About 2019-03-13T22:18:29+00:00

Carl A. Weiss III, M.D., Ph.D., FACS

Dr. Weiss specializes in general surgical procedures with extensive experience in bariatric surgery and advanced training in minimally invasive surgery.  He is board certified in general surgery and is a Fellow of the American College of Surgeons. Dr. Weiss is triple-fellowship trained in surgical endoscopy, surgical infectious disease, and minimally invasive surgery.  He trained under Dr. Adrian Park—a nationally renowned innovator and expert in minimally invasive surgery.

A graduate of Tulane University School of Medicine in New Orleans, Louisiana, Dr. Weiss went on to complete his residency in general surgery at the University of Minnesota, while simultaneously earning his Ph.D. in experimental surgery.  Prior to medicine, Dr. Weiss graduated from the College of the Holy Cross (Worcester, MA) with a B.A. in English.

A former assistant professor of surgery at Upstate Medical University, Dr. Weiss is currently on surgical staff and serves as director of Fingerlakes Bariatrics at Auburn Community Hospital and has privileges at Upstate University Hospital.  He previously served as head of the surgical department and on the Board of Trustees at Auburn Community Hospital.

Dr. Weiss believes in patient centered care with a multidisciplinary approach.  Having performed thousands of bariatric and general surgeries, he appreciates the life-changing effect surgical procedures can have on patients themselves and their families. Communication is always a priority in his patient care.  Dr. Weiss believes that if the patient and his/her family have a good understanding of the surgical plan and are comfortable with it, the likelihood for a good outcome is very high.

Born and raised in Garden City, New York, Dr. Weiss has always had a passion for fitness.  A self-proclaimed gym enthusiast, he enjoys all sports (especially basketball) and staying in shape.  When not consulting with patients or in the operating room, you can find him playing his acoustic guitar.   Dr. Weiss is the proud father of three grown children and enjoys all that living in Central New York has to offer.


“Dr. Weiss, I just stepped on my scale and am down another lb. I cannot begin to tell you the exhilaration this whole weight loss has brought. Not only do I feel better and look better physically, emotionally I’m the happiest I’ve been in a very, very long time, which makes me a better person all around. I am once again living my life the way I’m meant to. So, Dr. Weiss I want to once again thank you from the bottom of my heart and soul for giving me the chance to have this surgery if it weren’t for that day I happened to see you while I was in the waiting room, I don’t think I would be where I am today. I don’t think you will ever know the difference you have made not only in my life but all the others who have had this surgery. BETTER THAN THERAPY! One down side to this though, and that is I have so much more energy, I can last hours shopping!! Uh-oh! Well, thanks again and to your staff also.”

“Very caring and listens to your concerns he took awesome care of me during a few surgeries that he performed on me would recommend and have recommended to others!”

“I very recently had a procedure done by Dr. Weiss and he did an absolutely incredible job. I hadn’t been a patient of his and met him just prior to the procedure. I knew right away that I was in the very best hands. He was kind, thoughtful, humble, and extremely knowledgeable and thorough. After the procedure, his follow up was clear and timely. I was so thankful to have had him and fortunate to have him for a healthcare provider now. He is about people and getting them well!”