Originally from Colorado, Dr. Underhill received his bachelor of science in Kinesiology from University of Colorado and his Doctor of Osteopathic Medicine from Des Moines University. He completed his Family Medicine residency at Mayo Clinic Arizona in Scottsdale, where he served as chief resident. He also completed a Faculty Development Fellowship at University of Arizona, College of Medicine.

He has been on staff at Mayo Clinic and an Attending physician involved in training medical students and resident physicians in the valley. Dr. Underhill is a Medical Officer in the United States Army Reserve as well as serving as a volunteer physician for local youth sports programs and an inner city clinic for the underserved.

Dr. Underhill is certified by the American Board of Family Medicine and is a member of the American Academy of Family Physicians and American Osteopathic Association.

"William J. Mayo once said, 'The best interest of the patient is the only interest to be considered'. I believe this philosophy is the foundation for providing compassionate and competent care to the individual and their entire family. It is the basis of how I practice medicine."
Michael Underhill, DO