About
Dr. Jason Caswell earned his undergraduate degree from Alma College in Alma, Michigan before completing his medical degree at Wayne State University School of Medicine in Detroit. He began his residency training in Internal Medicine at SAUSHEC, then transferred to the University of Wyoming Family Medicine Residency, where his peers selected him as Chief Resident.
Dr. Caswell holds board certification in Family Medicine through the American Board of Family Medicine, earned in 2019. He also holds an Advanced Trauma Life Support (ATLS) instructor endorsement from the American College of Surgeons, a distinction he earned in 2009 as the youngest physician the organization had ever granted that honor. The DEA granted him an expanded DEA number to prescribe all controlled substances, including buprenorphine for opiate use disorder. S. Air Force originally brought him to Cheyenne, where he has spent the last decade building his practice and his life. He loves country music, keeps beagles, and spends his time outdoors hiking and fishing. He also enjoys woodworking and building and fixing things around the home. A regular at Cheyenne Frontier Days, he is deeply rooted in the community he serves.
Education & Training
Undergraduate
Alma College, Alma, MI
Medical School
Wayne State University School of Medicine, Detroit, MI
Residency
SAUSHEC Internal Medicine PGY-1; University of Wyoming Family Medicine Residency - Chief Resident PGY-2
Additional Training
Advanced Trauma Life Support (ATLS) Instructor, American College of Surgeons (2009-present) - youngest doctor ever granted endorsement to teach this class
Certifications
Conditions Treated
Who is Dr. Caswell right for?
Dr. Caswell serves patients from infancy through senior years, making him a strong fit for families seeking a single physician for all ages. Adults managing chronic conditions like hypertension, diabetes, or joint pain benefit from his hands-on, longitudinal approach. He is especially well-suited for patients navigating substance use disorder or mental health concerns, including those who need in-office medical detox or suboxone management. Patients who want a physician willing to come to them, suture a laceration at home, or handle urgent care needs without an ER visit will find his approach practical and responsive.
Frequently Asked Questions
Dr. Caswell treats a broad range of conditions, including hypertension, diabetes, joint pain, acute illness and injury, mental health concerns, and substance use disorders including opiate use disorder. He also manages chronic disease, performs minor surgical procedures like sutures and biopsies, and provides COVID-19 testing and treatment.
Yes. Dr. Caswell holds board certification in Family Medicine through the American Board of Family Medicine, which he earned in 2019.
Dr. Caswell earned his medical degree at Wayne State University School of Medicine in Detroit. He completed an Internal Medicine PGY-1 year at SAUSHEC, then finished his Family Medicine residency at the University of Wyoming, where he served as Chief Resident.
Yes. The DEA granted Dr. Caswell an expanded DEA number that authorizes him to prescribe all controlled substances, including buprenorphine, commonly known as suboxone, for opiate use disorder treatment. He also offers in-office medical detox services.
Yes. Dr. Caswell makes house calls, including hands-on procedures like suturing lacerations at a patient's home. House calls during weekday business hours run $400 for up to three hours.
Dr. Caswell refers to a specialist only in three situations: when the specialist knows something he does not, when the specialist can perform something he cannot, or when the patient requests it. His broad training allows him to handle most clinical situations across all age groups.
The American College of Surgeons granted Dr. Caswell an endorsement to teach their Advanced Trauma Life Support course in 2009. At the time, he was the youngest physician the organization had ever granted that distinction. He has held that instructor status continuously since then.
Yes. Dr. Caswell sees patients from infancy through the senior years. His training and philosophy center on being the physician who can handle most anything for patients at any stage of life.
Doctor profile last updated April 10, 2026