Dr.Dunn was very professional, he explained my situation with my veins, valves and blood clot. He easily addressed what needed to be done. Before I knew it I was having the surgery, it went well as he was efficient and skilled. Post surgery I went home and followed his directions, I didn't have to take any pain killers. That was very impressive! He is efficient and doesn't waste time. Big thank you to Dr.Dunn, his receptionist and clinical staff as they were all fantastic. 5 stars