Dr. Flanigan was born and raised in Philadelphia. He attended Jefferson Medical College, followed by an internship at the University of Illinois. He served 2 years in the Navy as a physician to the midshipman at the Naval Academy. A residency at Georgetown University followed, then a Cardiology fellowship under the renowned Dr. Gilbert Blount at the University of Colorado.
Dr. Flanigan (a twin) with his wife Barbara (married for more than 40 years, also a twin, and maiden name Flanigan) had always planned to practice in the Philadelphia area, but fell in love with Colorado and never left. He had a hospital cardiology practice at St. Joseph and Presbyterian St. Luke’s hospitals until he joined HealthMark in 2012, which he says has been the best decision he has ever made.
He has 4 children and 10 grandchildren and all live within 10 minutes of him. Dr. Flanigan has had a long career in the sport of rowing, and was on the US national team competing in the World Championships, Pan-American games, and pre-Olympic Games, where he was silver medalist. While on the Olympic team, he was accepted to medical school and the Dean of the school would not permit a deferment. The team went on to win the gold medal in Tokyo that year while Dr. Flanigan was in anatomy class. Since then, he has pursued competitive Masters rowing, and has won 25 World Championships, 21 US Championships, and is still competing. He is very proud of his physician daughter, Kate, Medical Director of the Department of Interior, and co-author of Longevity Made Simple a Denver best seller (2007), which is a testament to his avid interest in preventive cardiology.