Gregory P. Wittenberg, MD, FAAD, FACMS, is a native of Hot Springs, South Dakota. He attended the University of South Dakota School of Medicine where he graduated magna cum laude in 1994. Dr. Wittenberg then completed his internship at the Mayo Clinic in Rochester, Minnesota, and trained in dermatology at Henry Ford Hospital in Detroit, Michigan. He also completed a fellowship in Mohs Micrographic Surgery at Emory University in Atlanta, Georgia. Dr. Wittenberg is board-certified in dermatology and dermatologic surgery, a Fellow of the American Academy of Dermatology and of the American College of Mohs Micrographic Surgery and Cutaneous Oncology, and a member of the Alpha Omega Alpha Medical Honorary Society.

Dr. Wittenberg has practiced in Rapid City for 25 years and performed thousands of surgeries for both malignant and pre-malignant skin lesions. He values most the physician/patient relationship and the best outcome for the patient is always his primary objective. He considers his patients part of his family and strives so that each patient has access to the highest quality care. He acknowledges and appreciates his outstanding staff and partners in providing the best quality care in Rapid City and the surrounding area.

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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 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, consultant, 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.

Made for Shade is the heart and soul of Dr. Lycia Thornburg, who founded this in 2006, along with her partners at Rapid City Medical Center Skin Institute.  Dedicated to sheltering children from the damaging effects of the sun while fostering a love of outdoor play, Dr. Thornburg, and her team of volunteers, with the Made for Shade Foundation, have funded and supported over 34 shade structures in the Black Hills.  Along with prevention of skin cancer, Dr. Thornburg is focused on research and development with her partner Dr. Melody Eide and Dr. Blake Jones, on a study to evaluate biomarkers in patients with cancer.  This is an area of her practice that she is very passionate about and is attentive to her patients and community on the prevention and early detection of skin cancer.

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 – providing 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, whether medical or cosmetic, feel like red carpet guests, as she honors their inner beauty.

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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.

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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

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Dr. Noble was born and raised in Rapid City. He attended medical school at the University of South Dakota Sanford School of Medicine and completed his residency training in dermatology at the University of Kansas Medical Center.

Dr. Noble joined The Skin Institute at the Rapid City Medical Center in 2011. He is a board- certified dermatologist who enjoys helping patients in all aspects of general dermatology, including medical, surgical, pediatric, and cosmetic. He has a special interest in the prevention and treatment of skin cancer.

In his free time, Dr. Noble enjoys spending time with his family and relaxing in the great Black Hills.

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

44.05715085,-103.23122799191563

Allergy, Asthma, & Immunology Clinic

Map to this Location