Meet Our Team

John Marshall Mullins, M.D.

For the last 20 years, Dr. Mullins served as the Cofounder and President of the MESA Medical Group, the largest provider of Emergency and Hospitalist Physician Services in Kentucky. He specializes in recreating the manner in which medical services are delivered by instituting efficiency measures, programs based on accountability and results, and unwavering customer service.

With his expertise and knowledge, Dr. Mullins started Marshall Lifestyle Medicine, conceptualizing a new way of viewing health, aging, happiness and balance. Through the power of technology and concierge care, Dr. Mullins focuses on putting patient needs first and helping you to look, feel and perform your best.

Richard Miller D.O.

Dr. Miller is a board-certified Internal Medicine physician. He received his undergraduate degree from The University of Texas at Austin and his medical degree from The University of North Texas Health Science Center – Texas College of Osteopathic Medicine. Dr. Miller completed his residency in Internal Medicine at LewisGale Hospital Montgomery in Blacksburg, Virginia, where he also served as a Hospitalist physician and faculty member for the residency program. He and his wife, Amanda, moved to Lexington in 2023 with their dog, Bear. Dr. Miller enjoys spending time with his family, golf, exercise and traveling. 

Jared Harper, PA-C

Jared Harper is a Physician Assistant with a passion for longevity medicine. He received his undergraduate degrees from Eastern Kentucky University in Spanish and Biomedical sciences and his PA-C/MSPAS from The University of Kentucky. He previously worked in family medicine for six years. Jared transitioned to working with Dr. Mullins, where he can focus on his clinical interests of integrative medicine, health span, longevity medicine, and biohacking. He and his wife, Megan, moved to Lexington in 2022 with their dog, Mac. Jared enjoys weight training, hiking, and traveling during his free time.