Dr. Gamache served her internship and residency in internal medicine, and her fellowship in cardiology, at Methodist Hospital of Indianapolis. She was intern of the year in 1987 and served as president of the house staff council in 1989. She received her medical degree from the Indiana University School of Medicine, Indianapolis. She graduated from Purdue University, West Lafayette, Indiana.
Dr. Gamache has practiced in Indiana since 1993 and is the medical director of acute care in the north Indianapolis region.