David Charles Lozar, MD practices board-certified family medicine in Carlsbad at Kaiser Permanente's Avenida Encinas offices, offering trilingual consultations in English, Spanish, and Chinese. A 1996 graduate of Northwestern University Feinberg School of Medicine who completed his internship at Columbus Hospital and residency at McGaw Medical Center, he supports ENT referral coordination with specialists such as San Diego Ear, Nose & Throat Specialists. Affiliated with Kaiser Permanente Zion Medical Center and Palomar Medical Center, his practice addresses the full primary-care spectrum from pediatric wellness through geriatric chronic-disease management. Musculoskeletal evaluations pair with chiropractic co-management pathways through providers including NuSpine Chiropractic - Bressi Ranch for spinal-alignment and mobility concerns. Clinical scope includes patch-testing for contact dermatitis, spirometry-based pulmonary-function assessment, and diabetes-management protocols under ADA Standards of Care incorporating continuous glucose-monitoring data analysis.