
Department of Internal Medicine
Internal Medicine • Sioux Falls, SD
Clinic Type
Internal Medicine
Address
Sanford School of Medicine, 1400 W. 22nd St., Sioux Falls, SD 57105
Phone
605-357-1340
Internalmedicine@usd.edu
Opening Hours
Monday - Friday 8:00 a.m. - 5:00 p.m.
Services Offered
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Insurance & Payment
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Languages Spoken
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FAQs
What is the opening hours?
Monday - Friday 8:00 a.m. - 5:00 p.m.
Social Media
Photos








What Patients Say
Overall sentiment across review platforms: positive
- Sanford Health (Elizabeth Hart, MD): 4.8/5 (204 ratings) (204 ratings)
- Sanford Health (Mark Lounsbery, DO): 4.9/5 (448 ratings) (448 ratings)
- Sanford Health (Sara Ruter, MD): 4.9/5 (485 ratings) (485 ratings)
- Sanford Health (Robert Behrend, MD): 4.7/5 (245 ratings) (245 ratings)
- Sanford Health (David Nelson, MD): 4.9/5 (537 ratings) (537 ratings)
- Sanford Health (Derek Lee, MD): 4.8/5 (427 ratings) (427 ratings)
Patients praise
- Strong listening skills and bedside manner
- Thorough explanations of health conditions and treatments
- Efficient clinic operations and friendly support staff
- Collaborative, patient-centered decision making
- Effective coordination of care with specialists
Common complaints
- Perceived rushing during appointments
- Occasional concerns about Medicare vs. comprehensive checkups
- Isolated reports of unprofessional communication
"Dr. Burkhardt is a caring provider who has a genuine and authentic demeanor. He takes the time to listen effectively and makes you feel like you are the best expert about yourself."
— Patient review for Avera Medical Group"Dr. Miller & his staff are very kind, considerate, and thorough. When with me, they are excellent listeners & helpful with their suggestions. I feel heard & cared for."
— Patient review for Avera Medical Group"Dr Terpstra is such a pleasant, caring person who really takes the time to listen to you as a patient and do what is best for you."
— Patient review for Sanford Internal Medicine ClinicSynthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].
In the News
- GI doctor’s legacy galvanized by forward focus - Sanford Health News — Jun 9, 2026
- USD Sanford School of Medicine Announces It Will Move First 18 Months of M.D. to Sioux Falls | University of South Dakota — Aug 14, 2025
- Sanford adding new medical building to Sioux Falls campus - Sanford Health News — Jun 10, 2026
- USD to move medicine training, biomedical science division to Sioux Falls — Aug 14, 2025
Information sourced from the clinic's website as of July 11, 2026.
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