DIANE P SIEGEL PHD is categorized under PHYSICIANS & SURGEONS: PSYCHOLOGISTS and located at 3662 Katella Ave. Ste. 120 in or near the Los Alamitos, CA area. Find additional information including website, e-mail, map, and directions - OriginalYP.com®. Find additional PHYSICIANS & SURGEONS: PSYCHOLOGISTS at MedicalYP.com ®.