Sean Denney, MD Cardiologist is an interventional cardiology specialist at Platte Valley Medical Group in Kearney, Nebraska, and has been practicing for over 18 years. He graduated from Hastings College with a Bachelor of Science degree. He then graduated from Creighton University School of Medicine, Omaha, Nebraska, in 1999 completing his residency there in 2002. He also completed a fellowship in Cardiovascular Disease at Creighton University School of Medicine. Dr. Denney specializes in interventional cardiology and is affiliated with multiple hospitals in the area. Dr. Denney is originally from McCook, Nebraska.