Dual board certification in Addiction Medicine and Psychiatry, paired with California medical license A113283, anchors Dr. Joe Sepulveda's addiction-psychiatry caseload at the Hillcrest Family Health Center Annex on Third Avenue. Buprenorphine-based medication-assisted treatment for opioid use disorder forms the bulk of the panel, a substance-use specialty that intersects with the dual-diagnosis psychiatric prescribing handled by Advanced Psychiatry Associates. Sepulveda earned his MD from the David Geffen School of Medicine at UCLA in 2009 and completed his psychiatry residency at Stanford University from 2009 to 2013 before joining Family Health Centers of San Diego, the federally qualified health center network that operates the Annex. Methamphetamine and stimulant use disorder, alcohol use disorder, and co-occurring mood disorders all sit inside his treatment scope, with toxicology screening and contingency-management approaches built into the standard workflow. The collaborative care model at the Annex routes co-treatment cases to nurse-practitioner prescribers including Bryan Amaro, DNP-PMHNP for medication-management overflow. The most complex cases on his Annex panel are court-mandated patients with co-occurring opioid use disorder, severe mental illness, and unstable housing, where MAT induction must be coordinated alongside psychiatric stabilization and case-management resources inside a single FQHC visit.