Internal Medicine in Alton, Illinois
Data updated monthly · Last refresh September 2026
21 Internal Medicine providers practice in Alton. Listings are drawn from federal public records and are not endorsements.
Internal Medicine providers in Alton
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. Christopher Green, M.D.Alton, IL · $2,503 in drug and device payments (2025) · Telehealth ·
(618) 474-1723 Dr. Christopher Pottmeyer, M.D.Alton, IL · No drug or device payments recorded (2025) ·
(618) 465-2571 Dr. Colin Butterfield, M.D. Dr. Da Hea Seo, MDAlton, IL · No drug or device payments recorded (2025) ·
(618) 462-2222 Dr. D'andrienne Jones, MDAlton, IL · No drug or device payments recorded (2025) ·
(618) 465-9500 Dr. Edward Blair, M.D.Alton, IL · No drug or device payments recorded (2025) ·
(618) 462-2222 Dr. Joanna Janas-kaminsky, M.D.Alton, IL · No drug or device payments recorded (2025) ·
(618) 465-8019 Dr. John Hoelscher, MDAlton, IL · $325 in drug and device payments (2025) · Telehealth ·
(618) 474-1723 Dr. John Richards, M.D.Alton, IL · No drug or device payments recorded (2025) ·
(618) 463-7240 Dr. John WuellnerAlton, IL · No drug or device payments recorded (2025) ·
(618) 474-1723 Dr. Kathleen Vest, M.D.Alton, IL · No drug or device payments recorded (2025) ·
(618) 474-8052 Dr. Kristen Stabell, MDAlton, IL · $16 in drug and device payments (2025) · Telehealth ·
(618) 463-8610 Dr. Lawrence Burch, M.D.Alton, IL · No drug or device payments recorded (2025) ·
(618) 465-8019 Dr. Madhusudan Vallala, MDAlton, IL · No drug or device payments recorded (2025) ·
(618) 462-2222 Dr. Robert Edwards, M.D.Alton, IL · No drug or device payments recorded (2025) ·
(618) 465-7016 Dr. Sarnit Charnond, M.D.Alton, IL · No drug or device payments recorded (2025) ·
(618) 463-5905 Dr. Stanley Sidwell, MDAlton, IL · No drug or device payments recorded (2025) ·
(618) 463-7240 Dr. Tariq Quadri, MDAlton, IL · $34 in drug and device payments (2025) · Telehealth ·
(618) 463-8610 Conditions Internal Medicine providers in Alton, Illinois 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 Alton, Illinois?There are 21 Internal Medicine providers with active NPI records practicing in Alton, according to federal NPPES data refreshed monthly.
What conditions do Internal Medicine providers in Alton treat?Internal Medicine providers in Alton 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 Alton Internal Medicine across Illinois