Sleep Surgery

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Your Care Team

Robson Capasso, MD, FAASM

Robson Capasso is currently the Director of Sleep Surgery and Assistant Professor of Otolaryngology and Head and Neck Surgery at Stanford University School of Medicine.

His quite extensive and unique training includes medical school and otolaryngology residency in Brazil, and further residencies and fellowships in head and neck and microvascular surgery, neurosciences and sleep medicine.

Dr. Capasso has published and reviewed book chapters, articles and original papers in peer-reviewed journals, and has been an investigator on diagnostic evaluation, and surgical management of obstructive sleep apnea patients. The global recognition of his work is often associated with one of his favorite tasks: lecturing and trading knowledge around the world.

His contact with diverse healthcare systems in several countries combined with his expertise in education led to involvement with Stanford University students interested in the development of new biomedical technologies to target the complex task of improving sleep apnea evaluation and treatment.


Stanley Yung Liu, MD, DDS

Dr. Liu is as an Assistant Professor of Otolaryngology in the Division of Sleep Surgery. He serves as co-director of the Stanford Sleep Surgery Fellowship Program. He is a committee member of sleep medicine in the American Academy of Otolaryngology. He is a member of an expert task force to update practice parameters for sleep apnea surgery in adults by the American Association of Sleep Medicine.

He received his medical and dental degrees from the University of California-San Francisco (UCSF). He was a former Howard Hughes Medical Institute (HHMI) Research Scholar (Cloister Program). After maxillofacial surgery residency at UCSF, Dr. Liu completed his sleep surgery fellowship with the Department of Otolaryngology at Stanford.

Dr. Liu practices the full scope of sleep apnea surgery including nasal, palatal, hypoglossal nerve stimulation, genioglossus advancement, distraction osteogenesis maxillary expansion (DOME), and maxillomandibular advancement (MMA). He is also routinely referred patients for orthognathic surgery and facial trauma. In that capacity, he also serves as a preceptor for the Stanford Oculoplastic Surgery Fellowship. He lectures extensively in the U.S. and internationally on sleep apnea surgery.

Dr. Liu's active areas of research include dynamic airway examination of OSA, virtual surgical planning for precision facial skeletal surgery, and neuromodulation of the head and neck. He is a Stanford Biodesign Faculty Fellow (2017-18). He has published over 50 scientific articles and medical texts, with original scientific work on MMA, maxillary expansion, and hypoglossal nerve stimulation.


Robert W. Riley, MD, MS, DDS

Robert W. Riley is a Clinical Professor in the Department of Otolaryngology-Head and Neck Surgery at Stanford University School of Medicine.

Dr. Riley's education and training includes a dental degree and graduate degree (MS Pharmacology) from the University of California San Francisco. A medical degree was obtained from the University of Alabama. An Oral and Maxillofacial Surgery Residency was completed at the University of California Los Angeles and Harbor General Hospital. An Otolaryngology-Head and Neck Surgery Residency was completed at Stanford University.

Dr Riley and his partner, Dr Nelson Powell, were the innovators of many of the surgical procedures used to treat Obstructive Sleep Apnea. They were the first to describe and publish the following: Cephalometric Analysis: A new method to image the airway, Mandibular Osteotomy with Genioglossus Advancement, Hyoid Myotomy and Suspension, Maxillary and Mandibular Osteotomy, The Uvulopalatal Flap: an alternative to Uvulopalatalpharyngoplasty, Cranial Bone Graft: a new method of harvest in Maxillofacial Surgery, and Radiofrequency Reduction: a new method to treat breathing and sleep apnea.

Dr Riley has published almost 100 scientific articles and medical texts. He continues to treat patients with Obstructive Sleep Apnea utilizing his 30 years of experience.