Mark Williams Cocalis, MD

Dr. Mark Cocalis is a cardiovascular disease and critical care medicine specialist with over four decades of experience in cardiac care. He earned his medical degree from the prestigious University of California, Los Angeles David Geffen School of Medicine, where he also completed his residency training and advanced fellowship programs. His specialized fellowship training includes work at UCLA Mattel Children's Hospital, providing him with expertise in both adult and pediatric cardiovascular conditions. Dr. Cocalis speaks English fluently.

He practices at Doctors Medical Center of Modesto and maintains clinic locations throughout California, including Stockton, San Francisco, and Modesto. His clinical expertise focuses on treating complex heart conditions such as congenital heart disease, heart valve disease, and Eisenmenger syndrome. Dr. Cocalis performs advanced cardiac procedures including dobutamine stress echocardiograms, doppler echocardiograms, and angiograms to diagnose and …monitor heart conditions. Patients have given him an average rating of 4.9 out of 5, reflecting his commitment to quality cardiovascular care.