Dr. Treen earned his medical degree with honors from Tulane University School of Medicine before completing his internship and General Surgery residency at the Alton Ochsner Foundation Hospital and Clinic, finishing his training as Chief Resident. A Fellow of the American College of Surgeons, he also contributes to the organization through his work on the Candidate Interview Committee.

He serves as an Associate Clinical Professor of Surgery at Tulane School of Medicine and has held leadership roles as Chief of Surgery and Chief of Staff at West Jefferson Medical Center. With more than 20 years in practice, Dr. Treen leads the Hernia Institute of Louisiana as Medical Director, where he is known for his steady commitment to patient care and his dedication to advancing surgical techniques.

A member of the American Hernia Society since 1999, he was elected to its Board of Governors in 2009. Surgeons from around the world visit to observe his methods, reflecting his long-standing focus on innovation, education, and results that make a meaningful difference for the individuals he treats.