Dr. Francisco Antonio Sarabia Halili Jr. is a board-certified internal medicine physician and hospitalist practicing in Honolulu, Hawaii, focused on comprehensive, evidence-based care for adult patients during acute inpatient stays. He earned his medical degree from the University of Miami Leonard M. Miller School of Medicine after undergraduate training in biomedical engineering, and completed his internal medicine residency at Huntington Hospital (Cedars-Sinai) in Pasadena, California. Dr. Halili practices as a hospitalist with Hawaii Pacific Health, with attending privileges at The Queen's Medical Center and Kuakini Medical Center, and serves as an Assistant Clinical Professor in Honolulu. He is the founder and Chief AI Architect of BrAIn Health Systems, an AI co-pilot platform designed to make hospitals safer, more efficient, and more transparent, reflecting his long-standing interest in bridging engineering, clinical reasoning, and clinician-in-the-loop AI safety. At Lotus Health, Dr. Halili contributes hospital-medicine expertise to evidence-focused oversight and clinician-in-the-loop care quality.