About Our Surgeon


David C. Treen, Jr. FACS, MD
David C. Treen, Jr. FACS, MD
Dr. Treen has been a leader in the field of General Surgery for many years. His skills in advanced laparoscopic surgery are widely recognized as among the best in the country. At West Jefferson Medical Center, he was the first surgeon to use laparoscopic technique to perform cholecystectomy, appendectomy, splenectomy, gastric bypass, colon resection, adrenalectomy, inguinal and incisional hernia, and introduced laparoscopic repair of hiatal hernia and GERD.

His training in bariatric surgery techniques was under Dr. Alan Whitgrove and Dr. Paul O'Brien, two of the most respected leaders in the field of bariatric surgery worldwide. He was the first surgeon to perform laparoscopic gastric bypass and LAP-BAND® surgery at West Jefferson Medical Center.

  • Certified American Board of Surgery
  • Graduate of Tulane School of Medicine, 1984
  • Residency at Alton Ochsner Hospital and Clinic
  • Fellow of the American College of Surgeons
  • American Society of Bariatric Surgeons


About Our Staff


Michelle Treen, RN
Michelle Treen, RN, Bariatric Clinical Nurse Coordinator
Michelle earned her RN degree at Louisiana State University School of Nursing and attended William Carey School of Nursing where she trained as an operating room technician. She has been an integral part of Surgical Clinic of Louisiana since it was founded in 2000. As the Nurse Coordinator for our Bariatric Surgery program, Michelle handles all aspects of bariatric patient care, and assists our surgeons in the SCLA Marrero office. As a teenager, Michelle attended Weight-Watchers to gain control of her own weight problem. That experience has enabled her to approach bariatric patient care with a personal perspective, which has been an inspiring benefit to all of our patients.





Yanetsy Capote
Yanetsy Capote, Office Manager
Yanetsy joined the SCLA team in 2011. She oversees the daily management of the clinic and handles all the billing and collections as well. Yanetsy is also a very successful bariatric surgery patient herself. She will often happily answer patient questions based on her own experience with the Sleeve Gastrectomy procedure.





Evan Hoover
Evan Hoover, Bariatric Services Assistant
Evan joined the staff in 2015, and has been coordinating bariatric patient insurance verification, arranging seminars, scheduling of patient education classes, and communications with patients. She handles all of the details for patients from start to finish, and is genuinely interested in making everyone's experience as smooth as possible.





Crystal Allen
Crystal Allen, Front Desk and Patient Services
Crystal joined the team in 2016, and is the first person you see when coming to our office. She will gather detailed information and coordinate all of your appointments, and she always makes everyone feel welcome and at ease with her beautiful smile and gentle spirit.