Gregory M. Thompson, MD
Radiation Oncology Physician · Chillicothe, OH
Gregory M. Thompson, MD is a radiation oncology physician with a practice address in Chillicothe, Ohio, and NPI 1750512349, issued on Jul 31, 2009. Check the license (Ohio 35.121757, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Gregory M. Thompson
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 35.121757 OH
Self-reported in NPPES; status is on the state search - Practice location
- 4435 State Route 159, Chillicothe, OH 45601
- Phone
- (740) 542-3030
- Enumerated
- Jul 31, 2009
- Record last updated
- Dec 31, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20141213000289); accepts Medicare assignment
- Medical or professional school
- Wright State University Boonshoft School Of Medicine, 2009
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 298 in Ohio → Look up another NPI →
Also registered at 4435 State Route 159
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Akaolisa Eziokwu, M.D.Hematology & Oncology Physician1265884100
- Abigail Johnson, CNPNurse Practitioner1740014067
- Vamsi Koduri, MDHematology & Oncology Physician1922398049
- Carissa Mitchell, APRN. CNPFamily Nurse Practitioner1053081703
- Sandipkumar Patel, M.D.Hematology & Oncology Physician1265849657
- Jeffrey Rose, MDMedical Oncology Physician1710969779
Verify Gregory M. Thompson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35.121757Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.5 times the Medicare Part D claims of the average radiation oncology physician in 2024
463 Medicare Part D claims for 125 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 84 claims were for opioids.
Most prescribed
- Tamsulosin Hcl126 claims
- Oxycodone Hcl54 claims
- Levothyroxine Sodium26 claims
- Bicalutamide17 claims
- Gabapentin16 claims
- Omeprazole16 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 83.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $15.91
1 payment: food and beverage; the largest payer was Immunitybio, Inc. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Adena Medical Group LLCChillicothe, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory M. Thompson among 298 radiation oncology physician records in Ohio
Gregory M. Thompson, MD is one of 298 radiation oncology physician records with a practice address in Ohio. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 51% of them.
- NPI issued2009 · 51% of these records are older, 45% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated2009 · median 2008 among the 226 with a school on file
- Record last updated2020 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Ohio
There are 298 radiation oncology physician records in Ohio.
All 298 in Ohio → Every provider in Chillicothe → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- William Wilson, M.D.Chillicothe, OH 456011619101086
- Divya AroraGallipolis, OH 456311891053757
- Subhash Khosla, MDGallipolis, OH 456311093768897
- Brian Plants, MDGallipolis, OH 456311841279361
- Maxwell Tran, M.DGallipolis, OH 456311922595057
- Li-Fen Chang, M.D.Portsmouth, OH 456621417910308
- Horia Vulpe, MD, CMPortsmouth, OH 456621023520095
- Aryavarta Kumar, M.D., PH.D.Springfield, OH 455041851533020
Common questions
What is Gregory M. Thompson, MD's NPI number?
Gregory M. Thompson, MD's National Provider Identifier (NPI) is 1750512349, issued on Jul 31, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Gregory M. Thompson, MD located?
The NPPES record lists a practice address at 4435 State Route 159, Chillicothe, OH, 45601. Phone: (740) 542-3030. Providers update this record themselves, so call before visiting.
How can I verify Gregory M. Thompson, MD's license?
NPPES lists Ohio license number 35.121757, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory M. Thompson, MD prescribe under Medicare Part D?
In 2024, Gregory M. Thompson, MD had 463 Medicare Part D claims for 125 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is Gregory M. Thompson, MD's MIPS final score?
The 2023 MIPS final score is 83.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.