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St. Luke's Expands Heart and Vascular Care with Addition of Three St. Luke's Medical Group Physicians

Drs. Baig, Kossidas and Peterson are accepting new patients.
Chesterfield, Mo. , September 25, 2020
St. Luke’s continues to expand its heart and vascular care services with the addition of three St. Luke’s Medical Group physicians: Sara Baig, MD, FACC; Konstantinos Kossidas, MD; and Brian Peterson, MD, FACS, FSVS

Sara Baig, MD, FACC, is a board-certified cardiologist and internal medicine physician who practices general cardiology and treats patients with a variety of cardiac issues. She has a special interest in women’s heart disease management and cardiac imaging. Baig earned her medical degree from the University of Missouri – Kansas City School of Medicine. After finishing her residency at Tufts University School of Medicine, she completed her cardiology fellowship at the University of Missouri – Columbia and an advanced fellowship in cardiac imaging at the University of California at San Francisco School of Medicine. 

Konstantinos Kossidas, MD, is a board-certified electrophysiologist who specializes in performing complex ablations for heart rhythm disorders including atrial fibrillation and ventricular arrhythmias. Kossidas earned his medical degree with honors from the University of Athens Medical School in Athens, Greece. Following his internal medicine residency at Lenox Hill Hospital in New York, he was accepted as a T-32 research fellow at the Cardiovascular Research Center at Rhode Island Hospital in affiliation with Brown University. He also completed specialty training in cardiology at Christiana Care Health System in Newark, N.J. and cardiac electrophysiology at the University of Michigan. 

Brian Peterson, MD, FACS, FSVS, is a board-certified vascular surgeon who has been practicing in the St. Louis area since 2006. He utilizes a variety of surgical and minimally invasive procedures to treat patients with abdominal aortic aneurysms, carotid artery disease, peripheral artery disease and other arterial conditions. He also treats the full spectrum of venous disorders, including varicose veins and deep vein thrombosis (DVT). Peterson earned his medical degree from Saint Louis University School of Medicine and completed his residency and vascular surgery fellowship at McGaw Medical Center of Northwestern University. 

About St. Luke's Hospital:
St. Luke's Hospital is an independent, nonprofit healthcare provider committed to improving the quality of life for its patients and the community. Since its founding in 1866, St. Luke's has grown from a single hospital location to an advanced network of care providing personalized healthcare services in over 60 specialty areas at its 493-bed hospital in Chesterfield, Mo. and 143-bed St. Luke's Des Peres Hospital. It also offers more than 30 other locations across the greater St. Louis area, bringing quality healthcare services close to home. St. Luke's is nationally-recognized for quality care and consistently earns high patient satisfaction scores. In St. Louis, St. Luke's is the exclusive alliance provider for the nation's No. 1 heart hospital, the Cleveland Clinic Heart, Vascular and Thoracic Institute.


Cassandra Frederickson
Senior Media Relations Specialist
314-576-2428 (office)
314-823-1874 (pager)

232 S. Woods Mill Rd.
Chesterfield, Mo. 63017