Certified Addiction Specialist Paul L. Houston practices from 7155 Mission Gorge Rd in Grantville, San Diego, CA 92120, within a medical office complex on the Mission Gorge Road commercial corridor. The CAS designation indicates specialized training in substance use disorder assessment, treatment planning, and recovery support services, addressing alcohol dependence, opioid use disorder, and co-occurring mental health conditions that require integrated clinical attention. Ketamine-assisted therapy and other emerging modalities for treatment-resistant depression and substance use are available through Resilience Integrative Wellness - Ketamine Clinic in Grantville, which operates a complementary protocol for patients whose recovery plans benefit from pharmacological augmentation. Mission Gorge Road runs north through Grantville toward Mission Trails Regional Park, and the 7155 block sits in the commercial stretch between Fairmount Avenue and the Grantville trolley station, giving patients on the Green Line a direct transit route to addiction treatment appointments. Addiction specialist caseloads in the 92120 ZIP serve patients from Allied Gardens, Grantville, and the adjacent La Mesa border, where the Interstate 8 corridor provides freeway access from eastern San Diego County. Musculoskeletal pain management is a common co-occurring concern in addiction treatment, and referrals for non-pharmacological pain relief route to Pittman Chiropractic in Grantville, which delivers spinal manipulation and soft-tissue therapy as part of a multimodal pain reduction approach. The Grantville stretch of Mission Gorge Road concentrates medical, behavioral health, and rehabilitation services between the trolley station and the Alvarado Canyon Road interchange.