Internal Medicine in Sioux Falls, South Dakota
Data updated monthly · Last refresh September 2026
111 Internal Medicine providers practice in Sioux Falls, and 28% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.
Internal Medicine providers in Sioux Falls
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. Janell Simpkins, MDSioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 322-5313 Dr. Jared Drenkow, M.D.Sioux Falls, SD · No drug or device payments recorded (2025) ·
(053) 227-9056 Dr. Jean Lageson, MDSioux Falls, SD · $29 in drug and device payments (2025) ·
(605) 504-1700 Dr. Jenna Gassman, DOSioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 404-4000 Dr. Jerel Tieszen, M.D.Sioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 328-7500 Dr. Jitendra Thakkar, MDSioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 328-4973 Dr. Joaquin Duarte Ow, MDSioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 328-4973 Dr. John Mallek, MDSioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 328-3485 Dr. Kevin Smith, DOSioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 322-5750 Dr. Kevin Whittle, M.D.Sioux Falls, SD · $29 in drug and device payments (2025) ·
(605) 332-6800 Dr. Kimberly Woolhiser, MDSioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 782-2000 Dr. Leonard Gutnik, M.D.Sioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 504-1700 Dr. Lidia Siorek, MDSioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 336-3230 Dr. Liesl Pavlic, MDSioux Falls, SD · $29 in drug and device payments (2025) ·
(605) 322-6800 Dr. Lorraine Huet-holm, MDSioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 328-9700 Dr. Maaz Badshah, MDSioux Falls, SD · $14 in drug and device payments (2025) ·
(605) 328-8500 Dr. Mark Lounsbery, D.OSioux Falls, SD · $69 in drug and device payments (2025) ·
(605) 328-7500 Dr. Maryam SheikhSioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 322-7905 Dr. Matthew Jahraus, D.O.Sioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 328-4973 Dr. Matthew Muller, DOSioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 333-1000 Dr. Michael Heisler, M.D.Sioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 322-2460 Dr. Michael Schurrer, M.D.Sioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 336-2140 Dr. Michael Tobin, M.D.Sioux Falls, SD · $21 in drug and device payments (2025) ·
(605) 336-2140 Dr. Mohammad Ahmed, M.DSioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 322-7905 Dr. Muhammad Hamza, MDSioux Falls, SD · $20 in drug and device payments (2025) ·
(605) 322-8000 Dr. Muhammad Shahjahan KhanSioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 322-7645 Dr. Neil Brummond, MDSioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 504-1700 Dr. Nicholas Kaufman, M.D.Sioux Falls, SD · No drug or device payments recorded (2025) · Telehealth ·
(605) 504-1700 Dr. Otis Apau, MD MPHSioux Falls, SD · No drug or device payments recorded (2025) ·
(301) 583-6719 Dr. Paul Aspaas, M.D.Sioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 333-6571 Dr. Phillip Little, M.D.Sioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 336-3230 Dr. Rafia Irfan WaheedSioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 328-4973 Dr. Raiko MunankarmiSioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 322-7905 Dr. Rakshya Sharma, MDSioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 322-8000 Dr. Ramesh Kashyap, M.DSioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 328-4973 Dr. Richard Nelson, M.D.Sioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 336-2140 Dr. Robert Behrend, MDSioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 328-7500 Dr. Romai SebhatuSioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 322-7905 Dr. Russell Wilke, MDSioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 328-7500 Dr. Ryan Miller, MDSioux Falls, SD · No drug or device payments recorded (2025) ·
(056) 322-5765 Dr. Sanjana Manimaran, M.B.B.SSioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 322-8000 Dr. Sara Ruter, M.D.Sioux Falls, SD · $120 in drug and device payments (2025) ·
(605) 328-7500 Dr. Scott Beckstrand, MDSioux Falls, SD · $20 in drug and device payments (2025) ·
(605) 504-1700 Dr. Scott Hiltunen, MDSioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 336-2140 Dr. Sean Mcgrann, M.D.Sioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 322-8000 Dr. Shefaly Jacob, MDSioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 322-8000 Dr. Shristi Upadhyay Banskota, MDSioux Falls, SD · $772 in drug and device payments (2025) · Telehealth ·
(605) 322-3035 Dr. Song Hong, M.D.Sioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 357-1300 Dr. Sophie Two Hawk, M.D.Sioux Falls, SD · $45 in drug and device payments (2025) ·
(605) 504-1700 Dr. Stephen Billion, M.D.Sioux Falls, SD · No drug or device payments recorded (2025) ·
(605) 336-2140 Conditions Internal Medicine providers in Sioux Falls, South Dakota 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 Sioux Falls, South Dakota?There are 111 Internal Medicine providers with active NPI records practicing in Sioux Falls, according to federal NPPES data refreshed monthly.
How many Internal Medicine providers in Sioux Falls received drug or device company payments?31 of 111 (28%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
What conditions do Internal Medicine providers in Sioux Falls treat?Internal Medicine providers in Sioux Falls 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 Sioux Falls Internal Medicine across South Dakota
