EAST TENNESSEE RADIATION THERAPY
NPI 1679847917
Radiology - Radiation Oncology in Knoxville, TN
About East Tennessee Radiation Therapy NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
EAST TENNESSEE RADIATION THERAPY (NPI 1679847917), doing business as Provision Radiation Therapy, is a healthcare organization registered as a radiation oncology in Knoxville, Tennessee and active in the NPI registry since March 2012. The organization lists Michael W Langenberg, Executive Director, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Group Practice 1
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)
East Tennessee Radiation Therapy is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
3Medicare enrollment records show 3 clinicians reassign Medicare billing to East Tennessee Radiation Therapy, which bills Medicare for the services they deliver. Of these, 1 practice within 10 miles. They are listed nearest first.
Clinicians, nearest first (3)
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 East Tennessee Radiation Therapy's NPI number?
The NPI number for East Tennessee Radiation Therapy is 1679847917. It was assigned to this organization in the NPPES registry on March 5, 2012. The provider is doing business as Provision Radiation Therapy.
Where is East Tennessee Radiation Therapy located?
East Tennessee Radiation Therapy is located at 1415 Old Weisgarber Rd Suite 250, Knoxville, TN 37909. The listed phone number is (865) 684-2613.
What is East Tennessee Radiation Therapy's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.
Is East Tennessee Radiation Therapy enrolled in Medicare?
Yes. East Tennessee Radiation Therapy is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through East Tennessee Radiation Therapy?
According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians, all in Radiation Oncology, reassign their Medicare billing to East Tennessee Radiation Therapy. 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 East Tennessee Radiation Therapy accept?
Health plans from Cigna Healthcare list East Tennessee Radiation Therapy 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 East Tennessee Radiation Therapy was last updated on June 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# East Tennessee Radiation Therapy · NPI 1679847917
Radiation Oncology organization in Knoxville, Tennessee. Organization record, active in the CMS NPPES registry since March 5, 2012.
## Identity
- **NPI:** 1679847917 (Entity type: Organization)
- **Enumerated:** March 5, 2012
- **Primary specialty:** Radiology - Radiation Oncology · taxonomy 2085R0001X
- **Also known as:** Provision Radiation Therapy (Doing Business As)
- **Organization subpart:** No
- **Authorized official:** Michael Langenberg, EXECUTIVE DIRECTOR
## Practice location
- **Address:** 1415 OLD WEISGARBER RD, SUITE 250, Knoxville, TN 37909-1327
- **Phone:** (865) 684-2613 · **Fax:** (865) 684-2611
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 3 clinicians (Radiation Oncology) reassign Medicare billing to this organization (form CMS-855R); 1 practice within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 16, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1679847917) · Data from the CMS NPPES public registry.