Doctors in O Fallon, Illinois

192 licensed providers practice in O Fallon across 42 specialties, and 39% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

Specialties in O Fallon

• Family Medicine in O Fallon (40) · 38% received drug or device payments
• Chiropractor in O Fallon (33) · 0% received drug or device payments
• Emergency Medicine in O Fallon (21)
• Cardiovascular Disease in O Fallon (9)
• General Practice in O Fallon (7)
• Hospitalist in O Fallon (6)
• Ophthalmology in O Fallon (5)
• Sports Medicine (Family Medicine) in O Fallon (5)
• Obstetrics & Gynecology in O Fallon (5)
• Pediatrics in O Fallon (4)
• Interventional Cardiology in O Fallon (4)
• Internal Medicine in O Fallon (4)
• Orthopaedic Surgery in O Fallon (4)
• Registered Dietitian in O Fallon (3)
• Clinical Cardiac Electrophysiology in O Fallon (3)
• Anesthesiology in O Fallon (3)
• Urology in O Fallon (3)
• Radiation Oncology in O Fallon (3)
• Hematology & Oncology in O Fallon (3)
• Neurology in O Fallon (2)
• Physical Medicine & Rehabilitation in O Fallon (2)
• Neurological Surgery in O Fallon (2)
• Pulmonary Disease in O Fallon (2)
• Rehabilitation Chiropractor in O Fallon (1)
• Child & Adolescent Psychiatry in O Fallon (1)
• Occupational Medicine in O Fallon (1)
• Gastroenterology in O Fallon (1)
• Vascular & Interventional Radiology in O Fallon (1)
• Pain Medicine (Physical Medicine & Rehabilitation) in O Fallon (1)
• Pain Medicine (Anesthesiology) in O Fallon (1)
• Aerospace Medicine in O Fallon (1)
• Critical Care Medicine (Internal Medicine) in O Fallon (1)
• Vascular Surgery in O Fallon (1)
• Nutrition Chiropractor in O Fallon (1)
• Orthopaedic Hand Surgery in O Fallon (1)
• Cytopathology in O Fallon (1)
• Medical Oncology in O Fallon (1)
• Dermatology in O Fallon (1)
• Geriatric Medicine (Internal Medicine) in O Fallon (1)
• Neuromuscular Medicine (Psychiatry & Neurology) in O Fallon (1)
• Gynecology in O Fallon (1)
• Nephrology in O Fallon (1)

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