Peter K. Tiernan, MD, MPH (Retired)

Hart Causation and Claims LLC is an organization I can wholeheartedly support. Dr. John Hart isn’t just an amazing professional—he’s an absolute class act and a superb Senior Flight Surgeon. Having served together in the Air Force over 20 years ago, I can say he still flies high, both in his role and in his humor. His service to the community is as sharp as his wit. If you need top-notch support with a side of laughter, Dr. Hart is your guy!