Douglas Keyser, M.D.
Radiation Oncology Physician · Canton, OH
Douglas Keyser, M.D. is a radiation oncology physician with a practice address in Canton, Ohio, and NPI 1902831688, issued on Jul 11, 2006. Check the license (Ohio 35 063249, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Douglas Keyser
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 35 063249 OH
Self-reported in NPPES; status is on the state search - Practice location
- 2600 6TH St SW, Canton, OH 44710
- Phone
- (330) 363-6201
- Enumerated
- Jul 11, 2006
- Record last updated
- Nov 6, 2023
- Fax
- (330) 454-9397
- Medicaid ID
- 0235347 OH
- Medicare enrollment
- Enrolled (PECOS I20110104000642); accepts Medicare assignment
- Medical or professional school
- Northeastern Ohio University College Of Medicine, 1990
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 298 in Ohio → Look up another NPI →
Also registered at 2600 6TH St SW
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Douglas Keyser in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35 063249Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% more Medicare Part D claims than the average radiation oncology physician in 2024
145 Medicare Part D claims for 73 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. 43 claims were for opioids.
Most prescribed
- Tamsulosin Hcl34 claims
- Oxycodone-Acetaminophen18 claims
- Dexamethasone17 claims
- Hydrocodone-Acetaminophen12 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 practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $113.68
3 payments; by number, the most common kind was food and beverage; the largest payer was Accuray Incorporated. 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.
One hospital affiliation
- Marietta Memorial HospitalBelpre, OH · Acute Care Hospitals3 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Douglas Keyser among 298 radiation oncology physician records in Ohio
Douglas Keyser, M.D. 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 2006, is newer than 17% of them.
- NPI issued2006 · 17% of these records are older, 58% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated1990 · median 2008 among the 226 with a school on file
- Record last updated2023 · 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 Canton → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Laird Olson, M.D.Canton, OH 447101992779201
- Steven Olyejar, MDCanton, OH 447101043285448
- Philip Schneider, M.D.Canton, OH 447101275568974
- Daniel Sufficool, M.D.Canton, OH 447101083098669
- Sarah Grabowski, M.D.Canton, OH 447081336386945
- Edward Walsh, M.D.Canton, OH 447081124010954
- Daesung Lee, MDWooster, OH 446911750468526
- Michael Seider, PH.D., M.D., F.A.C.RWooster, OH 446911649251703
Common questions
What is Douglas Keyser, M.D.'s NPI number?
Douglas Keyser, M.D.'s National Provider Identifier (NPI) is 1902831688, issued on Jul 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Douglas Keyser, M.D. located?
The NPPES record lists a practice address at 2600 6TH St SW, Canton, OH, 44710. Phone: (330) 363-6201. Providers update this record themselves, so call before visiting.
How can I verify Douglas Keyser, M.D.'s license?
NPPES lists Ohio license number 35 063249, 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 Douglas Keyser, M.D. prescribe under Medicare Part D?
In 2024, Douglas Keyser, M.D. had 145 Medicare Part D claims for 73 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is Douglas Keyser, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. 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.