Holding California psychology license PSY28837 and enrolled in Medicare's PECOS provider system under NPI 1093122608, the Psychological Office of Dr. John Helmer serves La Mesa from 5360 Jackson Drive in the Grossmont medical corridor. Helmer's dual credentials as a PsyD and LCSW position the practice within the behavioral health referral network anchored by Fletcher Parkway Medical Center, enabling coordinated care for patients whose mental health conditions intersect with primary medical concerns. He earned his Doctor of Psychology from Alliant International University's San Diego Scripps Ranch campus and applies Cognitive-Behavioral Therapy and Acceptance and Commitment Therapy as primary modalities, supplemented by mindfulness and solution-focused techniques. Clinical specialization in veteran mental health and community behavioral health informs treatment of PTSD, adjustment disorders, and service-related anxiety, with musculoskeletal rehabilitation for veteran patients available through Grossmont Orthopedic Physical Therapy on the same Jackson Drive corridor. Highest-complexity cases involve integrated health psychology assessments for patients presenting with medically unexplained somatic symptoms, requiring differential evaluation across psychiatric, neurological, and functional dimensions to establish appropriate treatment pathways.