About
H. Mark Lickey, MD, IFMCP, trained in internal medicine at Yale University, where he stayed an additional year to serve as chief resident. He earned his medical degree at Loma Linda University, whose motto, To Make Man Whole, shaped his approach to patient care. He spent his first 11 years of practice in northern Idaho working predominantly with a geriatric population. After relocating to Nashville in 2012, he expanded his experience across a more diverse adult patient base.
Dr. Lickey is an IFM Certified Practitioner with a deep interest in nutrition and lifestyle medicine. Those interests drew him to functional medicine and ultimately to MaxWell Clinic, where he applies whole-person care to complex and chronic conditions. He has particular expertise with geriatric and adult populations and has co-presented clinical webinars on brain health alongside Dr. Haase.
Education & Training
Medical School
Loma Linda University, MD
Residency
Internal Medicine, Yale University (Chief Resident)
Certifications
Conditions Treated
Who is Dr. Lickey right for?
Dr. Lickey is a strong fit for adults managing complex or chronic conditions. Patients with a history of geriatric care needs or age-related health concerns benefit from his extensive background. He works well with patients who want nutrition and lifestyle medicine woven into their care. His whole-person approach suits adults seeking root-cause answers to long-standing health challenges.
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Frequently Asked Questions
Dr. Lickey treats complex and chronic conditions in adults, with particular expertise in geriatric and age-related health concerns. His clinical focus includes internal medicine, functional medicine, and preventive care. He also addresses conditions rooted in nutritional deficiencies and lifestyle factors.
Dr. Lickey holds the IFM Certified Practitioner (IFMCP) credential from the Institute for Functional Medicine. He trained in internal medicine at Yale University and served as chief resident there.
Dr. Lickey earned his medical degree at Loma Linda University and completed his internal medicine residency at Yale University. He stayed an additional year at Yale to serve as chief resident.
Dr. Lickey applies whole-person care to every patient. Loma Linda University's motto, To Make Man Whole, has guided his approach throughout his career. He integrates nutrition, lifestyle medicine, and functional medicine to address root causes rather than symptoms alone.
Dr. Lickey has deep experience with geriatric and older adult populations, built during eleven years of practice in northern Idaho. Since moving to Nashville in 2012, he has expanded his work across a broader adult patient base.
Yes, brain health is one of Dr. Lickey's clinical interests. He has co-presented clinical webinars on brain health alongside Dr. Haase at MaxWell Clinic.
Dr. Lickey integrates nutrition and lifestyle medicine as core components of his functional medicine practice. He views these as foundational tools for addressing chronic and complex conditions, not supplementary ones.
Doctor profile last updated March 21, 2026