Our Physicians

Dr. Jason Hamilton

Reconstructive Surgery

Director of Facial Plastic and Reconstructive Surgery for the Osborne Head and Neck Institute

Dr. Hamilton has advanced expertise in plastic, reconstructive, and aesthetic surgical techniques involving the nose, face, and neck, and restricts his practice to the treatment of these areas exclusively. Dr. Hamilton’s particular areas of interest include facial reconstruction after head and neck surgery and/or trauma, septal perforation repair, primary and revision nasal surgery, and rhinoplasty. He is sought after internationally for his expertise.

Jason S. Hamilton, M.D. is the Director of Facial Plastic and Reconstructive Surgery for the Osborne Head and Neck Institute based at Cedar-Sinai Medical Towers, Beverly Hills, California. Dr. Hamilton began his love of medicine at Duke University, and completed his formal training with a prestigious fellowship in facial plastics and reconstructive surgery awarded through the American Academy of Facial Plastics and Reconstructive Surgery. This one-on-one training, under internationally renowned Master Plastic Surgeons, constitutes the finest training in plastic surgery in the world. Dr. Hamilton is a double board-certified diplomate of the American Board of Facial Plastic and Reconstructive Surgery and the American Board of Otolaryngology/Head and Neck Surgery. He is a Fellow of the American Academy of Facial Plastic and Reconstructive Surgery and was inducted as a Fellow of the American College of Surgeons.

Dr. Hamilton serves on the emergency and trauma call panels for Cedars-Sinai and California Hospital Medical Centers both located in Los Angeles, California. He is a member of the craniomaxillofacial surgery and head & neck surgery teams which focus on the surgical management of patients with facial, head, and neck trauma. Dr. Hamilton’s skills where highlighted recently on a national level in the management of USC football player Stafon Johnson who suffered a life threatening injury after a 275lb weight bar crushed his neck during a training session. Dr. Hamilton’s quick actions saved the player’s life and with partner Dr. Ryan Osborne they both reconstructed his larynx allowing him to make a miraculous return to the football field in the NFL.

In addition to his extensive practice experience, Dr. Hamilton has also held numerous teaching appointments, for which he has been recognized for excellence in teaching. He serves as an Attending Surgeon and Clinical Faculty member in the Department of Surgery at Cedars Sinai Medical Center, where he teaches facial plastic and reconstructive surgery. He has lectured internationally and published over 54 peer-reviewed scientific articles and book chapters.

Dr. Hootan Zandifar

Reconstructive Surgery

Dr. Hootan Zandifar, MD FACS, is the Director of the Skin Center and a facial plastic and reconstructive surgeon at the Osborne Head and Neck Institute located in the Cedars-Sinai Medical Towers in Los Angeles, CA. A native of Los Angeles, he received his medical degree from the prestigious David Geffen School of Medicine at UCLA. He completed his residency in Otolaryngology – Head and Neck Surgery and was then accepted to one of a few highly sought after fellowships in Facial Plastic and Reconstructive Surgery. The rigorous training he received under the tutelage of world-famous plastic and reconstructive surgeons enables Dr. Zandifar to provide the best and most advanced treatments available.

Dr. Zandifar is a board-certified diplomat of the American Board of Otolaryngology – Head and Neck Surgery and is a fellow of the American Academy of Facial Plastic and Reconstructive Surgery and the American College of Surgeons. He focuses his practice solely on cosmetic and reconstructive surgery of the head and neck region.

Dr. Zandifar has published peer-reviewed articles in various scientific journals including Laryngoscope, ENT Journal, Journal of Pediatric Otolaryngology, Brachytherapy, Journal of Pediatric Otorhinolaryngology and Journal of Investigative medicine. He has presented at many national meetings including the Annual American Academy of Facial Plastic and Reconstructive Meeting, Combined Spring Otolaryngological Meeting and Triological Meeting.

Dr. Zandifar has received several awards of distinction from his patients and colleagues. These include:

  • Super Doctors® 2013, Southern California Rising Star℠ List
  • Top Plastic Surgeon in Beverly Hills, CA by International Association of Healthcare Professionals
  • Included in 2013 The Leading Physicians of The World publication
  • Plastic Surgery Practice Best of 2012 Plastic and Cosmetic Surgeons
  • Walter P. Work, M.D. Award for outstanding performance in Otolaryngology/Head and Neck Surgery

Dr. John Joseph Rehm

Reconstructive Surgery

Dr. John Joseph Rehm, MD, FACS is an otolaryngologist at the Osborne Head and Neck Institute in the Cedars Sinai Medical Towers, in Los Angeles, California. Dr. Rehm is a member of the Division of the Facial Plastic & Reconstructive Surgery and has extensive experience in the management of craniofacial trauma and sports-related facial injury. His practice also encompasses the full range of adult otolaryngology, including common ear, nose and throat ailments (hearing loss, dizziness/vertigo, sinus disease, allergy, tumors of the head and neck, and facial plastic & reconstructive surgery).

Dr. Rehm completed his undergraduate education, medical school, and residency training in Otolaryngology/Head and Neck Surgery (ENT) at the University of Southern California. Based on his excellent performance, he was offered and accepted a role as Assistant Clinical Professor of Otolaryngology at the Keck School of Medicine of USC. His expertise has also been sought by numerous professional organizations, including the Professional Team Physician Association, The American Academy of Cosmetic Surgery, and the American College of Surgeons.

Dr. Rehm has a special interest in the management of sports-related facial injuries and has over 30 years of experience treating amateur and professional athletes. His outstanding reputation has allowed him to develop professional relationships as the Facial Plastic Surgery Consultant for the LA Dodgers, LA Kings, LA Lakers, and the LA Sparks. Dr. Rehm’s desire to care for athletes and sports-related facial injuries springs from his personal experiences as an athlete. A skilled runner and golfer, Dr. Rehm also is a triathlete, skier, and practitioner of martial arts, including Hapkido.

Dr. Rehm’s vast experience has made him a valued member of the otolaryngology practice at Osborne Head and Neck Institute. He utilizes his expansive knowledge base as well as his empathetic nature to provide superb care to his patients.

Dr. Reena Gupta

Head & Neck Surgery

Dr. Reena Gupta, MD FACS, is the Director of the Voice and Swallowing Center at Osborne Head and Neck Institute (OHNI) based out of the Cedars-Sinai Medical Towers in Los Angeles, CA. Dr. Gupta has devoted her practice to the care of patients with voice and swallowing problems. She is board certified in otolaryngology and fellowship trained in laryngology, with a special interest in the care of the professional voice.

Dr. Gupta’s desire to care for patients with voice problems stemmed from her passion for the vocal arts. She began singing in elementary school and showed great promise. In high school she continued building her foundation through private vocal training. Throughout college she sang in the Pennsylvania State University Choir and select ensembles while simultaneously developing her love for the art of medicine. She attended Jefferson Medical College in Philadelphia, PA, where she did research and published articles in several journals while working with world-renowned voice specialist, Dr. Robert Thayer Sataloff.

She went onto complete a 5-year residency program at New York University School of Medicine in head and neck surgery while concurrently conducting research in the field of laryngology. Upon graduation, from NYU, Dr. Gupta was selected to complete the prestigious fellowship in Laryngology and Care of the Professional Voice under the guidance of Dr. Robert Sataloff at the American Institute for Voice and Ear Research. This fellowship has given her extensive experience in the management of a wide variety of complex voice disorders.

Dr. Gupta is a leader in the field of voice. She has written multiple publications, which have appeared in Current Opinion in Otolaryngology and Head & Neck Surgery; Otolaryngology – Head & Neck Surgery; Laryngoscope; and Ear, Nose, and Throat Journal. She has authored chapters in multiple voice textbooks, including Professional Voice: the Science and Art of Clinical Care; Textbook of Laryngology; and Operative Techniques in Laryngology. She has given presentations at national meetings for the Academy of Otolaryngology-Head and Neck Surgery and the Combined Otolaryngology Section Meeting. Dr. Gupta has developed a program for voice students at Pepperdine University. This program will aid both the growing and established performer learn more about the scientific basis of their voice, to help them excel in their craft. She has since been asked to include other prominent musical conservatories in her education efforts.

Dr. Gupta developed these programs and academic pursuits because of her passion for the voice and education. Her musical beginnings have given her an appreciation for music that few medical professionals have. This background makes Dr. Gupta uniquely poised to treat performing artists from the perspective of both a physician and a musician. Her desire to help voice users, even when the artist is unable to afford care, resulted in a relationship with the charitable arm of the Grammys, MusiCares. Dr. Gupta is the only voice specialist/laryngologist on the preferred provider network of this organization, enabling her to provide care to those who may need it most.

Dr. Gupta is a board-certified diplomat of the American Academy of Otolaryngology- Head and Neck Surgery, and a Fellow of the American College of Surgeons. She is partnered with many music schools, providing education and service to professional voice users.

Dr. Ryan F. Osborne

Head & Neck Surgery

Ryan F. Osborne, MD FACS, is the Director of Head and Neck Surgery at the Osborne Head and Neck Institute (OHNI) and is an internationally renowned expert in head and neck oncology. Dr. Osborne has developed a special interest in the treatment of parotid gland tumors and focuses on the use of minimally invasive techniques in the care of patients needing parotid surgery. He has innovated many groundbreaking surgical procedures, including a treatment for accessory parotid gland tumors, which requires no skin incisions and leaves no facial scars.

Dr. Osborne completed a fellowship in advanced head and neck oncology under the mentorship of world-renowned expert, Thomas Calcaterra, MD, at UCLA Medical Center. After completing his fellowship, Dr. Osborne, became an Assistant Professor of Head and Neck Surgery at UCLA, and was awarded the Clinical Instructor of the Year Award for outstanding training of surgical residents. While at UCLA, Dr. Osborne collaborated with Dr. Calcaterra to provide their patients with unsurpassed surgical care.

In 2003, Dr. Osborne left UCLA to become the founding Director of the Head and Neck Cancer Center at Cedars-Sinai Medical Center. In 2007, he resigned the position, dedicating all of his time to advancing the mission of OHNI and the Osborne Head and Neck Foundation, where he serves as President. The overall mission of the Osborne Head and Neck Foundation and OHNI is to create of a center of excellence where patients’ comprehensive needs can be delivered; to collaborate with respected surgeons to advance surgical techniques offered to patients in the United States; and to pursue unrestricted clinical and biomedical research projects to advance the diagnosis and surgical management of patients. Dr. Osborne has traveled throughout the United States, Asia, and Europe to observe and exchange ideas with other surgeons who have similar goals.

Dr. Osborne is a board-certified diplomat of the American Academy of Otolaryngology- Head and Neck Surgery, a Fellow of the American College of Surgeons, a member of the Society of University Otolaryngologists/Head and Neck Surgeons, and a member of the Triological Society.

Dr. Belinda Mantle

Pediatric Head & Neck Surgery

Dr. Belinda Mantle, MD, is a pediatric otolaryngologist at the Osborne Head and Neck Institute in the Cedars Sinai Medical Towers, in Los Angeles, California. Dr. Mantle’s practice is focused on the diagnosis and management of pediatric patients with common ears, nose and throat disorders. This includes ear infections, hearing loss, tonsillitis, sleep apnea, speech and language disorders, allergy, sinusitis, and the management of pediatric head and neck cysts and tumors.

Dr. Mantle completed her residency training in Otolaryngology/Head and Neck Surgery (ENT) at the University of Alabama at Birmingham. She then pursued sub-specialty training in pediatric otolaryngology, applying for a competitive fellowship in pediatric head and neck surgery. She was accepted to a prestigious, two-year fellowship in pediatric otolaryngology at the Children’s Hospital of Pittsburgh of University of Pittsburgh Medical Center (UPMC). Although other fellowships she considered were one year, she committed to the extended two-year training program at UPMC to ensure she received the most comprehensive instruction available.

Dr. Mantle is fellowship-trained in pediatric otolaryngology and is a board-certified diplomate of the American Academy of Otolaryngology/Head & Neck Surgery. She is a member of several professional organizations, including the American Academy of Pediatrics and the Society for Ear, Nose and Throat Advances in Children (SENTAC). She has published in many peer-reviewed journals and authored a book chapter for the 5th edition of Pediatric Otolaryngology.

Dr. Mantle’s love for children began early in life. As a young adult, she aspired to become a teacher so she could dedicate her life to children. However, she always felt the pull towards medicine and science. After completing medical school, the decision to become a pediatric otolaryngologist was natural. The field of pediatric ENT allowed her to combine her love of medicine with her desire to care for children in a specialized and personalized way.

As the mother of two young children, Dr. Mantle can truly identify with parental concerns for their child’s well being. Her practice philosophy is simple: she cares for each young patient the way she would care for her own boys. Dr. Mantle believes in maintaining strong ties and open lines of communication between herself, parents, pediatrician and other specialists, so that care is seamless and well organized. Her love for children, excellent training, and maternal approach to patient care results in unparalleled service for your children.

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