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Cardiologists who accept Medicare in O'Fallon, IL
CMS lists 20 clinicians in this specialty with a practice address in O'Fallon. Accept Medicare assignment (the Medicare-approved amount as full payment): 20. Offer telehealth: 0.
Typical amounts Medicare approves in ZIP 62269 (2024 Medicare rates, the latest CMS has published): a new-patient visit $131, of which you pay about $33; a follow-up visit $100, of which you pay about $25 — the 20% coinsurance after the yearly Part B deductible. Clinicians who don't accept assignment can charge up to 15% more; with a Medicare Advantage plan, your plan's copay applies instead.
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Order: clinicians who accept assignment first, then by MIPS score (highest first), then by last name.
Theodore R. Addai, MD
✓ Accepts Medicare assignmentMIPS score (2024): 94.8/100Graduated 1985MaleOther offices in O'Fallon: 1Drug and device company payments (2025): $389Luis J. Caceres, MD
✓ Accepts Medicare assignmentMIPS score (2024): 94.8/100Graduated 1988MaleOther offices in O'Fallon: 1Drug and device company payments (2025): $118Thomas Cahill Jr., MD
✓ Accepts Medicare assignmentMIPS score (2024): 94.8/100Graduated 1978 · Saint Louis University School of MedicineMaleOther offices in O'Fallon: 1Regina Y. Chiu, MD
✓ Accepts Medicare assignmentMIPS score (2024): 94.8/100Graduated 1999 · Saint Louis University School of MedicineFemaleOther offices in O'Fallon: 1Drug and device company payments (2025): $165Pavan K. Gupta, MD
✓ Accepts Medicare assignmentMIPS score (2024): 94.8/100Graduated 2004 · University of Pittsburgh School of MedicineMaleOther offices in O'Fallon: 1Drug and device company payments (2025): $83Scott Marrus, MD
✓ Accepts Medicare assignmentMIPS score (2024): 94.8/100Graduated 2005 · Washington University School of MedicineMaleDrug and device company payments (2025): $97Vinaya C. Mulkareddy, MD
✓ Accepts Medicare assignmentMIPS score (2024): 94.8/100Graduated 2015 · Saint Louis University School of MedicineFemaleOther offices in O'Fallon: 1Drug and device company payments (2025): $57Shiyam K. Satwani, MD
✓ Accepts Medicare assignmentMIPS score (2024): 94.8/100Graduated 1998MaleOther offices in O'Fallon: 1Drug and device company payments (2025): $1,505John P. Scally, MD
✓ Accepts Medicare assignmentMIPS score (2024): 94.8/100Graduated 2000 · George Washington University School of MedicineMaleOther offices in O'Fallon: 1Drug and device company payments (2025): $1,498Atul S. Shah, MD
✓ Accepts Medicare assignmentMIPS score (2024): 94.8/100Graduated 1980MaleDrug and device company payments (2025): $526Muhammad Sheikh, MD
✓ Accepts Medicare assignmentMIPS score (2024): 94.8/100Graduated 2011MaleOther offices in O'Fallon: 1Drug and device company payments (2025): $2,352Rugheed Ghadban, MD
✓ Accepts Medicare assignmentMIPS score (2024): 84.2/100Graduated 2007MaleDrug and device company payments (2025): $6,369Brittney Z. Heard, MD
✓ Accepts Medicare assignmentMIPS score (2024): 82.9/100Graduated 2014 · Meharry Medical College School of MedicineFemaleDrug and device company payments (2025): $5,452Hasan Rehman, MD
✓ Accepts Medicare assignmentMIPS score (2024): 28.5/100Graduated 2013MaleDrug and device company payments (2025): $135Venkatesh Anjan, MD
✓ Accepts Medicare assignmentGraduated 2008 · University of Arizona College of MedicineMaleOther offices in O'Fallon: 1Drug and device company payments (2025): $5,099Michael J. Hushion, MD
✓ Accepts Medicare assignmentGraduated 2010 · West Virginia University School of MedicineMaleOther offices in O'Fallon: 1Drug and device company payments (2025): $3,336Prasad V. Kandula, MD
✓ Accepts Medicare assignmentGraduated 1984MaleDrug and device company payments (2025): $1,285Samuel M. Lindner, MD
✓ Accepts Medicare assignmentGraduated 2014MaleDrug and device company payments (2025): $855Frederick O. Ochieng, MD
✓ Accepts Medicare assignmentGraduated 2010 · Vanderbilt University School of MedicineMaleOther offices in O'Fallon: 1Drug and device company payments (2025): $39Summit Pandat, MD
✓ Accepts Medicare assignmentGraduated 2016MaleDrug and device company payments (2025): $5,778
Before you book
This list comes from Medicare's enrollment records, not from reviews. Call the office to confirm the clinician is taking new Medicare patients. With Original Medicare, a clinician who accepts assignment can only charge you the Medicare deductible and coinsurance; one who doesn't may charge up to 15% more than the Medicare-approved amount. If you have a Medicare Advantage plan, check that the clinician is in the plan's network.
The MIPS final score (0–100) comes from Medicare's Merit-based Incentive Payment System for 2024. It combines quality measures, cost, improvement activities and use of certified health records, and it sets a payment adjustment. Clinicians who report as a group share the group's score. It is not a patient rating, and many clinicians have no published score.
Payments from drug and medical device companies come from CMS Open Payments (2025 general payments: meals, travel, consulting and speaking fees, gifts and similar), summed for each clinician. Receiving payments is legal and common and does not mean a clinician did anything wrong.
Other specialists in O'Fallon
- Primary care doctors81
- Nurse practitioners80
- Dermatologists4
- Orthopedic surgeons5
- Neurologists8
- Gastroenterologists9
- Ophthalmologists7
- Optometrists17
- Podiatrists5
- Oncologists5
- Therapists and counselors14
- Physical therapists13
- Occupational therapists8
- Speech therapists7
- Chiropractors12
- Gynecologists8
- Neurosurgeons4
Other care in O'Fallon
Hospitals · Dialysis centers · Home health agencies · Hospices
Nearby cities
Enrollment, addresses and scores are as reported to CMS and can change. This is not a list of in-network providers for any Medicare Advantage plan, and it is not medical advice. Source: CMS Provider Data Catalog — Doctors and Clinicians National Downloadable File, Clinician MIPS Performance 2024 and Facility Affiliation Data (released Oct 2, 2026).