Dr. Wittenberg is a dermatologist specializing in Mohs micrographic surgery and has always had a passion for the challenges that come with surgery, including removal and reconstruction. He is originally from Hot Springs, South Dakota, where his dad practiced as a vet for over fifty years, but his education has led him to various parts of the United States.

He first attended the University of Oklahoma in Norman, Oklahoma and became certified as a physical therapist. After practicing for one year in Rapid City, he decided to pursue a career in medicine and attended the University Of South Dakota Sanford School of Medicine. After medical school, he completed an internship at Mayo Clinic in Rochester, Minnesota. He went on to complete his dermatology training at Henry Ford Hospital in Detroit, Michigan. Dr. Wittenberg completed his fellowship training in Mohs surgery at Emory University in Atlanta, Georgia. He is a fellowship trained and board certified dermatologic surgeon and has been practicing at Rapid City Medical Center since 1999.

Outside of work, he can be found with his wife and three girls. They enjoy being in the beautiful Black Hills and take part in numerous activities such as kayaking, hiking, running, and playing tennis. Traveling to the many great places the world has to offer is something they enjoy as a family.

Dr. Wittenberg’s considers his patients part of his family. His personal mission is to ensure that each patient is happy, healthy, and has access to the highest quality care in Rapid City and the surrounding area. He focuses on explaining each part of the surgical process to his patients, making sure they call with any questions. At the end of the day, as long as his patients are happy, he is happy.

2820 Mt. Rushmore Rd.
2nd Floor (Main Entrance)

44.05715085,-103.23122799191563

Allergy, Asthma, & Immunology Clinic

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Dr. Thornburg was born and raised in Waukesha, Wisconsin. She received her Bachelor of Science from the University of Wyoming, attended medical school at the Medical College of Wisconsin and completed her residency at the University of Iowa Hospitals and Clinics. She joined The Skin Institute at Rapid City Medical Center in 2004.

Dr. Thornburg specializes in general and pediatric dermatology, surgical dermatology, laser surgery and cosmetics, including Botox and Juvéderm. She also focuses on the early detection of skin cancers.

Dr. Thornburg has been elevating her cosmetic craft, showcasing her passion for aesthetics by earning Master Expert status at the AMI Master Training in Washington, D.C. in 2023. She was selected as faculty for the National Skincare Advisory Board and Filler Advisory Board for Allergan, the world’s leading scientific-backed manufacturer of aesthetic products. Dr. Thornburg has welcomed a national role for Allergan as speaker and instructor to other dermatology groups throughout the United States.

Dr. Thornburg has been selected to be a media expert for the American Academy of Dermatology (AAD) on all topics regarding skin. This is a national position, and she has had opportunities to represent dermatologists throughout the United States.

Her favorite quote is by Maya Angelou: “At the end of the day people won’t remember what you said or did, they will remember how you made them feel.” She draws on this philosophy daily in how she cares for her patients. That includes offering the best treatment available, educating patients on the tools necessary to achieve and maintain healthy skin and never forgetting the medical importance of the skin to overall patient-health. At the end of the day, Dr. Thornburg makes her patients, medical or cosmetic, feel like red carpet guests, and she honors the beauty within.

2820 Mt. Rushmore Rd.
2nd Floor (Main Entrance)

44.05715085,-103.23122799191563

Allergy, Asthma, & Immunology Clinic

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Dr. Sage practices dermatology at The Skin Institute at Rapid City Medical Center, with a fellowship training in Mohs micrographic surgery and cutaneous oncology. He also has a special interest in skin cancer and facial reconstruction. He is originally from Sioux Falls, South Dakota, and joined The Skin Institute in 2012. He is board certified in Dermatology and Mohs Micrographic Surgery.

He attended medical school at the University of South Dakota Sanford School of Medicine, followed by an internship at Sanford Hospital in Sioux Falls. He was trained in dermatology at Henry Ford Hospital in Detroit, Michigan, and completed a fellowship in Procedural Dermatology and Mohs micrographic surgery at the Medical University of South Carolina in Charleston, South Carolina.

Dr. Sage believes in providing the highest quality care in a patient-centered practice and tailors each patient’s treatment plan to their unique needs. He strives to ensure that patients are educated about their condition and empowers them to be an integral member of the care team. Patients are encouraged to ask questions about their diagnosis, the surgical process, and their expected results.

When he is not at work, he can be found with his family enjoying the many outdoor activities in the Black Hills. They enjoy playing at local parks, golfing, swimming, hiking, bike riding, downhill skiing and playing in the yard at home. They also spend their free time visiting state parks and monuments, tourist attractions and their family farm.

2820 Mt. Rushmore Rd.
2nd Floor (Main Entrance)

44.05715085,-103.23122799191563

Allergy, Asthma, & Immunology Clinic

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A native of Vermillion, South Dakota, Dr. Poling attended the University of South Dakota, where she earned a magna cum laude undergraduate degree in chemistry. 

After studying in Germany, she returned to Vermillion to attend medical school at the University of South Dakota Sanford School of Medicine. Following a one-year internal medicine internship at the University of Colorado, she began specialty training in dermatology at the University of Colorado-Denver.

She completed specialty training and joined The Skin Institute at Rapid City Medical Center in 1994. Her special interests are in skin cancer, skin cancer prevention and cosmetic services. Dr. Poling strives to intently listen and address any and all concerns with her patients. She believes each patient should be treated with respect and dignity, just as you would treat a family member.

Dr. Poling enjoys scuba diving, vertical caving, tending to her succulents, and hiking.

2820 Mt. Rushmore Rd.
2nd Floor (Main Entrance)

44.05715085,-103.23122799191563

Allergy, Asthma, & Immunology Clinic

Map to this Location