Drawing on more than 25 years of experience in medicine, this physician provides multidisciplinary expertise in pulmonology, internal medicine, critical care, and sleep medicine, with clinical specialization in pulmonary function testing, sleep studies, and the diagnosis and management of sleep apnea and related disorders. His work spans outpatient, inpatient, and intensive care settings, supported by a longstanding private practice established in 1999, where he has treated complex respiratory and sleep-related conditions and coordinated multidisciplinary patient care. His background also includes extensive leadership in sleep medicine, having served as medical director and co-medical director of multiple sleep disorder centers, overseeing diagnostic and therapeutic protocols including CPAP therapy and sleep disorder management. In addition to clinical practice, he has contributed to research involving pulmonary alveolar epithelial cell function, including mechanisms of ion transport, intracellular pH regulation, and cellular growth and differentiation, reflecting a strong foundation in both applied and investigative pulmonary science.

Complementing his clinical and research work, he has held significant leadership roles within hospital systems, including chief of staff, medical director of critical care units, and chairman or member of multiple committees such as medical executive, pharmacy and therapeutics, infection control, and interdisciplinary practice committees, contributing to clinical governance and institutional policy development. His academic involvement includes service as an assistant clinical professor of medicine, along with authorship of book chapters, clinical reviews, and research publications, and participation in scientific presentations. In a medico-legal context, he has over 5 years of expert witness experience and has served as a Qualified Medical Examiner for the State of California since 2001, providing consultation and testimony in cases involving medical malpractice, wrongful death, and personal injury related to pulmonary and sleep-related conditions. He is board certified in internal medicine, pulmonary medicine, critical care medicine, and sleep medicine, and holds a Doctor of Medicine degree with residency training in internal medicine followed by fellowship training in pulmonary and critical care medicine and advanced training in sleep medicine, supporting a comprehensive and well-established medical and legal expertise.