How can we help?

We are currently accepting new patients!

Whether you suffer from diabetes, thyroid issues or other hormone-related problems, Oppenheimer Endocrinology of Sioux Falls is dedicated to treating you with advanced technology, 24/7 on-call service and the highest level of patient care possible. Dr. Mark Oppenheimer offers thirty years of medical expertise and a comfortable, friendly patient experience.


The Clinic Advantage

Oppenheimer Endocrinology is proud to offer a spacious clinic featuring immediate appointment availability, a convenient location and parking right outside the front door. You will find two licensed nurses on staff, both knowledgable in glucose monitoring equipment and the latest pump technology. Our entire staff is dedicated to the field of endocrinology. We take a personal approach to patient care and give our patients plenty of TLC. Because Dr. Oppenheimer is also an Internist, he is capable of identifying health problems outside the field of endocrinology.

Why Endocrinology?

Endocrinology allows Dr. Oppenheimer to work long-term with patients while helping them manage hormone-related disorders. He enjoys building relationships and helping patients achieve their goals. He also enjoys the flexibility his practice provides, such as helping people with diabetes adjust insulin doses over the phone and personally performing ultrasound diagnostics. He strives to offer cost-effective solutions and to always give patients more than they expect.

Phone: (605) 275-6525    Fax: (605) 275-6970


We are now providing outreach service in

Watertown, SD at Northridge Brown Clinic!

Call (605) 275-6525 for more information!