Internal Medicine in Columbus, Indiana
Data updated monthly · Last refresh September 2026
17 Internal Medicine providers practice in Columbus. Listings are drawn from federal public records and are not endorsements.
Internal Medicine providers in Columbus
Listed alphabetically. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
Dr. Alan Watanabe, M.D.Columbus, IN · $155 in drug and device payments (2025) ·
(812) 376-9427 Dr. Brian Kline, MDColumbus, IN · $35 in drug and device payments (2025) ·
(912) 375-8810 Dr. Bruce Riddle, MDColumbus, IN · No drug or device payments recorded (2025) ·
(812) 372-8426 Dr. Christopher Iorio, MDColumbus, IN · $56 in drug and device payments (2025) · Telehealth ·
(812) 376-9427 Dr. Clarita Kalovidouris, MDColumbus, IN · No drug or device payments recorded (2025) ·
(812) 348-4080 Dr. Dennis Stone, MDColumbus, IN · No drug or device payments recorded (2025) ·
(812) 376-9427 Dr. Donnamarie Darcy-loescher, M.D.Columbus, IN · No drug or device payments recorded (2025) ·
(812) 376-9427 Dr. Joseph Sheehy, MDColumbus, IN · No drug or device payments recorded (2025) ·
(812) 376-9427 Dr. Manjusha Thenozhiyil, M.D.Columbus, IN · $19 in drug and device payments (2025) · Telehealth ·
(812) 376-9427 Dr. Natasha Singh, M.D.Columbus, IN · No drug or device payments recorded (2025) ·
(812) 373-3025 Dr. Paula Villarejo, MDColumbus, IN · $1,905 in drug and device payments (2025) ·
(812) 376-9427 Dr. Preetam Bollampally, MDColumbus, IN · $23 in drug and device payments (2025) ·
(812) 376-5974 Dr. Rachel CooperColumbus, IN · $57 in drug and device payments (2025) ·
(812) 376-9427 Dr. Sivagama Valli Ramasundaram, M.D.,Columbus, IN · $45 in drug and device payments (2025) ·
(812) 376-9427 Dr. Suganthi Kumaran, M.D.Columbus, IN · No drug or device payments recorded (2025) ·
(812) 377-6020 Dr. Tara Roeder, M.D.Columbus, IN · No drug or device payments recorded (2025) ·
(812) 376-9427 Dr. Theodora Saddoris, MDColumbus, IN · No drug or device payments recorded (2025) ·
(812) 376-7824 Conditions Internal Medicine providers in Columbus, Indiana commonly treat
Patients often search by condition rather than specialty. These are conditions typically managed by Internal Medicine providers. Individual practices vary, so confirm with the provider before booking.
- High blood pressure
- Type 2 diabetes
- High cholesterol
- Preventive care
- Chronic disease management
Common questions
How many Internal Medicine providers are in Columbus, Indiana?There are 17 Internal Medicine providers with active NPI records practicing in Columbus, according to federal NPPES data refreshed monthly.
What conditions do Internal Medicine providers in Columbus treat?Internal Medicine providers in Columbus commonly treat high blood pressure, type 2 diabetes, high cholesterol, preventive care, chronic disease management and related conditions. Individual practices vary, so confirm with the provider before booking.
Where does this data come from?Provider records come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
All specialties in Columbus Internal Medicine across Indiana