GREGORY M THOMPSON MD
NPI 1750512349
Radiology - Radiation Oncology in Chillicothe, OH
About Gregory M Thompson Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREGORY M THOMPSON MD (NPI 1750512349) is an individual radiation oncology provider in Chillicothe, Ohio, licensed in Ohio (35.121757) and active in the NPI registry since July 2009. He is enrolled in Medicare PECOS, is affiliated with Adena Regional Medical Center, and is a graduate of Wright State University Boonshoft School Of Medicine (2009).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Gregory M Thompson Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Gregory Thompson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Chillicothe, OH 45601
- Reassigned Medicare billing, Ohio enrollment
- 763 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 15
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Adena Regional Medical Center
Acute Care Hospitals · Chillicothe, OHBerger Hospital
Acute Care Hospitals · Circleville, OHGreenfield Area Medical Center
Critical Access Hospitals · Greenfield, OHAdena Fayette Medical Center
Critical Access Hospitals · Washington Ch, OHAdena Pike Medical Center
Critical Access Hospitals · Waverly, OHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 45601 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 8
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CHILLICOTHE, OH 45601
CHILLICOTHE, OH 45601
CHILLICOTHE, OH 45601
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 Gregory Thompson's NPI number?
The NPI number for Gregory Thompson is 1750512349. It was assigned to this individual provider in the NPPES registry on July 31, 2009.
Where is Gregory Thompson located?
Gregory Thompson practices at 4435 State Route 159, Chillicothe, OH 45601. The listed phone number is (740) 542-3030.
What is Gregory Thompson's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.
Is Gregory Thompson enrolled in Medicare?
Yes. Gregory Thompson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Gregory Thompson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Thompson reassigns Medicare benefits to Adena Medical Group LLC (Chillicothe, OH). The 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 Gregory Thompson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gregory Thompson accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and CareSource and 3 other insurers list Gregory Thompson 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.
Is Gregory Thompson affiliated with any hospitals?
According to CMS data, Gregory Thompson is affiliated with Adena Regional Medical Center, Berger Hospital, Greenfield Area Medical Center, Adena Fayette Medical Center and Adena Pike Medical Center.
When was this NPI record last updated?
The NPPES record for Gregory Thompson was last updated on December 31, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.