Our Physicians

Dr. Culjat earned his B.S. at University of California San Diego and his M.D. at Chicago Medical School. He completed his Residency and his Pulmonary, Critical Care and Sleep Fellowship at USC Medical Center in 2007. Dr. Culjat is Board Certified in Internal, Pulmonary, Critical Care Medicine and Sleep Medicine. Dr. Culjat is fluent in Spanish and has moderate fluency in Croatian and Czech languages.

Dr. Ruihong Luo received her medical degree from Sun Yat-Sen University of Medical Sciences and practiced in China for seven years. Later she completed residency in Internal Medicine at University of Nevada School of Medicine in Las Vegas, and Infectious Diseases fellowship at Boston University and Boston Medical Center. Her practice focuses on general infectious diseases for inpatients and outpatients as well as HIV management. She is also interested in antibiotic utilization, hospital infection control and epidemiology. Dr. Luo speaks fluent English and Chinese including Mandarin and Cantonese.

Dr. Alfonso Padilla is a sleep medicine physician who practices in Santa Monica and Torrance. He is board certified in sleep medicine and pediatrics, and sees both adult and pediatric patients. Dr. Padilla treats all sleep disorders, including sleep apnea, insomnia, restless legs syndrome and circadian rhythm disorders. He practices evidence-based medicine and uses a pragmatic approach to help patients achieve the best long-term outcomes. He is also a clinical instructor in the David Geffen School of Medicine at UCLA.

Dr. Yen earned his B.E. (summa cum laude) at Vanderbilt University and his M.D. at the University of North Carolina at Chapel Hill. He completed his internship and residency at the Hospital of the University of Pennsylvania and Loma Linda University Children’s Hospital, and dual fellowship in Allergy/Immunology and Pediatric Rheumatology (autoimmune disease) at Ronald Reagan UCLA Medical Center. Dr. Yen is a board-certified allergist, immunologist, and pediatric rheumatologist who specializes in treating Adults and Children with allergic rhinitis, food and medication allergy, asthma, hives, angioedema, anaphylaxis, eczema, sinusitis, immunodeficiency diseases and related disorders. He has also received advanced training in treating Children with autoimmune diseases.