Family practice medicine is a medical specialty that provides continuing and comprehensive health care for all ages and genders. Trained in all areas of medicine, family practice providers can diagnose and treat most acute illnesses and help people effectively manage chronic medical problems. Family medicine providers include family physicians, physician’s assistants, and family nurse practitioners. Our dedicated staff of employees and practitioners are committed to providing you and your family with the highest quality healthcare. We provide a wide spectrum of health care services including urinary tract infections, depression, minor injuries, wellness and preventative care services. We offer in house laboratory, radiology and speech therapy services.

From pediatrics to geriatrics, our providers provide personal, comprehensive and continuing care, conveniently located close to home.

Services

Providers

Lynn Eskelson, MD

Dr. Lynn Eskelson (Dr. E) has been a Family Medicine/Emergency Room Physician for 30 years. He enjoys caring for babies to centurions, outpatient care, office surgery and urgent care. Before coming to Castle Rock, Dr. Eskelson practiced in Preston, Idaho for 25 years. His residency was at the University of Wyoming, Cheyenne and the University of Utah, Ogden component.

Dr. Eskelson is married, has five children and 16 grandchildren. In his spare time, he enjoys spending time with his family, the outdoors, camping, hunting, fishing, downhill skiing, scouting, and doing church activities.

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Joe Amy, PA-C

Joe was born and raised in Corry, PA. He graduated cum laud Cannon University Physician Assistant Program in 1982 where he specialized in Family Practice. He moved to Lander, Wyoming in 1983.

Joe has worked at Castle Rock Medical Center since 1995. As a Physician Assistant, he specializes in Family Practice medicine. He also provides Occupational Medicine and DOT physical exams.

His interests include photography, hunting, fishing, camping, biking and Cowboy Single Action Shooting. He has served as President, Vice-President, Secretary and Board Member of the Wyoming Association of Physician Assistants.

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Brenna Kirsch, DNP

Brenna Kirsch, DNP, APRN, FNP-BC, NCMP, ABHRT

Brenna Kirsch obtained her Bachelor of Science in Nursing from Montana State University in 2010 she then went on to obtain her Master of Science in 2014 and then her Doctor of Nursing Practice in 2021 from Frontier Nursing University. Brenna, her husband, and their two daughters love spending time outdoors hiking, camping, fishing, and floating the Green River. They started careers in the area in 2010 relocated to Gillette in 2012 and then chose to return to the area in 2019.

Brenna has been practicing as a Family Nurse practitioner since 2015. Her first practice was in obstetrics and gynecology in Gillette, WY where she developed a passion for helping Women achieve their best health. She Joined the Castle Rock Medical Center staff in 2019 and has been providing primary care to patients of all ages. Since joining the Castle Rock Medical Center, Brenna has obtained her Doctor of Nursing Practice, certification as a NAMS (North American Menopause Society) Certified Menopause Practitioner, and certification in Advanced Bioidentical Hormone Replacement Therapy. Brenna brings her passion and expertise to serve the Women of Sweetwater County and their families.

Jacob Jamsa, FNP

We are excited to welcome Jacob Jamsa to the CRMC team! Jacob joins us from Bountiful, Utah where he worked on the G.I., orthopedic and surgical floors as a Registered Nurse. He completed his BSN in Nursing at Weber State University and received his Master of Science in Family Nurse Practitioner from the University of Phoenix. Jacob provides primary and preventative care to patients of all ages and has a passion for helping and educating patients to live their healthiest lives.

Jacob is married and has three children. He enjoys the great outdoors and is looking forward to exploring the many hiking, fishing and camping opportunities that Wyoming has to offer.

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Joel Robertson, PA-C

Joel is a Wyoming native who graduated from Lovell High School in 2002. He then attended the University of Wyoming where he earned his bachelor’s degree in Nursing. While in Laramie attending the University of Wyoming he was deployed to Iraq with his Army National Guard Unit, where he also trained in Combat Life Saving. Joel was a member of the National Guard for eight years. Following his time in Laramie Joel received his Master of Science in Physician Assistant Studies from A.T. Still University in Mesa, AZ, in 2012.

Joel started practicing at Castle Rock Hospital District in September of 2012. As a Physician Assistant, he likes being able to get to know his patients and their families. He feels like the primary care setting gives him the opportunity to form trusting relationships with those he is caring for and he feels that is an important piece of good patient care.

Joel is married with four children. He loves fishing, hiking, sports, guitars, and most of all spending time with his family.

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Kris Sherwin, PA-C

“Service to others extends beyond my professional life. As a member of the community, I participate to make a positive difference by volunteering in multiple youth organizations including Girl Scouts, Boy Scouts, high school sports teams and Church youth activities.”

Kris has been a Physician Assistant at CRMC since 2000. Her broad scope of practice includes wellness exams, acute care, management of patients with multiple chronic health issues and a special interest in treating skin disorders. She enjoys building relationships with patients as their primary care provider. She received her Bachelor of Medical Science in Physician Assistant Studies from Midwestern University in Downers Grove, IL.

Kris and her husband have two children. As a family they enjoy camping and travel. Involvement in their local Church parish keeps them busy.

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