Dr. Sergey Lyass is a General Surgeon,Bariatric Surgeon and General Physician in Northridge, Los Angeles and has an experience of 41 years in these fields. Dr. Sergey Lyass practices at Dignity Health - Northridge Hospital Medical Center in Northridge, Los Angeles,Glendale Memorial Hospital And Health Center in Glendale 91204, Glendale CA and La Downtown Medical Center Llc in Los Angeles 90026, Los Angeles. He completed Fellowship from Cedars Sinai Medical Center in 2006,Residency from Cedars Sinai Medical Center in 2005 and Medical School from Second Moscow Ni Pirogov State Medical Institute in 1985. Some of the services provided by the doctor are: Appendicitis,colectomy,Lipomas,Pelvic Abscess and Adjustable Gastric Banding etc.