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Your First-Choice Gastroenterology Physicians in Western South Dakota

Local Care. Trusted Physicians. No Referral Needed.

At Rapid City Medical Center, our GI Division is home to the largest group of board-certified gastroenterologists in Western South Dakota. We proudly serve the Black Hills and surrounding areas, offering expert care backed by years of advanced training and experience.

Whether you’re experiencing gastrointestinal symptoms or seeking preventive care, our team is here for you. When you choose RCMC for gastroenterology, you’re choosing trusted local physicians, quicker access to care, and treatment plans tailored to your needs. No referral necessary.

Meet Our Providers

Our team of highly skilled, board-certified gastroenterologists brings together years of experience, advanced training, and a shared commitment to exceptional patient care. Working collaboratively, we ensure that every step of your journey—from diagnosis to treatment and follow-up—is coordinated, personalized, and seamless. With deep roots in the community, our physicians are here for you, offering consistent, compassionate care you can count on.

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Oksana Aleksenko, MD

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Erik Raborn, DO

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Andrew Kelts, DO

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Nathan Jaqua, MD

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Blake Jones, MD

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Emily Baertsch, DNP, FNP

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Katie Ingle, DNP, FNP

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Elizabeth Larson, DNP, FNP

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Kristin Bierle, DNP, FNP

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Colette Gorder, MSN, FNP-C

What Makes Us Different?

At RCMC Gastroenterology, we offer more than just expertise—we offer a seamless and supportive healthcare experience:

  • Be Seen Sooner: Fast access to appointments so you’re not waiting months for care.
  • Board-Certified Physicians with advanced training in gastroenterology and endoscopy
  • Comprehensive in-house consultations and treatments
  • No Referral Needed: You can call us directly—no need to wait on paperwork or third parties.
  • Compassionate Approach: We listen, we explain, and we involve you in your care decisions.
  • State-of-the-art procedures performed at The Endoscopy Center, our advanced ambulatory surgery center connected to Rapid City Medical Center.
  • Comprehensive Care: Diagnosis, treatment, and follow-up, all under one roof.

Conditions We Commonly Treat

  • Acid reflux / GERD
  • Irritable Bowel Syndrome (IBS)
  • Crohn’s Disease and Ulcerative Colitis (IBD)
  • Celiac Disease
  • Colon polyps and colorectal cancer
  • Liver disease, including Hepatitis B & C and fatty liver
  • Gallstones and gallbladder disease
  • Pancreatitis
  • Hemorrhoids
  • Swallowing disorders
  • Constipation and diarrhea

Gastroenterologists are specialists in the diagnosis and treatment of disorders affecting the digestive system, including the esophagus, stomach, intestines, liver, pancreas, and colon. We also perform a range of preventive and diagnostic procedures, including:

  • Colonoscopy
  • Upper endoscopy (EGD)
  • Capsule endoscopy
  • Hemorrhoid banding
  • FibroScan® for liver health

Book Your Appointment Today — No Referral Needed

Don’t wait weeks to get the answers you deserve. Our team is ready to help you feel better, faster—with expert digestive care that’s local, accessible, and compassionate.

Appointment Request

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(605) 342-3280

2820 Mt. Rushmore Rd.
3rd Floor

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