Specializing in PTSD and trauma recovery on Fletcher Parkway in La Mesa, Whitney Willis, Counselor operates within the LifeStance Health network to deliver evidence-based psychotherapy for veterans, first responders, and justice-involved individuals. CBT, DBT, and exposure-therapy protocols structure the LCSW-level treatment approach for clients with co-occurring substance use disorders and mood dysregulation, a dual-diagnosis framework that complements the residential stabilization model at Jackson House La Mesa Mental Health Treatment Center. LifeStance Health, a multi-state behavioral health organization, supports this Fletcher Parkway location with integrated psychiatric prescribing, telehealth scheduling, and cross-provider coordination across its La Mesa office suite. Clinical scope extends to postpartum depression and anxiety, reproductive challenges, midlife transitions, and grief — with particular depth in family-based interventions addressing the relational impact of trauma on spouses, adolescents, and aging parents. Somatic trauma responses often require coordinated care between psychotherapist and movement specialist, a treatment pathway this practice shares with orthopedic rehabilitation providers like Rehab United - La Mesa for clients recovering from injury-linked PTSD. Highest-acuity cases involve structured exposure-and-response protocols for combat-related PTSD with co-occurring polysubstance dependence, requiring sequential desensitization, cognitive restructuring, and crisis-safety planning across extended treatment arcs.