About
A. in Psychology from Southern Methodist University in 2004. He completed post-baccalaureate training at the University of North Texas Health Sciences Center before earning his medical degree with Honors from Ross University School of Medicine in 2011. He completed his intern year at Emory University in Family Medicine, then finished his residency in Family Medicine at the University of Arizona.
After residency, Dr. Horzempa pursued a Fellowship in Integrative Medicine at the University of Arizona under Dr. Andrew Weil. He trained on-site, one of only a handful of physicians to complete the program in that format, joining roughly 1,000 physicians worldwide who hold that distinction. The fellowship covered nutrition, sleep physiology, herbal and botanical medicine, Traditional Chinese Medicine, Ayurvedic Medicine, Exercise Physiology, Osteopathic Manual Medicine, and stress reduction. He later practiced family medicine in rural Canada before returning to Tucson to found the Arizona Institute of Integrative Medicine in 2018. Dr. Horzempa also holds specialized training in the Bredesen ReCODE Protocol through MPI Cognition and the Institute for Functional Medicine, and Dr. Bredesen's organization lists him on its website. His clinical passions include disease prevention, sleep physiology, longevity, nutrition, hormonal optimization, heart rate variability analysis, and functional medicine. Outside the clinic, he enjoys Tucson's outdoor life year-round and studies movement arts including gymnastics and martial arts. He lives with his wife, daughter, and dog.
Education & Training
Undergraduate
Southern Methodist University, B.A. in Psychology (2004)
Medical School
Ross University School of Medicine (graduated with Honors, 2011)
Residency
Family Medicine, University of Arizona
Fellowship
Integrative Medicine, University of Arizona (under direction of Dr. Andrew Weil)
Additional Training
Post-Baccalaureate, University of North Texas Health Sciences Center; trained in Bredesen ReCODE Protocol through MPI Cognition and the Institute for Functional Medicine
Conditions Treated
Who is Dr. Horzempa right for?
Dr. Horzempa is a strong fit for adults seeking a physician who investigates root causes rather than managing symptoms. Patients dealing with chronic conditions such as metabolic syndrome, thyroid disease, autoimmune disease, or digestive disorders benefit from his functional medicine approach. He is particularly well-suited for patients interested in longevity, hormonal optimization, and nutrition-based interventions. Those concerned about cognitive decline or at risk for Alzheimer's disease benefit from his Bredesen ReCODE Protocol training. Patients who want direct access to their doctor and unhurried, hour-long appointments will feel at home in his practice.
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Frequently Asked Questions
Dr. Horzempa treats a wide range of conditions including diabetes, hypertension, metabolic syndrome, thyroid disease, hormone imbalances, autoimmune disease, cardiovascular disease, and neurodegenerative disease. He also has focused expertise in cognitive decline and Alzheimer's disease through the Bredesen ReCODE Protocol. He addresses digestive disorders including IBS and IBD, as well as migraines, fibromyalgia, and allergies.
Dr. Horzempa focuses on identifying root causes of disease rather than treating symptoms in isolation. He builds individualized treatment plans that may include dietary changes, targeted supplementation, herbal medicine, exercise programs, sleep optimization, and hormonal balancing alongside conventional therapies. Every plan reflects the patient's unique biology, history, and lifestyle.
Dr. Horzempa earned his medical degree from Ross University School of Medicine, graduating with Honors in 2011. He completed his Family Medicine internship at Emory University and his residency at the University of Arizona. He then completed an on-site Fellowship in Integrative Medicine at the University of Arizona under Dr. Andrew Weil.
Yes. Dr. Horzempa trained in the Bredesen ReCODE Protocol through MPI Cognition and the Institute for Functional Medicine. He applies this protocol with patients experiencing cognitive decline or at risk for Alzheimer's disease. Dr. Bredesen's organization lists him on its website as a trained provider.
Dr. Horzempa schedules all appointments for 60 minutes. First visits may run 60 to 90 minutes. That time allows him to review a patient's full history, explore lifestyle factors, and build a comprehensive care plan.
Yes. Dr. Horzempa gives patients direct access via his personal phone, email, text, and the patient portal. Members can reach him any time, not just during scheduled office hours.
Dr. Horzempa completed his Integrative Medicine fellowship on-site at the University of Arizona, which only a handful of physicians have done. Most participants complete the program through distance learning. Approximately 1,000 physicians worldwide hold this fellowship credential. His training spanned nutrition, sleep physiology, herbal medicine, Traditional Chinese Medicine, Ayurvedic Medicine, Osteopathic Manual Medicine, and stress reduction.
Yes. Dr. Horzempa offers IV Nutrient Therapy as part of the practice's treatment options. The infusions include B vitamins, Vitamin C, Glutathione, and NAD+. He tailors the nutrient blend to each patient's health goals and clinical needs.
Dr. Horzempa is deeply interested in longevity science, sleep physiology, hormonal optimization, and movement and exercise physiology. He is also passionate about heart rate variability analysis, mind-body medicine, functional medicine lab interpretation, and personalized nutrition strategies including ketogenic, fasting mimicking, and time-restricted eating protocols.
Doctor profile last updated June 8, 2026