About
Dr. Diane Rennirt, MD, brings more than 20 years of internal medicine experience to her Louisville practice. She earned her medical degree from the University of Louisville School of Medicine in 1998 and completed her residency in internal medicine at the University of Louisville Department of Internal Medicine. Earlier, she earned a Master of Science in Anatomical Sciences and Neurobiology from the University of Louisville Health Sciences Center in 1995. The American Board of Internal Medicine has certified her three times, most recently in 2020.
Dr. Rennirt holds a senior-level Aviation Medical Examiner designation with the Federal Aviation Administration, a role she has maintained for 17 years. She holds hospital affiliations at Norton Healthcare System, Baptist Hospital, and the University of Louisville. Her clinical interests span preventive care, women's healthcare, diabetes, hypertension, lipid disorders, and comprehensive skin care. Outside medicine, Dr. Rennirt rides dressage, runs regularly, and enjoys skiing, hiking, and travel.
Education & Training
Undergraduate
Spalding University, Bachelor of Science, 1986
Medical School
University of Louisville School of Medicine, Medical Degree, 1998
Residency
University of Louisville Department of Internal Medicine, Louisville, KY 1998-2001
Additional Training
University of Louisville Health Sciences Center, Masters of Science in Anatomical Sciences and Neurobiology, 1995; Senior level Aviation Medical Examiner for the FAA for 17 years
Certifications
Conditions Treated
Who is Dr. Rennirt right for?
Dr. Rennirt is well-suited for adults seeking a preventive-focused internist with deep experience in chronic disease management. Patients managing diabetes, hypertension, or lipid disorders benefit from her specific clinical expertise. Women seeking a physician attentive to women's health concerns will find a strong fit with her practice. Pilots and aviation professionals can turn to Dr. Rennirt for FAA medical examinations, given her 17-year designation as a senior-level Aviation Medical Examiner.
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Frequently Asked Questions
Dr. Rennirt focuses on diabetes, hypertension, and lipid disorders, along with preventive care, women's healthcare, and comprehensive skin care. She brings a strong preventive lens to managing chronic conditions before they progress.
Yes, Dr. Rennirt holds board certification from the American Board of Internal Medicine. She has maintained that certification three times, earning it in 2001, 2011, and 2020.
Dr. Rennirt earned her medical degree from the University of Louisville School of Medicine in 1998. She completed her internal medicine residency at the University of Louisville Department of Internal Medicine and holds a postgraduate master's degree in Anatomical Sciences and Neurobiology from the same institution.
Yes. Dr. Rennirt holds a senior-level Aviation Medical Examiner designation with the Federal Aviation Administration. She has served in this role for 17 years and can conduct FAA medical examinations for pilots and aviation professionals.
Dr. Rennirt holds affiliations at Norton Healthcare System, Baptist Hospital, and the University of Louisville.
Dr. Rennirt has practiced internal medicine for more than 20 years. Throughout her career, she has focused on competent, personalized care with a strong emphasis on wellness and prevention.
Doctor profile last updated June 9, 2026