Our Team

Dr. Omar Bellorin Marin received his medical degree and completed his first general surgery residency at the Central University of Venezuela and University Hospital of Caracas. He completed a research fellowship at the Cleveland Clinic Bariatric Institute in Florida and a second residency in general surgery at New York-Presbyterian Queens. Dr. Omar Bellorin Marin completed several fellowships in minimally invasive, advanced gastrointestinal, metabolic and bariatric surgeries at New York-Presbyterian Hospital/Weill Cornell Medical College with rotations at Memorial Sloan Kettering Cancer Center in New York City.

Dr. Melanie Howell earned her medical degree at Tulane School of Medicine in New Orleans. She completed her general surgery residency at Montefiore Medical Center in the Bronx, New York, and then a fellowship in bariatric and minimally invasive surgery at Johns Hopkins Medicine. Dr. Howell also has a master's degree in pharmacology from Tulane. She is a Fellow of the American College of Surgeons (FACS) as well as the American Society for Metabolic and Bariatric Surgery (ASMBS).

Dr. Mikhail Botvinov completed his medical training at I.M. Sechenov First Moscow Institute of Medicine in Moscow, Russia, and the New York Institute of Technology College of Osteopathic Medicine in Old Westbury, New York. He completed surgical training at Flushing Hospital and minimally invasive laparoscopic and bariatric training at Staten Island University Hospital, both in New York City.

Dr. Stefanie Vaimakis received her medical degree from New York University School of Medicine and completed her residency in General Surgery at Saint Vincent's Medical Center in New York City. She completed her fellowship in Advanced Laparoscopic and Bariatric Surgery at Montefiore Medical Center in Bronx, New York.