One Medical Primary Care Clinic in downtown San Diego occupies the corner of Columbia Street and B Street in the Columbia district, operating as part of the Amazon One Medical network. The clinic's integrated behavioral health model includes in-house mental health screening and treatment pathways that parallel the therapy-focused approach at bareWell in the downtown core. Affiliation with UC San Diego Health provides a structured specialty referral pipeline for complex cases requiring cardiology, endocrinology, or orthopedic consultation beyond the primary care scope. Onsite laboratory services at this Columbia Street location handle same-day blood draws, urinalysis, and rapid infectious-disease testing, with prescription fulfillment coordinated through digital pharmacy platforms including Capsule. Highest-complexity services include chronic disease management with longitudinal HbA1c tracking, thyroid function trending, and lipid-panel optimization under integrated EHR-driven clinical decision support algorithms.