Our Providers


Dr. Prince
  Dr. Mark Prince received his Doctor of Medicine from the University of Tennessee, Memphis in 1973. He completed an internship as well as a residency with emphasis in Internal medicine and family practice at the University Hospital in Knoxville, TN. Dr. Prince has been Board Certified in Internal Medicine since 1982. He has worked at the Cheyenne VA Medical Center, Campbell County Hospital, and for Health Reach also based out of Cheyenne.

Cathy Fliris, DNP, FNP
  Cathy Fliris, DNP, Family Nurse Practitioner, provides medical care to the citizens of Niobrara County and those passing through Lusk in the Rawhide Rural Health Clinic.

Originally from Seattle, Washington, she headed to Alaska to work for the National Health Service Corps in Tanana on the Yukon River.  Cathy worked as a Registered Nurse for 24 years in a small hospital and an assisted living home. She also operated a business making custom arctic clothing, fished for salmon in the summer, helped her husband of 30 years, Bill, operate a dog mushing tour business and raised two sons, Brendan and Jesse.

After graduating with her Nurse Practitioner License from the Frontier School of Midwifery and Family Nursing, based in Hyden, Kentucky, she moved to Lusk with another National Health Service Corps scholarship.  Cathy obtained her Doctorate of Nursing Practice through the Rocky Mountain University of Health Sciences in Provo, Utah in 2010.

Dr. Falkenburg  

Dr. Falkenburg was born in Lusk and grew up on a rural ranch out of Harrison, NE. She graduated from Edgemont, SD for high school, attended Creighton University for her undergraduate years and then graduated in 2003 from University of South Dakota School of Medicine with her MD. She attended 3 years of specialized residency training in family medicine at Rapid City Regional Hospital. She then worked for eight years in Custer, SD. She enjoys the opportunity to return closer to home and care for a rural population. She primarily works in the clinic, but still enjoys offering emergency department care, as well.

She and her husband, Bryan Lange, reside on a ranch north of Harrison, NE, which borders the ranch she was raised on. They have 3 children.