Meet the Team

Meet the team

At the LCMC Health Center for Bariatric Surgery , we know that successful weight loss surgery is about more than just the procedure—it’s about the people who guide you through every step of the journey. Our team of compassionate surgeons, nutritionists, and support staff is dedicated to helping you achieve lasting health and wellness.

With years of specialized experience in bariatric surgery, we bring a deep commitment to patient care, personalized support, and expert treatment. Get to know the skilled professionals who will be with you from your first consultation to your lifelong wellness journey.

David C. Treen, Jr, MD, FASMBS

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, sleeve gastrectomy, 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
• American Society of Metabolic and Bariatric Surgeons

Peter W. Lundberg, MD

Having completed fellowship in advanced minimally invasive techniques and bariatric surgery, Dr. Peter Lundberg is one of the most prolific laparoscopic surgeons in Southern Louisiana. He was the first surgeon at our institution to utilize robotics in performing sleeve gastrectomy, gastric bypass, duodenal switch, and several other complex gastrointestinal procedures. He frequently takes on complex revisional bariatric surgeries, offering patients renewed chances at weight loss and comfort when their initial outcomes are not optimal. Dr Lundberg is also among the most experienced robotic surgeons in the area for hernia surgery and anti-reflux surgery.

“Laparoscopy, in concert with robotics, is the present and future of surgery. Surgeries are safer, outcomes better, pain less and cosmetic results superior with the technology at our disposal.”

Dr Lundberg is certified by the American Board of Surgery and has been extensively published in general and bariatric surgery literature. His training affords a personalized approach for every patient to ensure a safe, satisfactory outcome with minimal pain and a rapid recovery.

He also maintains leadership roles in both the state and national chapters of the American Society for Metabolic and Bariatric Surgery and is a tireless advocate for educating patients, providers, employers, and legislators on the benefits of weight loss surgery. His greatest passion, however, is establishing meaningful relationships with patients - to listen, understand, and honestly find the best way forward as a team.

• Graduate of Loyola University Chicago - Stritch School of Medicine, 2011
• Completed general surgical residency at Tulane University School of Medicine, 2017
• Completed advanced minimally invasive and bariatric surgery fellowship at St Luke’s University, 2018
• Fellow of the American College of Surgeons
• Fellow of the American Society for Metabolic and Bariatric Surgery
• Director of Metabolic and Bariatric Surgery, West Jefferson Medical Center

Vaughn E. Nossaman, MD

Dr. Vaughn Nossaman was raised in New Orleans, and attended Tulane University for undergraduate, graduate, and medical school. He completed his surgery residency at Nassau University Medical Center on Long Island, New York, after which he completed a bariatric and minimally invasive surgery fellowship at Kaiser Permanente South Sacramento Medical Center in California. During his fellowship at Kaiser Permanente, Dr. Nossaman performed over 400 surgeries including sleeve gastrectomy, gastric bypass, revisional bariatric procedures, hiatal hernia repair, and robotic hernia repair. He has broadened medical knowledge with numerous publications in general and bariatric surgery literature.

Dr. Nossaman uses minimally invasive techniques to insure a safe, satisfactory outcome with minimal pain and a rapid recovery and he is dedicated to his patients in their pursuit of a happier, healthier life that weight loss after bariatric surgery affords. Dr. Nossaman is a member of the Society of American Gastrointestinal and Endoscopic Surgeons as well as the American Society for Metabolic and Bariatric Surgery.