About
Dr. Lonnie A. Teague brings an extraordinary range of experience to his family medicine practice in Casper, Wyoming. He earned a Bachelor of Science in Biology from the University of Central Arkansas. S. Army's 20th Special Forces Group. In the late 1990s, he worked as a missionary in Honduras, where he ran a hospital. That experience set him on the path to medicine.
Dr. Teague graduated medical school in 2005 as class president. He completed the Wyoming Family Practice Residency in Casper, earning recognition as outstanding resident all three years and serving as Chief Resident in his final year. He then spent 14 years in Emergency Medicine, also serving as Medical Director for the SRT Natrona County Sheriff's Office starting in 2008. In 2022, he left the ER to found BackCountry Doctor DPC. His faith shapes his clinical mission; he and his team aim to treat the whole person, body, mind, and spirit. He and his wife Michelle have two daughters and recently welcomed their first grandchild. Outside the clinic, he enjoys camping, hunting, fishing, backpacking, and winter sports.
Education & Training
Undergraduate
University of Central Arkansas, B.S. Biology
Medical School
Unknown (graduated 2005)
Residency
Wyoming Family Practice Residency, Casper, WY
Additional Training
U.S. Army medic, 20th Special Forces Group; Missionary work in Honduras running a hospital
Who is Dr. Teague right for?
Dr. Teague is a strong fit for individuals and families seeking thorough, unhurried primary care. Patients managing chronic conditions benefit from his extended appointments and whole-person philosophy. His Emergency Medicine background makes him well-suited for patients with complex or multi-system health concerns. Adults who value faith-centered care and a doctor who addresses physical, mental, and spiritual health will find his approach distinctive. Families looking for affordable direct care under one roof are a natural match for his practice.
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Frequently Asked Questions
Dr. Teague handles a broad range of primary care needs, including chronic disease management, wellness planning, and nutritional health. His 14 years in Emergency Medicine give him a strong foundation for managing complex and acute concerns. He addresses physical, mental, and spiritual dimensions of health as part of his whole-person approach.
Dr. Teague trained at the Wyoming Family Practice Residency in Casper, completing all three years with peer recognition as outstanding resident. He served as Chief Resident in his final year. His training and background ground him firmly in family medicine.
His path to medicine began in the late 1990s during missionary work in Honduras, where he ran a hospital. That experience convinced him to pursue medical school. He graduated in 2005 and built a career spanning Emergency Medicine, military service, and now direct primary care.
S. Army's 20th Special Forces Group. He also worked in wildlands fire suppression with the Kern Valley Hot Shots. His missionary work in Honduras, where he managed a hospital, ultimately led him to medicine.
Yes. Dr. Teague has served as Medical Director for the SRT Natrona County Sheriff's Office since 2008. He also spent 14 years practicing Emergency Medicine before founding BackCountry Doctor DPC in 2022.
Dr. Teague offers extended appointments rather than brief visits. This gives him time to work through complex medical issues and cover multiple concerns in a single visit. He personalizes each appointment to the individual patient.
Yes. Dr. Teague's Christian faith is central to his clinical philosophy. He and his team aim to treat the whole person, addressing physical, mental, and spiritual health together. Patients of all backgrounds are welcome at BackCountry Doctor DPC.
Dr. Teague works alongside his daughter Katie Reynolds, a registered nurse. Dawn Allan serves as Lab Technician and Michelle Teague manages the office. The team operates by appointment only at the Casper, Wyoming clinic.
Doctor profile last updated April 11, 2026