Marc A. Antonchak, M.D.
Rheumatology Physician · Columbus, OH
Marc A. Antonchak, M.D. is a rheumatology physician with a practice address in Columbus, Ohio, and NPI 1982893103, issued on Oct 24, 2007. Check the license (Ohio 35089230, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Marc A. Antonchak
- Credential
- M.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- 35089230 OH
Self-reported in NPPES; status is on the state search - Practice location
- 1211 Dublin RD, Columbus, OH 43215
- Phone
- (614) 486-5200
- Enumerated
- Oct 24, 2007
- Record last updated
- Aug 26, 2025
- Fax
- (614) 486-9665
- Medicaid ID
- 2954156 OH
- Medicare enrollment
- Enrolled (PECOS I20090902000126); accepts Medicare assignment
- Medical or professional school
- Northeastern Ohio University College Of Medicine, 2004
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 289 in Ohio → Look up another NPI →
Also registered at 1211 Dublin RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Chelsea Austen, PA-CMedical Physician Assistant1346608627
- Marta Bergese, MDGastroenterology Physician1922091537
- Riddhi Cain, PA-CMedical Physician Assistant1093215527
- Anupama Chauhan, M.D.Rheumatology Physician1891906566
- Michelle DevilbissPhysician Assistant1558827527
- Candice Devol, PA-CMedical Physician Assistant1972808970
Verify Marc A. Antonchak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35089230Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
45% more Medicare Part D claims than the average rheumatology physician in 2024
2,865 Medicare Part D claims for 553 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 239 claims were for opioids.
Most prescribed
- Hydroxychloroquine Sulfate432 claims
- Methotrexate405 claims
- Prednisone205 claims
- Gabapentin133 claims
- Celecoxib122 claims
- Allopurinol105 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): 85.6 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: $2,532.08
164 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 4,486 providers of this specialty with any payment received $8,538.33 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
- Columbus Arthritis Center, Inc.Columbus, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marc A. Antonchak among 289 rheumatology physician records in Ohio
Marc A. Antonchak, M.D. is one of 289 rheumatology physician records with a practice address in Ohio. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 48% of them.
- NPI issued2007 · 48% of these records are older, 42% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2004 · median 2004 among the 201 with a school on file
- Record last updated2025 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in Ohio
There are 289 rheumatology physician records in Ohio.
All 289 in Ohio → Every provider in Columbus → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Anupama Chauhan, M.D.Columbus, OH 432151891906566
- Namrata Dhillon, MDColumbus, OH 432151689988099
- Sterling Hedrick, M.D.Columbus, OH 432151174501936
- Heather Lake, DOColumbus, OH 432151295857043
- Catherine Lee, M.D.Columbus, OH 432151679551311
- Eric Lirio, M.D.Columbus, OH 432151659578508
- Tanisha Mathur, M.DColumbus, OH 432151669634671
- Meriah MooreColumbus, OH 432151124482294
Common questions
What is Marc A. Antonchak, M.D.'s NPI number?
Marc A. Antonchak, M.D.'s National Provider Identifier (NPI) is 1982893103, issued on Oct 24, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Marc A. Antonchak, M.D. located?
The NPPES record lists a practice address at 1211 Dublin RD, Columbus, OH, 43215. Phone: (614) 486-5200. Providers update this record themselves, so call before visiting.
How can I verify Marc A. Antonchak, M.D.'s license?
NPPES lists Ohio license number 35089230, 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 Marc A. Antonchak, M.D. prescribe under Medicare Part D?
In 2024, Marc A. Antonchak, M.D. had 2,865 Medicare Part D claims for 553 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Marc A. Antonchak, M.D.'s MIPS final score?
The 2023 MIPS final score is 85.6 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.