At NSIBR, our mission is to deliver evidence-based, personalized care that restores healthy breathing and improves overall wellness. We believe every patient deserves treatment designed around their anatomy, lifestyle, and goals, not a one-size-fits-all approach.
Our philosophy is simple: Combine precision medicine with personalized care to achieve the best outcomes with the least disruption to daily life. That dedication to individualised treatment has made NSIBR one of South Florida’s most trusted ENT practices, where innovation and compassion go hand in hand.
Since 1987, the Nose and Sinus Institute of Boca Raton has been setting benchmarks in ENT and facial surgery. Our physicians were among the first in the United States to perform stereotactically guided sinus surgery and balloon sinuplasty, now considered the standard of care worldwide.
Today, our team continues to pioneer new frontiers in nasal, sinus, and airway surgery while training other specialists across the nation. With over three decades of experience, NSIBR remains a center of excellence in advanced, minimally invasive procedures.
Dr. Nathan Nachlas, MD
Educated at the prestigious Yale University, Dr. Nachlas is the president of ENT and Allergy Associates of Florida. He is also the Medical Director at our facility. He specializes in minimally invasive nose and sinus surgeries.
Dr. Nachlas' Bio
Dr. Melyssa Hancock, MD
Dr. Hancock is very familiar with head and neck surgeries after completing a five-year surgical residency at Georgetown University Hospital. She is double board-certified and has also trained under leading facial plastic surgeons in the industry. Dr. Hancock’s specialties are rhinoplasty, otoplasty, and chin implants.
Dr. Hancock's Bio
Dr. Jaclyn Klimczak, MD
Dr. Klimczak is a fellowship-trained facial plastic surgeon practicing in Boca Raton who specializes in reversing facial aging procedures as well as reconstructive surgery. She is well trained in facelifts, necklifts and brow lifts, as well as skin cancer reconstruction.
Dr. Klimczak's Bio
Dr. Diana del Valle, MD
Coming from private practice in Boca Raton, Dr. del Valle is our expert in medical treatments concerning ear, nose, and throat conditions. She works with both pediatric and adult patients at our facility. Dr. del Valle is also fluent in Spanish and proficient in Portuguese!
Dr. Del Valle's Bio
At NSIBR, expertise and empathy work hand in hand. Our patients trust us because we deliver real results, safely, thoughtfully, and consistently.
Here’s what makes us unique:
Experience renewed confidence with results that look beautifully natural. Our facial plastic and ENT specialists combine artistry with advanced medical skill to refine nasal aesthetics while preserving or improving function. Each procedure is designed to enhance harmony and help patients look and feel their best.
Our Aesthetic Services Include:
Healthy breathing supports every aspect of well-being. Our specialists use a total-nose approach to treat nasal obstruction, sinus disorders, and airway blockages, combining advanced diagnostics with minimally invasive procedures for lasting relief.
Functional & Reconstructive Procedures:
5 STAR RATINGS
I drove three hours to meet Dr Hancock and have her operate on my nose. Her expert care and staff helped my through a difficult experience I’m having. The entire staff and office staff are nice caring and really professional. I’m so blessed to be in their care.
Robert Edlow 
Very knowledgeable doctors that helped me with all my sinus and nasal issues. Dr. Nachlas and Hancock are really the best at what they do and happy I found this place. Also Sandy was so nice and walked through everything in detail each step of the way. Will certainly recommend to others!
Koral Duygulu
My experience was great from start to finish. The entire staff was very professional and helpful. Dr. Nachlas is best at what he does. I can actually breath better and feel more energetic through out the day. My sleeping has improved as well.
Dee
Take charge of your life today! Call us or submit an online form, and you will be speaking with one of our talented surgeons in no time.
(561) 939-0900
Dr. Melyssa Hancock is a board-certified otolaryngologist and fellowship-trained rhinologist at Northside Institute of Balloons and Rhinology. She specializes in advanced medical and surgical treatments for sinus, nasal, and skull base disorders.
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