Inside the Scripps Mercy Hospital physician corridor that has served Hillcrest since 1890, Mercy Medical runs a primary care clinic from the Fourth Ave medical office building one block south of San Diego's only Catholic hospital campus. The 4060 Fourth Ave address also houses San Diego Medical Group, with both clinics feeding the Scripps Mercy referral network for hospital admissions. Adult primary care covers hypertension, type 2 diabetes, and hyperlipidemia management along with annual wellness exams for patients in the 92103 and 92101 ZIP codes. Acute visits handle upper respiratory infections, UTIs, and minor musculoskeletal complaints that don't require the Level I Trauma Center three blocks north. The Hillcrest primary care corridor also includes Perlman Medical Group, routing specialist workups into the 3900 Fifth Ave MPMG specialty tower. Complex multi-system cases requiring inpatient care transfer to Scripps Mercy's Level I trauma and stroke programs on the adjacent campus.