Marshall Ryan Harrell, MD
Radiation Oncology Physician · Columbus, OH
Marshall Ryan Harrell, MD is a radiation oncology physician with a practice address in Columbus, Ohio, and NPI 1851041115, issued on Mar 28, 2022. Check the license (Ohio 57.255532, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Marshall Ryan Harrell
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 57.255532 OH
Self-reported in NPPES; status is on the state search - Practice location
- 460 W 10TH Ave, Columbus, OH 43210
- Phone
- (614) 293-5066
- Enumerated
- Mar 28, 2022
- Record last updated
- Aug 30, 2023
- Fax
- (850) 431-8251
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 298 in Ohio → Look up another NPI →
Also registered at 460 W 10TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amina Abdule, APRN-CNPFamily Nurse Practitioner1316346786
- Megan Adelman, PA-CPhysician Assistant1437355492
- Hailey AdlerPhysician Assistant1740024843
- Taimoor Adnan, M.D.Internal Medicine Physician1225481088
- Laura Adorni, C.N.P.Nurse Practitioner1295181832
- Mariam Ahmed, APRN-CNPAcute Care Nurse Practitioner1609612035
Verify Marshall Ryan Harrell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 57.255532Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average radiation oncology physician in 2024
32 Medicare Part D claims for 20 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
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.
Industry payments in 2024: $18.64
1 payment: food and beverage; the largest payer was Boston Scientific Corporation. 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.
Marshall Ryan Harrell among 298 radiation oncology physician records in Ohio
Marshall Ryan Harrell, 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 2022, is newer than 98% of them.
- NPI issued2022 · 98% of these records are older, 1% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 76% of these records are
- 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 Columbus → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Aashish Bhatt, MDColumbus, OH 432101790953297
- Dukagjin Blakaj, MDColumbus, OH 432101144483272
- Arnab Chakravarti, M.D.Columbus, OH 432101073549515
- Virginia Diavolitsis, MDColumbus, OH 432101275799181
- Dayssy Diaz Pardo, M.D.Columbus, OH 432101962722207
- John Grecula, MDColumbus, OH 432101871691592
- Karl Haglund, MD, PHDColumbus, OH 432101518093996
- Young Kwon, MDColumbus, OH 432101043548209
Common questions
What is Marshall Ryan Harrell, MD's NPI number?
Marshall Ryan Harrell, MD's National Provider Identifier (NPI) is 1851041115, issued on Mar 28, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Marshall Ryan Harrell, MD located?
The NPPES record lists a practice address at 460 W 10TH Ave, Columbus, OH, 43210. Phone: (614) 293-5066. Providers update this record themselves, so call before visiting.
How can I verify Marshall Ryan Harrell, MD's license?
NPPES lists Ohio license number 57.255532, 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 Marshall Ryan Harrell, MD prescribe under Medicare Part D?
In 2024, Marshall Ryan Harrell, MD had 32 Medicare Part D claims for 20 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
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.