About
M. Dathan Chesnut, MD traces his commitment to Internal Medicine back to his earliest days in medical school. Patient relationships drew him to the specialty, and that motivation still shapes how he practices today. He earned his Bachelor of Science in Biology from the University of Kentucky in 1998, graduating Summa Cum Laude. He then completed his Doctorate of Medicine at the University of Louisville in 2004. His internship and residency in Internal Medicine both took place at the University of Louisville School of Medicine, finishing in 2007. During residency, he earned the highest score on the in-training exam in 2005. He also served as POD Leader for Continuity Clinic and sat on the Department of Internal Medicine Steering Committee. The American Board of Internal Medicine granted him board certification, and he holds memberships in the American College of Physicians, the Kentucky Medical Association, and the Greater Louisville Medical Society.
Now in his twelfth year of practice, Dr. Chesnut focuses on unhurried visits and individualized wellness planning. He wants every patient to have time to address all of their concerns in a single appointment. An avid cyclist and triathlete, he understands firsthand how to balance physical demands with work and family life. He brings that perspective to patients working toward their own health and fitness goals. Outside the office, he is the father of two young children.
Education & Training
Undergraduate
University of Kentucky, B.S. Biology, Summa Cum Laude, 1998
Medical School
University of Louisville, Doctorate of Medicine, 2004
Residency
Internal Medicine, University of Louisville School of Medicine, 2005-2007
Additional Training
Internship, University of Louisville School of Medicine, 2004-2005
Certifications
Who is Dr. Chesnut right for?
Dr. Chesnut is a strong fit for adults who want a physician who knows them personally and stays accessible between visits. Patients managing chronic conditions benefit from his proactive, prevention-focused approach. He works well with individuals who want a detailed wellness plan built around their specific goals. Adults who value unhurried appointments and direct after-hours access will find his practice well-suited to their needs.
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Frequently Asked Questions
Dr. Chesnut specializes in Internal Medicine with a strong focus on preventive care and individualized wellness planning. He delivers comprehensive health screenings and diagnostic testing as part of each member's care. His goal is to build long-term relationships with patients and help them achieve their specific health goals.
Yes. Dr. Chesnut holds board certification from the American Board of Internal Medicine. He completed his residency training in Internal Medicine at the University of Louisville School of Medicine and earned the highest score on the in-training exam during his residency in 2005.
Dr. Chesnut completed all of his medical training in Kentucky. He earned his medical degree from the University of Louisville in 2004. His internship and Internal Medicine residency both took place at the University of Louisville School of Medicine, concluding in 2007.
Yes. Dr. Chesnut makes himself available to members by phone after hours and on weekends. Members can contact him directly for urgent concerns without waiting for the next business day.
Dr. Chesnut maintains hospital affiliations with Norton, Baptist, and Kentucky One in the Louisville area. Those relationships allow him to coordinate care and stay connected with patients who require hospital-level services.
Dr. Chesnut delivers a comprehensive wellness program that includes advanced health screenings and diagnostic tests. He uses those results to build individualized wellness plans for each patient. The screenings and tests go beyond what most standard preventive visits include.
Dr. Chesnut sees adult patients across a range of health needs. He works with patients managing chronic conditions, those focused on prevention, and individuals building toward specific wellness or fitness goals. His practice suits adults who want a physician invested in their long-term health.
Dr. Chesnut has been practicing medicine for more than twelve years. He completed his residency in 2007 and has spent his career in Internal Medicine, focused on building lasting relationships with his patients.
Doctor profile last updated April 11, 2026