Marc A Antonchak, M.D.
Rheumatology Internal Medicine
Marc A Antonchak is a Rheumatology Internal Medicine specialist based in Columbus, OH with over 22 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Also practices: INTERNAL MEDICINE
With over 22 years in internal medicine, Marc a Antonchak, M.D. is a long-established rheumatologist in Columbus. He graduated from Northeastern Ohio University College of Medicine in 2004 and has 22+ years of clinical experience. He regularly sees Medicare patients with hypertension, arthritis, and high cholesterol (per CMS claims data). CMS MIPS quality score: 85.63/100 (2023).
At a glance
- Uses generic medications more than 31% of reporting doctors in Ohio
- Federal MIPS score higher than 48% of MIPS-scored doctors in Ohio
- Virtual visits available — no app or travel required
Older · 270dNPPES updated 2025-08-26 · verify NPI on CMS · Verify license at State Medical Board of Ohio
Contact & Location
Practice Location
1211 Dublin Rd, Columbus, OH 43215-1091
How Does This Doctor Compare?
Based on Medicare data, this doctor has an average quality score compared to other doctors in Ohio, favors affordable generic drugs over brand-name ones.
MIPS Score
202385.63/100
Ohio avg: 85.7 · US avg: 83.6
✓ Higher than most doctors nationally(+2 pts)
Average range among MIPS-scored doctors in OhioHow the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Opioid Rx
↓ Lower = better5.53%
Ohio avg: 4.2 · US avg: 5.1
⚠ Lower than most doctors nationally(+0.4 pts)
5.53% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better84.9%
Ohio avg: 83.3 · US avg: 82.8
✓ Higher than most doctors nationally(+2.1 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
554
Unique beneficiaries
High volumePrescription Recipients
522
Patients prescribed
Prescriptions Written
2,931
Total claims
Total Medicare drug cost: $1.75M
Percentile rankings compared against 2,065 reporting peers in Ohio.
Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages Hypertension, Arthritis, and High Cholesterol.
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↑ More patients than average (+5%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↑ More patients than average (+26%) — a focus area for this doctor
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↓ Fewer patients than average (-1%) — less common here
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↓ Fewer patients than average (-5%) — less common here
Weakened bones that are more prone to fractures, common in older adults
US avg: 18.1%↑ More patients than average (+9%) — a focus area for this doctor
Conditions affecting emotional state, including depression and bipolar disorder
A mood disorder causing persistent sadness and loss of interest in activities
US avg: 31.8%↓ Fewer patients than average (-6%) — less common here
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↓ Fewer patients than average (-10%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$2.5k received from industry
164 transactions reported in 2024 ·Moderate tier
Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.
Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to Marc a Antonchak's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 2004
Northeastern Ohio University College of Medicine
Board certified · Aug 25, 2025
Self-reported via NPPES
22 years in practice
Experienced
Rheumatologists treat autoimmune and inflammatory conditions including rheumatoid arthritis, lupus, psoriatic arthritis, gout, osteoarthritis, and vasculitis. They manage biologic therapies and joint-preserving treatments.
Taxonomy: 207RR0500X
Education & Training
Northeastern Ohio University College of Medicine (Class of 2004)
Mailing address
1211 Dublin Rd, Columbus, OH 43215-1026
Differs from practice location
Virtual Internal Medicine Care With Marc a Antonchak
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Marc a Antonchak for blood pressure monitoring, arthritis follow-ups, cholesterol management — no travel to Columbus required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about Marc a Antonchak
Dr. Antonchak is listed as active in the NPI registry with telehealth listed in Columbus, OH. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (614) 486-5200.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.
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Contact Marc a Antonchak
Practice Location
1211 Dublin Rd, Columbus, OH 43215-1091
Mailing Address
1211 Dublin Rd, Columbus, OH 43215-1026
This is a provider directory. Contact the office directly to schedule appointments.
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