UROLOGY (NPI 1518105394) is a healthcare organization registered as an urology in Fort Myers, Florida and active in the NPI registry since February 2009. The organization lists Kim Commins, Ceo, as its authorized official.

NPPES Registry Identity

NPI1518105394
Entity TypeOrganization
Primary Taxonomy208800000X
Legal Business Name21ST CENTURY ONCOLOGY LLC
Location Address8931 COLONIAL CENTER DR, SUITE 100Fort Myers, FL 33905-7809
Mailing Address2234 Colonial BlvdFort Myers, FL 33907-1412 · (239) 931-7342 · Fax (239) 931-7385
Phone(239) 277-5770
Fax(239) 985-1911
Organization SubpartYesParent: Radiation Therapy Services Inc
Authorized OfficialKim ComminsCeo · (239) 931-7275
Enumeration DateFebruary 2, 2009
Last NPPES UpdateJuly 12, 2019
✔ NPI 1518105394 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyUrologyAllopathic & Osteopathic Physicians
Taxonomy Code208800000X
Definition
A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.
8931 COLONIAL CENTER DR, Fort Myers, FL 33905
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Other Names 1

Doing Business AsGulfstream Urology

Other Identifiers 1

OtherCE7138FL · Railroad Medicare

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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Gulfstream Urology is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

282

Medicare enrollment records show 282 clinicians reassign Medicare billing to Gulfstream Urology, which bills Medicare for the services they deliver. Of these, 12 practice at this address and 54 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 19

Urology86
Nurse Practitioner56
Radiation Oncology53
Hematology/Oncology18
General Surgery17
Medical Oncology14
Otolaryngology7
Surgical Oncology5
11 other specialties26

Nearest to this location (20)

See all 282
Fadi Abu Shahin, MD
Gynecological Oncology
NPI 1265608806
8931 COLONIAL CENTER DR SUITE 400
Fort Myers, FL 33905
(239) 334-6626
✔ PECOS✔ Accepts MedicareSame address
Kelly Dylik, APRN FNP-C
Nurse Practitioner
NPI 1184297103
8931 COLONIAL CENTER DR STE 400
Fort Myers, FL 33905
(239) 334-6626
✔ PECOS✔ Accepts MedicareSame address
Samith Sandadi, M.D.
Gynecological Oncology
NPI 1790980142
8931 COLONIAL CENTER DR STE 400
Fort Myers, FL 33905
(239) 319-3714
✔ PECOS✔ Accepts MedicareSame address
Scott Caesar, MD
Urology
NPI 1083849566
8931 COLONIAL CENTER DR SUITE 100
Fort Myers, FL 33905
(239) 458-1196
✔ PECOS✔ Accepts MedicareSame address
Edward Grendys, MD
Gynecological Oncology
NPI 1669479747
8931 COLONIAL CENTER DR SUITE 400
Fort Myers, FL 33905
(239) 334-6626
✔ PECOS✔ Accepts MedicareSame address
Bassan Allan
Surgical Oncology
NPI 1356582381
8925 COLONIAL CENTER DR STE 1000
Fort Myers, FL 33905
(239) 343-7400
✔ PECOS✔ Accepts MedicareSame address
Paul Bloomston, MD
Surgical Oncology
NPI 1982658225
8925 COLONIAL CENTER DR STE 1000
Fort Myers, FL 33905
(239) 343-7400
✔ PECOS✔ Accepts MedicareSame address
Casey Diaz De Nacimiento
Nurse Practitioner
NPI 1750125878
8925 COLONIAL CENTER DR STE 1000
Fort Myers, FL 33905
(239) 343-7400
✔ PECOS✔ Accepts MedicareSame address
Catalina Mosquera, M.D.
General Surgery
NPI 1952668667
8925 COLONIAL CENTER DR STE 1000
Fort Myers, FL 33905
(239) 343-7400
✔ PECOS✔ Accepts MedicareSame address
Jeffrey Renaud
Nurse Practitioner
NPI 1689405649
8925 COLONIAL CENTER DR STE 1000
Fort Myers, FL 33905
(239) 343-7400
✔ PECOS✔ Accepts MedicareSame address
Meagan Walton, ARNP
Nurse Practitioner
NPI 1124258983
8925 COLONIAL CENTER DR STE 1000
Fort Myers, FL 33905
(239) 343-7400
✔ PECOS✔ Accepts MedicareSame address
Kelly Elleson, MD
General Surgery
NPI 1487048930
8931 COLONIAL CENTER DR STE 301
Fort Myers, FL 33905
(239) 539-8815
✔ PECOS✔ Accepts MedicareSame address
Bethany Loppnow, ARNP, FNP-C
Nurse Practitioner
NPI 1538770235
2675 WINKLER AVE
Fort Myers, FL 33901
(844) 674-4677
✔ PECOS✔ Accepts Medicare3.1 mi
Yolayci Torres Leyva
Nurse Practitioner
NPI 1578275061
2270 COLONIAL BLVD
Fort Myers, FL 33907
(833) 367-6942
✔ PECOS✔ Accepts Medicare3.8 mi
Eric Pachter, MD
Urology
NPI 1922068436
2234 COLONIAL BLVD ATTN: PAYER CONTRACTING & RELATIONS
Fort Myers, FL 33907
(239) 931-7342
✔ PECOS✔ Accepts Medicare3.8 mi
George Kalemeris, MD
Pathology
NPI 1407835234
1620 MEDICAL LN SUITE 100
Ft Myers, FL 33907
(239) 275-1164
✔ PECOS4.6 mi
Lori Cook, MS
Qualified Audiologist
NPI 1306004817
39 BARKLEY CIR
Fort Myers, FL 33907
(239) 936-1616
✔ Accepts Medicare4.9 mi
Robert Kopp, MD
Otolaryngology
NPI 1487913794
39 BARKLEY CIR
Fort Myers, FL 33907
(239) 936-1616
✔ PECOS✔ Accepts Medicare4.9 mi
John Neiner, M.D.
Otolaryngology
NPI 1629334230
39 BARKLEY CIR
Fort Myers, FL 33907
(239) 936-1616
✔ PECOS✔ Accepts Medicare4.9 mi
Aaron Bilovecky, M.A, CCC-A
Qualified Audiologist
NPI 1598914715
39 BARKLEY CIR
Fort Myers, FL 33907
(239) 936-1616
✔ Accepts Medicare4.9 mi
See all 282 clinicians

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 21st Century Oncology LLC's NPI number?

The NPI number for 21st Century Oncology LLC is 1518105394. It was assigned to this organization in the NPPES registry on February 2, 2009. The provider is doing business as Gulfstream Urology.

Where is 21st Century Oncology LLC located?

21st Century Oncology LLC is located at 8931 Colonial Center Dr Suite 100, Fort Myers, FL 33905. The listed phone number is (239) 277-5770.

What is 21st Century Oncology LLC's specialty?

The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.

Is 21st Century Oncology LLC enrolled in Medicare?

Yes. 21st Century Oncology LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through 21st Century Oncology LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 282 clinicians in 19 Medicare specialties reassign their Medicare billing to 21st Century Oncology LLC. 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. The largest specialties are Urology (86), Nurse Practitioner (56) and Radiation Oncology (53). Of these, 12 practice at this address and 54 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for 21st Century Oncology LLC was last updated on July 12, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years 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.