Michael Robert Siedow, M.D.
Radiation Oncology Physician · Columbus, OH
Michael Robert Siedow, M.D. is a radiation oncology physician with a practice address in Columbus, Ohio, and NPI 1891227567, issued on Mar 31, 2017. Check the license (Ohio 35.145631, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Michael Robert Siedow
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- 35.145631 OH
Self-reported in NPPES; status is on the state search - Practice location
- 111 S Grant Ave, Columbus, OH 43215
- Phone
- (614) 566-9506
- Enumerated
- Mar 31, 2017
- Record last updated
- Aug 17, 2022
- Medicare enrollment
- Enrolled (PECOS I20220616000857); accepts Medicare assignment
- Medical or professional school
- Toledo Medical College, 2017
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 298 in Ohio → Look up another NPI →
Also registered at 111 S Grant Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Matthew AdegboyeInternal Medicine Physician1881071827
- Patricia AidooPsychiatric/Mental Health Nurse Practitioner1215811591
- Bryan Alexander, M.D.Hospitalist Physician1588824387
- Rebecca Alexander, MDInternal Medicine Physician1659546786
- Jacinda Allen, M.D.Hospitalist Physician1144292418
- Wael AlnajjarFamily Medicine Physician1669890489
Verify Michael Robert Siedow in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35.145631Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average radiation oncology physician in 2024
320 Medicare Part D claims for 114 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 66 claims were for opioids.
Most prescribed
- Oxycodone-Acetaminophen34 claims
- Tamsulosin Hcl26 claims
- Silver Sulfadiazine25 claims
- Sucralfate23 claims
- Gabapentin22 claims
- Oxycodone Hcl16 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): 81.3 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: $21.44
1 payment: food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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
- Ohiohealth CorporationColumbus, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Robert Siedow among 298 radiation oncology physician records in Ohio
Michael Robert Siedow, 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 2017, is newer than 82% of them.
- NPI issued2017 · 82% of these records are older, 12% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated2017 · median 2008 among the 226 with a school on file
- Record last updated2022 · 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
- Constance Bauer, MDColumbus, OH 432151235206301
- Mark Becker, M.D.Columbus, OH 432151053312462
- Vijay Kudithipudi, MDColumbus, OH 432151457618548
- Ryan SalemColumbus, OH 432151306796107
- Eric AllanColumbus, OH 432141902163918
- Mark Crnkovich, MDColumbus, OH 432141205866647
- Megan Dehaan, MDColumbus, OH 432141952459968
- Praveen Dubey, MDColumbus, OH 432141114957552
Common questions
What is Michael Robert Siedow, M.D.'s NPI number?
Michael Robert Siedow, M.D.'s National Provider Identifier (NPI) is 1891227567, issued on Mar 31, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Michael Robert Siedow, M.D. located?
The NPPES record lists a practice address at 111 S Grant Ave, Columbus, OH, 43215. Phone: (614) 566-9506. Providers update this record themselves, so call before visiting.
How can I verify Michael Robert Siedow, M.D.'s license?
NPPES lists Ohio license number 35.145631, 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 Michael Robert Siedow, M.D. prescribe under Medicare Part D?
In 2024, Michael Robert Siedow, M.D. had 320 Medicare Part D claims for 114 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is Michael Robert Siedow, M.D.'s MIPS final score?
The 2023 MIPS final score is 81.3 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.