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Cardiologists who accept Medicare in O'Fallon, MO
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: 1.
Typical amounts Medicare approves in ZIP 63368 (2024 Medicare rates, the latest CMS has published): a new-patient visit $128, of which you pay about $32; a follow-up visit $98, 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.
Sara Baig
✓ Accepts Medicare assignmentMIPS score (2024): 92.7/100Graduated 2003 · University of Missouri, Kansas City, School of MedicineFemaleDrug and device company payments (2025): $2,426Andre P. Bouhasin, MD
✓ Accepts Medicare assignmentGraduated 2001 · Saint Louis University School of MedicineMaleDrug and device company payments (2025): $7,727Stuart T. Higano, MD
✓ Accepts Medicare assignmentGraduated 1984 · University of Massachusetts Medical SchoolMaleDrug and device company payments (2025): $811Sandeep Hindupur, MD
✓ Accepts Medicare assignmentGraduated 2003 · University of Missouri, Kansas City, School of MedicineMaleDrug and device company payments (2025): $2,030Azamuddin Khaja, MD
✓ Accepts Medicare assignmentGraduated 1995MaleDrug and device company payments (2025): $2,560Michael R. Klein, MD
✓ Accepts Medicare assignmentGraduated 2008 · Washington University School of MedicineMaleDrug and device company payments (2025): $1,026Cameron Koester, DO
✓ Accepts Medicare assignmentGraduated 2023MaleDrug and device company payments (2025): $293Andrew J. Krainik, MD
✓ Accepts Medicare assignmentGraduated 2003 · University of Illinois College of Med (chi/peor/rock/chm-Urb)MaleDrug and device company payments (2025): $1,611Timothy J. Martin, MD
✓ Accepts Medicare assignmentGraduated 1991 · Saint Louis University School of MedicineMaleDrug and device company payments (2025): $2,388Michael A. Missler, DO
✓ Accepts Medicare assignmentGraduated 1999 · At Still University of Health Sciences, College of Osteo Med, KirksvilleMaleDrug and device company payments (2025): $228Mitchell Padkins, MD
✓ Accepts Medicare assignmentGraduated 2013 · University of Missouri, Columbia School of MedicineMaleDrug and device company payments (2025): $885Ripa K. Patel, MD
✓ Accepts Medicare assignmentGraduated 2015 · University of Missouri, Kansas City, School of MedicineFemaleDrug and device company payments (2025): $530David J. Sewall, MD
✓ Accepts Medicare assignmentGraduated 1988 · Boston University School of MedicineMaleDrug and device company payments (2025): $119James L. Smith, MD
✓ Accepts Medicare assignmentGraduated 2006 · Indiana University School of MedicineMaleDrug and device company payments (2025): $422Christopher M. Speidel, MD
✓ Accepts Medicare assignmentGraduated 1990 · Washington University School of MedicineMaleDrug and device company payments (2025): $330Gus Theodos, MD
✓ Accepts Medicare assignmentGraduated 2003 · Clvlnd Clinic Lerner College of Med of Case Wstn RSV UniversityMaleDrug and device company payments (2025): $67,897Sudhi Tyagi, MD
✓ Accepts Medicare assignmentGraduated 2013FemaleDrug and device company payments (2025): $1,728Daniel L. Wagner, MD
✓ Accepts Medicare assignment✓ TelehealthGraduated 2006 · University of Maryland School of MedicineMaleDrug and device company payments (2025): $468Diana L. Westerfield, DO
✓ Accepts Medicare assignmentGraduated 1992 · At Still University of Health Sciences, College of Osteo Med, KirksvilleFemaleDrug and device company payments (2025): $99Bradley C. Witbrodt, MD
✓ Accepts Medicare assignmentGraduated 2012MaleDrug and device company payments (2025): $77
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 doctors126
- Nurse practitioners166
- Dermatologists4
- Orthopedic surgeons21
- Neurologists7
- Gastroenterologists12
- Ophthalmologists6
- Optometrists30
- Podiatrists10
- Endocrinologists7
- Rheumatologists4
- ENT doctors9
- Psychiatrists4
- Therapists and counselors35
- Physical therapists68
- Occupational therapists6
- Audiologists6
- Chiropractors29
- Gynecologists39
- General surgeons7
- Physiatrists4
- Dietitians3
Other care in O'Fallon
Hospitals · Nursing homes · Dialysis centers · Home health agencies · Hospices
Nearby cities
- Saint Peters10
- Lake Saint Louis8
- Wentzville10
- Saint Charles16
- Chesterfield28
- Bridgeton22
- Hazelwood4
- Creve Coeur21
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).