Medical and Clinical Advisory Board


Clete A. Kushida, MD; PhD(Cochair)

ivision Chief and Medical Director of Sleep Medicine | Neurologist, Professor, and Associate Chair, Department of Psychiatry and Behavioral Sciences, Stanford University

Clete A. Kushida, MD, PhD, is a neurologist, division chief, and medical director of Stanford Sleep Medicine; associate chair and professor of psychiatry and behavioral sciences at the Stanford University Medical Center; and director of the Stanford Center for Human Sleep Research. He is the inaugural president of the World Sleep Society, past president of the World Sleep Federation, past president of the American Academy of Sleep Medicine, past president of the Associated Professional Sleep Societies Board of Directors, and founding president of the California Sleep Society. 

Dr. Kushida has conducted basic and clinical sleep research since 1977 and served as principal investigator for numerous large, federally and industry-sponsored studies. He has authored or edited over 300 publications and nine books, including serving as editor-in-chief of the largest publication on the field of sleep to date—the Encyclopedia of Sleep (4 volumes, 429 chapters, 748 authors)—and editor-in-chief of Sleep Science and Practice. He is a past recipient of the highest professional awards in the field of sleep medicine: the American Academy of Sleep Medicine’s Nathaniel Kleitman Distinguished Service Award and the World Sleep Society’s Distinguished Service Award.


Cecilia Wu, MD (Cochair)

Anatomic, Cardiovascular, and Forensic Pathology | Assistant Clinical Professor, University of Alberta

Dr. Wu is a board-certified anatomic, forensic, and cardiovascular pathologist. She received her medical doctorate from the University of Washington, completed a residency in anatomic and clinical pathology at the University of New Mexico, completed a subspecialty fellowship in forensic pathology at the Office of the Medical Investigator in Albuquerque, New Mexico, and completed another subspecialty fellowship in cardiovascular pathology in the Mayo Clinic Rochester, Minnesota.

Her research interests include medical education, sudden cardiac death, and genetic testing for inherited diseases.


Fred Lin, MD

Division Chief of Sleep Surgery | Assistant Professor, Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine at Mount Sinai

Dr. Lin, a graduate of the University of Louisville School of Medicine and an elected member of the prestigious Alpha Omega Alpha medical honor society, completed his residency in otolaryngology-head and neck surgery at Mount Sinai Medical Center, where he served as chief resident.

Following residency, he completed a fellowship in sleep surgery at the Stanford University Medical Center in conjunction with Dr. Robert Riley and Dr. Nelson Powell of the California Sleep Institute.

A diplomate of the American Board of Otolaryngology, Dr. Lin is an expert in all aspects related to the surgical treatment of sleep apnea, snoring, and nasal obstruction, and has been named the division chief of sleep surgery of the Mount Sinai Health System and director of the Mount Sinai Hospital Sleep Surgery Program.


Samuel DeMaria, Jr., MD

Professor of Anesthesiology, Perioperative and Pain Medicine, and Otolaryngology | Vice Chairman for Research, Icahn School of Medicine at Mount Sinai

Samuel DeMaria Jr., MD, is the vice-chair of research in the Department of Anesthesiology, Perioperative and Pain Medicine. He holds the dual appointment of professor in his home department as well as the Department of Otolaryngology. Dr. DeMaria Jr. did his residency at Mount Sinai, where he was a chief resident. Since then, he has served in numerous leadership roles for the department, including residency program director, simulation center codirector, and division chief for liver transplantation.

His research interests center around clinical trials, patient-centered perioperative outcomes, simulation-based education, and performance studies. He has authored nearly 100 publications, edited several textbooks, and received research and teaching awards for his work in the department.


Manisha Witmans, MD

Sleep Medicine Specialist and Pediatric Pulmonology | Associate Clinical Professor, University of Alberta

Dr. Witmans is a graduate of the University of Saskatchewan and completed her medical degree with BSc Med with honors. Following residency and fellowship at the Alberta Children’s Hospital and the University of Calgary, she completed additional respirology and sleep medicine training at Children’s Hospital Los Angeles and Southern California, Keck School of Medicine. 

She is board certified in sleep medicine, pediatric pulmonology, and pediatrics.  She has an ABIM certification for sleep medicine.


Seth Heckman, MD

Obstetrics and Gynecology | Assistant Clinical Professor, University of Alberta Department of Family Medicine

Dr. Heckman is a board certified Obstetrician/Gynecologist. His diverse career has included clinical, administrative, and public health roles in government at both the provincial and federal level. He currently resides in Edmonton, Alberta where he maintains a private practice, does First Nations outreach, and is an Assistant Clinical Professor in the University of Alberta Department of Family Medicine.


Yury Khelemsky, MD

Program Director, Pain Medicine Fellowship | Associate Professor, Department of Anesthesiology, Perioperative and Pain Medicine | Department of Neurology, Icahn School of Medicine at Mount Sinai

Dr. Khelemsky is the program director of the Icahn School of Medicine at Mount Sinai Pain Medicine Fellowship and serves on the board of directors of the New York Society of Interventional Pain Physicians. He is also the chair of the Pain Medicine Committee of the New York State Society of Anesthesiologists.

His clinical practice focuses on the interventional treatment of headaches, neck pain, and low back pain. His recently published book, Academic Pain Medicine, is the standard text for Mount Sinai’s ACGME Accredited Pain Fellowship Program.


Edward J. Zuckerberg, DDS, FAGD

CEO/Founder of Painless Social Media LLC | Venture Partner at Revere Partners | Chief Dental Officer for Keystone Bio

Edward J. Zuckerberg, DDS, FAGD, is a 1978 graduate of the NYU College of Dentistry. He owned his own practices in Brooklyn and Dobbs Ferry, NY, from 1979 to 2013 and has always been an early adopter of technology, introducing his first PC in the office in 1986 and completely networking his home-based office with broadband access in 1996. Dr. Zuckerberg’s early adoption of technologies—including digital radiography, CAD/CAM, and the creation of a paperless office—caught the attention of industry leaders who enlisted him to lecture, write articles, and beta test new technologies. The advanced technology in the home inspired an interest in computers in his son, Mark, founder of Facebook,

With his wife of 42 years—Karen, a retired psychiatrist—he also has three daughters: Randi, former marketing director at Facebook and now CEO of Zuckerberg Media; Donna, who received her classics PhD at Princeton and is now an author and editor of the online publication Eidolon, featuring a modern way to write about the ancient world; and Arielle, who is a partner in a financial firm in San Francisco; as well as seven grandchildren.

Dr. Zuckerberg now regularly lectures nationally and internationally on technology integration, social media marketing, and online reputation management for dentists. He consults privately with dental practices and advises dental/medical technology startups, all while treating patients part time in Cupertino, CA. Dr. Zuckerberg authored the chapter on social media on the ADA’s recently released Practical Guide to Internet Marketing.

In 2021, Dr. Zuckerberg was named the chief dental officer for Keystone Bio, an early clinical-stage biopharmaceutical company dedicated to eradicating the known driver of inflammation and disease: porphyromonas gingivalis (Pg), which is present in the mouths of 50 percent of all adults. He also joined Revere Partners in early 2021, the first independent venture fund for oral health. Dr. Zuckerberg can be reached via his website: painlessdrz.com. He also maintains two Facebook pages: one with tips for his colleagues on promoting their practices using social media to attract new patients and maintain and improve relationships with existing ones, and one for his patients.


Tammarie Heit, DDS

Dentist at Avalon Dental | Speaker | Published Researcher

Dr. Tammarie Heit practices craniofacial sleep medicine and general dentistry in Edmonton, Canada. She began her healthcare career practicing as a nurse for 10 years and has now been a dentist for 25 years. In addition to general dentistry, she practices craniofacial sleep medicine integrating medical doctors and dentists. She is a regent board member of the International College of Craniomandibular Orthopedics and an integrated clinical advisor in the Vivos® Integrated Healthcare network.

Dr. Heit works with clinicians from all around the world to conduct research and develop clinical protocols for the treatment of craniofacial developmental deficiencies. This includes the treatment of sleep-disordered breathing and mild to moderate obstructive sleep apnea.


Jon Caulfield, DDS

Owner of Epic Dentistry | Instructor at The Vivos Institute | Clinical Advisory and Advocate Program Leader at Vivos Therapeutics

Dr. Jon W. Caulfield owns and operates Epic Dentistry in Littleton, Colorado, where he focuses on treating patients with airway, sleep, and TMJ disorders. He has been fortunate to work alongside world leaders in neuromuscular occlusion, sleep, and airway improvement. He has been a Vivos Integrated Practice since 2010, is an employee of the Institute for Craniofacial Sleep Medicine, and is an integrated clinical advisor for Vivos Therapeutics.


Michael Gelb, DDS, MS

Director of the Gelb Center | Cofounder of the Foundation of Airway Health and the Airway Summit | Cofounder of the American Academy of Physiological Medicine and Dentistry

Dr. Michael Gelb is a highly rated author and speaker on TMJ, sleep apnea, sleep disorders, and chronic headache treatments. After graduating from Columbia University with a DDS degree, he received his MS degree at SUNY Buffalo in neuromuscular research. Dr.Gelb went on to become a clinical professor at NYU, where he directed the TMJ and orofacial pain program. Dr Gelb provides solutions for dentists to incorporate airway and sleep into their practices.

He is also the cofounder of the Foundation of Airway Health and its Airway Summit. Dr.Gelb is the coauthor of GASP: Airway Health – The Hidden Path To Wellness and Functional Dental Medicine. He maintains a private practice in NYC and White Plains. He has pioneered airway-centric medical and dental education and developed the ACG™ Airway Centric® System, designed for work, play, and sleep.