Dr. Valerie A. Williams

Carl Backer is a Thoracic Surgeon in Cincinnati, Ohio. Dr. Backer is highly rated in 16 conditions, according to our data. His top areas of expertise are Vascular Ring, Double Aortic Arch, Atrioventricular Septal Defect, Heart Transplant, and Endoscopy. Dr. Backer is currently accepting new patients.

Dr. Mario Castillo-Sang is a a cardiac surgeon and director of the Advanced Valve Center and of the LVAD program at St. Elizabeth Healthcare in Edgewood, KY (greater Cincinnati area). He trained at Barnes-Jewish Hospital / Washington University in Saint Louis for Cardiac Surgery. He has focused his entire career to minimally invasive mitral valve surgery with emphasis on mitral valve repair, and heart failure therapy with LVADs. Dr. Castillo-Sang‘s program has achieved 3/3 stars from the STS for mitral valve care since 2019. He has performed over 800 minimally invasive operations and is passionate about dissemination of minimally invasive repair techniques. He is the creator of the only online minimally invasive mitral and tricuspid valve surgery course (www.miniheartvalves.com) for surgeons and allied health. He is a founding member and part of the steering committee for the Endoscopic Cardiac Surgery Club (www.ecsclub.org). Dr. Castillo-Sang has worked with industry to bring about new instruments and retractors for minimally invasive surgery and is a passionate speaker on minimally invasive endoscopic techniques. Dr. Castillo-Sang has lectured nationally and internationally on the topic of endoscopic valve surgery. Dr. Castillo-Sang is highly rated in 5 conditions, according to our data. His top areas of expertise are Mitral Valve Regurgitation, Atrial Myxoma, Mitral Stenosis, Patent Foramen Ovale Repair, and Heart Valve Repair.

Jason Frischer is a Pediatric Surgeon and a General Surgeon in Cincinnati, Ohio. Dr. Frischer is highly rated in 19 conditions, according to our data. His top areas of expertise are Hirschsprung Disease, Imperforate Anus, Bowel Incontinence, Colostomy, and Sacral Nerve Stimulation.