Bariatric surgery, or weight loss surgery, is a life-changing option for many people struggling with obesity, especially when traditional diet and exercise efforts haven’t been successful. In Brevard County, access to top-rated bariatric surgeons and a comprehensive weight loss program makes it easier for residents to explore this option close to home.
Understanding bariatric surgery.
Bariatric surgery refers to a group of procedures that help with weight loss by altering the digestive system. The most common types include gastric bypass, sleeve gastrectomy, and adjustable gastric banding. These procedures can lead to significant weight loss, improved health, and a better quality of life for the right candidates.
Meet our surgeons: Dr. Nathan Allison and Dr. Kenneth Tieu
Dr. Nathan Allison and Dr. Kenneth Tieu are fellowship-trained, board-certified bariatric surgeons based in Melbourne, Florida. Recognized across Central Florida for their skill and compassionate care, they are committed to helping patients achieve long-term weight loss success through minimally invasive surgical options.
Learn more about
Dr. Nathan Allison.
Learn more about
Dr. Kenneth Tieu.
Their practice is known for:
Expertise in laparoscopic and robotic-assisted procedures.
Outstanding patient outcomes and satisfaction.
A comprehensive, team-based approach to pre- and post-surgical care.
Who is a candidate for bariatric surgery?
You may be a candidate for bariatric surgery if you:
Have a body mass index (BMI) over 40.
Have a BMI over 35 with related health issues including, but not limited to, type 1 or type 2 diabetes, high blood pressure, or sleep apnea.
Have tried medically supervised weight loss programs without success.
Are prepared to commit to long-term lifestyle changes and follow-up care.
"It was an opportunity to get my life back! A chance to be a better father, husband, co-worker, and friend. NewFit has equipped me with the tools necessary to make lasting, meaningful change. I will always be grateful for the Health First NewFit team for giving me this opportunity to get my life back. Not just my confidence, but in educating me in how to live a healthy, meaningful life!”
– Jason, surgical weight loss patient, -180 pounds
“Dr. Tieu and team have been nothing short than incredible throughout my journey. The amount of support, education, and follow-ups have been crucial to my success, and I cannot recommend this team enough. While I am still fairly new in my weight-loss journey, I feel empowered to meet my goals thanks to Dr. Tieu, NewFit, and Health First!”
– Heather, surgical weight loss patient, -100 pounds
"Dr. Allison was amazing to work with. When I first met him, he asked me what my ultimate goal was and it was to be fit enough to run with my children. His response was, 'We’re going to make you the best mom version of you ever.' This was the best decision I’ve made for myself but also for my family. I’m thankful I get to be the best version of myself for my boys."
– Lacey, surgical weight loss patient, -122 pounds
Frequently asked questions.
Why choose us?
Patients throughout Brevard County—from Titusville to Palm Bay—trust Dr. Allison and Dr. Tieu for:
High surgical success rates.
Compassionate, patient-centered care.
A proven track record of helping people achieve sustainable weight loss.
Serving the Space Coast and beyond.
Dr. Allison and Dr. Tieu welcome patients from Melbourne, Cocoa Beach, Titusville, Rockledge, Palm Bay, and throughout Brevard County and surrounding Central Florida counties. Their clinics are conveniently located for residents near I-95 and the Space Coast Health Corridor, Melbourne, and Palm Bay.