Dr. Gary A. Weissberg, MD maintains a psychiatry practice on West Broadway in downtown San Diego's Columbia district. His clinical focus on mood disorders, ADHD, and obsessive-compulsive disorder in adults draws on more than five decades of practice since graduating from the University of Pennsylvania Perelman School of Medicine in 1975, and his hospital affiliation with Sharp Mesa Vista provides inpatient continuity for patients who also see specialists like Justin M. Nowell, MD within the Sharp system. Dr. Weissberg completed his psychiatry residency at the University of Pennsylvania Health System, where he trained in psychophysiological therapy and biofeedback techniques. His diagnostic workups for adult ADHD incorporate structured clinical interviews alongside psychometric instruments to differentiate attention-deficit presentations from anxiety-driven inattention. Exercise-based adjunct protocols for depressive and anxiety disorders parallel the structured fitness programming at Broadway Athletic and Swim Club on Broadway. Advanced treatment protocols include cross-titration sequencing of atypical antipsychotics with SNRI augmentation for treatment-resistant major depressive disorder under STAR*D-informed algorithms.