All our professionals at Tipton and Unroe maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest trends in podiatry.


Dr. Bradford Unroe

Dr. Unroe moved to Louisville in 1992 to practice Podiatric Medicine with Dr. Tipton. He graduated from Miami University in 1984 with a dual Bachelor of Arts in Zoology and Political Science. His Doctorate degree was from the Ohio College of Podiatric Medicine in 1989 and then he underwent a three year reconstructive surgical residency program at Wayne State University's Detroit Medical Center. He is currently an officer of the American Diabetes Association and holds the position of President-Elect Health Care and Education of the Southern Region. He is married to Dr. Lilly Unroe and they have 3 children. Drs. Tipton and Unroe together as partners have developed a successful practice which specializes in courteous, efficient and comprehensive foot and ankle care.


Dr. Ryan Lemmenes

Dr. Lemmenes moved to Louisville and joined the practice in 2004. Dr. Lemmenes and his wife are both graduates of the University of Evansville in Indiana. He obtained his Podiatry degree from the Scholl College of Podiatric Medicine in Chicago in 2002. His surgical training was completed at St. Vincent Mercy Medical Center in Toledo, OH. In his spare time he enjoys running, water skiing and football.


Dr. Nate Winters

Dr. Nate Winters joined the practice in 2020. An Ohio native, Dr. Winters completed his undergraduate degree in chemistry at Mount Vernon Nazarene University and received his Doctorate of Podiatric Medicine from Kent State University College of Podiatric Medicine. He then went on to complete a three-year residency at the Department of Veteran's Affairs Medical Center in Dayton, Ohio, where he received extensive training in foot and ankle surgery and diabetic limb salvage. Dr. Winters specializes in treating diabetic foot infections and wounds but enjoys treating all conditions of the foot and ankle. Outside of work, Dr. Winters enjoys running, biking, working on cars, and spending time with his wife and children.


Dr. Sara Millar

Dr. Sara Millar is a board-certified foot and ankle surgeon from Chicago, Illinois. After attending the University of Iowa, she completed podiatric medical school at Des Moines University at the College of Podiatric Medicine and Surgery. After graduating she pursued her residency training in Miami, Florida at Larkin Hospital completing a three-year residency with added qualification in reconstructive rearfoot and ankle surgery. Dr. Millar has interest in all foot and ankle conditions and has the training and knowledge to diagnose and treat surgically and conservatively.

Outside of medicine, Dr. Millar is active in cycling, hiking, and health and wellness. She understands how important it is to get back on your feet, and will work with you on an individual level to understand the pathology behind your pain and work with you to resolve and prevent future problems.

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Hours of Operation

Our Regular Schedule


8:30 am-4:30 pm


8:30 am-4:30 pm


8:30 am-4:30 pm


8:30 am-4:30 pm


8:30 am-3:30 pm





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