Dr. Krishnan is originally from Fort Myers, Florida. He earned his Bachelor of Arts degree from Northwestern University in Evanston, Illinois. He returned to Florida to complete his medical education at the University of Central Florida College of Medicine, where he graduated at the top of his class and was inducted into the Alpha Omega Alpha Honor Society.

He completed his general surgery internship and urology residency at the University of South Florida Health in Tampa. Throughout his training and career, Dr. Krishnan has contributed extensively to urologic research and has presented at national meetings.