Licensed psychologist. Dr. Hamlin is a clinical psychologist in private practice in Santa Clarita, California. Also provides online classes.

Dr. Greg Hamlin is a therapist, Santa Clarita psychologist, and marriage counselor. Also known as "the Depression Doctor" and "the Anxiety Doctor" in Santa Clarita, California, he provides individual and couples therapy, online classes on depression, panic attacks, and marriage satisfaction. Free memberships to his resource collection at StepsForChange.com.