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RADIATION ONCOLOGY CENTERS PC
NPI 1073610713
Radiology - Radiation Oncology in Grand Rapids, MI

Active since September 17, 2006
145 MICHIGAN ST NE STE 1100, GRAND RAPIDS, MI 49503(616) 486-5750(616) 486-5785 Get Directions Write a Review

NPPES record last updated: December 9, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 9, 2025, Nov 14, 2019 (2 updates tracked since 2019).

About Radiation Oncology Centers Pc NPPES

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

RADIATION ONCOLOGY CENTERS PC (NPI 1073610713) is a healthcare organization registered as a radiation oncology in Grand Rapids, Michigan and active in the NPI registry since September 2006. The organization lists Eric P Buth, President, as its authorized official.

NPPES Registry Identity

NPI1073610713
Entity TypeOrganization
Primary Taxonomy2085R0001X
Legal Business NameRADIATION ONCOLOGY CENTERS PC
Location Address145 MICHIGAN ST NE STE 1100Grand Rapids, MI 49503-2562
Mailing AddressPo Box 3525Evansville, IN 47734-3525 · (512) 583-2000 · Fax (512) 583-2001
Phone(616) 486-5750
Fax(616) 486-5785
Organization SubpartNo
Authorized OfficialEric P ButhPresident · (616) 486-5878
Enumeration DateSeptember 17, 2006
Last NPPES UpdateDecember 9, 20252 updates tracked since enumeration
NPPES CertifiedDecember 9, 2025
✔ NPI 1073610713 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.
145 MICHIGAN ST NE STE 1100, Grand Rapids, MI 49503
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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 Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Radiation Oncology Centers Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by March 31, 2027

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateMichiganEnrollment IDO20050628000225Non-DME Part B · Clinic/Group PracticeDue dateMarch 31, 2027
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

10

Medicare enrollment records show 10 clinicians reassign Medicare billing to Radiation Oncology Centers PC, which bills Medicare for the services they deliver. Of these, 5 practice at this address and 9 within 10 miles. They are listed nearest first.

Clinicians, nearest first (10)

Joshua Corteville, MD
Radiation Oncology
NPI 1093203457
145 MICHIGAN ST NE STE 2200
Grand Rapids, MI 49503
(616) 486-5750
✔ PECOS✔ Accepts MedicareSame address
Matthew Packard, M.D.
Radiation Oncology
NPI 1376772574
145 MICHIGAN ST NE - SUITE 2200 LEMMEN-HOLTON CANCER PAVILION (RADIATION/ONCOLOGY)
Grand Rapids, MI 49503
(616) 486-5750
✔ PECOS✔ Accepts MedicareSame address
Gina Rebesco, MD
Radiation Oncology
NPI 1013444967
145 MICHIGAN ST NE STE 1100
Grand Rapids, MI 49503
(616) 486-5750
✔ PECOS✔ Accepts MedicareSame address
Paul Thieme, DO
Radiation Oncology
NPI 1568535938
145 MICHIGAN ST NE STE 1100
Grand Rapids, MI 49503
(616) 486-5750
✔ PECOS✔ Accepts MedicareSame address
Robert Kirkland, MD
Radiation Oncology
NPI 1578940029
145 MICHIGAN ST NE STE 1100
Grand Rapids, MI 49503
(616) 486-5750
✔ PECOS✔ Accepts MedicareSame address
Patrick Fabrizio, MD
Radiation Oncology
NPI 1356350938
100 MICHIGAN ST NE
Grand Rapids, MI 49503
(616) 391-1830
✔ PECOS✔ Accepts Medicare0.2 mi
Michael Mahacek, MD
Radiation Oncology
NPI 1922021484
100 MICHIGAN ST NE
Grand Rapids, MI 49503
(616) 391-1830
✔ PECOS✔ Accepts Medicare0.2 mi
Brian Kastner, MD
Radiation Oncology
NPI 1396767752
1840 WEALTHY ST SE
East Grand Rapids, MI 49506
(616) 774-7845
✔ PECOS✔ Accepts Medicare2.5 mi
Edward Lee, DO
Radiation Oncology
NPI 1013930577
1840 WEALTHY ST SE
East Grand Rapids, MI 49506
(616) 774-7845
✔ PECOS✔ Accepts Medicare2.5 mi
Eric Buth, MD
Radiation Oncology
NPI 1538188982
4499 220TH AVE
Reed City, MI 49677
(231) 832-5817
✔ PECOS✔ Accepts Medicare63 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 Radiation Oncology Centers PC's NPI number?

The NPI number for Radiation Oncology Centers PC is 1073610713. It was assigned to this organization in the NPPES registry on September 17, 2006.

Where is Radiation Oncology Centers PC located?

Radiation Oncology Centers PC is located at 145 Michigan St NE Ste 1100, Grand Rapids, MI 49503. The listed phone number is (616) 486-5750.

What is Radiation Oncology Centers PC's specialty?

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

Is Radiation Oncology Centers PC enrolled in Medicare?

Yes. Radiation Oncology Centers PC is registered in the Medicare PECOS enrollment system.

When is Radiation Oncology Centers PC's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Michigan, Clinic/Group Practice) is due for revalidation by March 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Radiation Oncology Centers PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 10 clinicians, all in Radiation Oncology, reassign their Medicare billing to Radiation Oncology Centers PC. 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, 5 practice at this address and 9 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Radiation Oncology Centers PC accept?

Health plans from Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Radiation Oncology Centers PC 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 Radiation Oncology Centers PC was last updated on December 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.