Dr. Derrick Johnson is originally from the Cleveland, Ohio area and attended Kenyon College, where he earned a Bachelor of Arts degree in Molecular Biology.  Following his undergraduate program, he went on to work at Case Western Reserve University conducting research in the area of Alzheimer's disease treatments at the cellular level.  Dr. Johnson then earned his M.D. after attending the University of Cincinnati College of Medicine.  He completed his residency in Internal Medicine at Riverside Methodist Hospital in Columbus, Ohio.  He is board certified in Internal Medicine.