21ST CENTURY ONCOLOGY LLC
NPI 1346561289
Urology in Crestview, FL
About 21st Century Oncology Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
21ST CENTURY ONCOLOGY LLC (NPI 1346561289), doing business as Okaloosa-walton Urology, is a healthcare organization registered as an urology in Crestview, Florida and active in the NPI registry since June 2010. The organization lists Dianna Harrison, Sr. Director Of Provider Relations, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Group Practice 2
Accepted 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)
21st Century Oncology Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
282Medicare enrollment records show 282 clinicians reassign Medicare billing to 21st Century Oncology LLC, which bills Medicare for the services they deliver. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 19
Nearest to this location (20)
See all 282Source: 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 1346561289. It was assigned to this organization in the NPPES registry on June 15, 2010. The provider is doing business as Okaloosa-Walton Urology.
Where is 21st Century Oncology LLC located?
21st Century Oncology LLC is located at 131 E Redstone Ave Suite 102, Crestview, FL 32539. The listed phone number is (850) 682-6333.
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). Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does 21st Century Oncology LLC accept?
Health plans from Cigna HealthCare of Florida, Inc. and Cigna Healthcare list 21st Century Oncology 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 21st Century Oncology LLC was last updated on February 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.
# 21st Century Oncology Llc · NPI 1346561289
Urology organization in Crestview, Florida. Organization record, active in the CMS NPPES registry since June 15, 2010.
## Identity
- **NPI:** 1346561289 (Entity type: Organization)
- **Enumerated:** June 15, 2010
- **Primary specialty:** Urology · taxonomy 208800000X
- **Also known as:** Okaloosa-Walton Urology (Doing Business As)
- **Organization subpart:** Yes (part of Radiation Therapy Services Inc)
- **Authorized official:** Dianna Harrison, SR. DIRECTOR OF PROVIDER RELATIONS
## Practice location
- **Address:** 131 E REDSTONE AVE, SUITE 102, Crestview, FL 32539-5326
- **Phone:** (850) 682-6333 · **Fax:** (850) 682-0865
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 282 clinicians in 19 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Urology (86), Nurse Practitioner (56), Radiation Oncology (53); [full list](https://npiprofile.com/npi/1346561289/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 3, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1346561289) · Data from the CMS NPPES public registry.