Meet Our Team

With You Every Step of the Way

The Bariatrics team at Halifax Health are more than experts on bariatric procedures, they will help you create a solid foundation for your new lifestyle. They will give you the tools and resources you need to be successful after surgery and provide support when you need it most. Our team is more like family, and most of our team members have experienced bariatric surgery themselves and can tell you firsthand the struggles they faced and overcame. This is a journey that continues far beyond the day of your procedure, and our team is here to ensure you have long-term success.

Jason J. Arellano, MD, FACS, FASMBS

Dr. Arellano is a minimally invasive and bariatric surgeon at UF Health Surgical Specialists and Halifax Health | UF Health Medical Center of Deltona.

He obtained his medical degree from SUNY Downstate Medical Center in Brooklyn, NY. He later completed his surgery residency at Nassau University Medical Center in East Meadow, NY and a minimally invasive and bariatric surgery fellowship at Albany Medical Center, also in NY.

Since then, he has served as a surgeon at hospitals throughout Long Island, NY performing minimally invasive, bariatric and robotic surgery. Dr. Arellano joined UF Health Surgical Specialists at Halifax Health | Medical Center of Deltona in February 2020 with the aspiration to provide specialized surgical care to all patients in Volusia County.

Dr. Arellano has received several awards and academic achievements, including the Service Excellence Award, Resident Teacher of the Year, and first place in the Brooklyn/Long Island Chapter of the American College of Surgeons’ poster presentation. His current research studies include robotic sleeve gastrectomy using 60 mm automatic tissue compression stapler technology.

Joel L. Sebastien, MD, FACS

The director of Bariatric Surgery at East Coast Bariatrics, Dr. Sebastien is fellowship-trained and specializes in the surgical treatment of obesity. He received his medical degree from the State University of New York at Buffalo, School of Medicine and completed his advanced training internship and residency at Westchester Medical Center in Valhalla, New York.

As the Director of Bariatric Surgery, Dr. Sebastien is committed to providing a multidisciplinary program that achieves great long-term outcomes for his bariatric surgical patients.

Lars Nelson, MD

Dr. Nelson is a board-certified General Surgeon who is also fellowship-trained in bariatric surgery. After graduating Cum Laude from the University of Florida with a B.S. in Chemical Engineering, Nelson attended medical school at St. George’s University School of Medicine where he graduated with honors. He completed his residency and fellowship at Orlando Health where he focused on Bariatric and Minimally Invasive Surgery.

In addition to his extensive research and presentations on surgical weight loss, he is also a member of the American Society of Metabolic and Bariatric Surgery and the Society of American Gastroenterology and Endoscopic Surgeons. Dr. Nelson is passionate about helping his patients achieve a healthier lifestyle that results in long-term success.

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