Dr. Karanbir Brar operates A Personal Physician in Encinitas, a concierge internal medicine practice on Santa Fe Drive offering executive health assessments and longevity-focused primary care. Double board-certified through the American Board of Internal Medicine, Dr. Brar completed residency at AtlantiCare Regional Medical Center and neuro-intensive care training at UT Health Houston, bringing hospital-grade diagnostic acuity to outpatient care that complements the IV nutrient therapies at Hydration Room Encinitas. The practice holds active medical staff privileges at both Scripps Memorial Hospital Encinitas and Tri-City Medical Center, enabling Dr. Brar to consult on patients through hospital admission, skilled nursing, and assisted living transitions without handing off to unfamiliar hospitalists. The executive health program utilizes Fit3D body composition analysis, Prenuvo full-body 3D MRI screening, and Galleri multi-cancer early detection blood testing alongside subspecialized lab panels checking 100-plus biomarkers, a diagnostic depth that pairs with the medically supervised fitness programming at Alloy Personal Training Encinitas. Medically monitored weight-loss and diabetes-reversal protocols layer intermittent-fasting frameworks with serial metabolic panel tracking to quantify A1C reduction, lipid-profile shifts, and cardiovascular risk-factor elimination across 6- to 12-month treatment arcs.