William R. Ryan

William R. Ryan is an Associate Professor at the University of California San Francisco (UCSF) School of Medicine, specializing in Head and Neck Oncologic Surgery within the Department of Otolaryngology-Head and Neck Surgery.

• Education: MD from Stanford University School of Medicine (2005), Residency in Otolaryngology-Head and Neck Surgery at Stanford (2010), Fellowship at UCSF (2011)

His research focuses on improving functional and quality of life outcomes for patients with head and neck cancers, particularly HPV-associated oropharyngeal carcinoma, oral cavity cancer, and salivary tumors. He pioneered sialendoscopy-assisted salivary duct surgery and surgeon-performed ultrasound applications.

Dr. Ryan's clinical trials include testing ruxolitinib for head and neck squamous cell carcinoma. His peer-reviewed work spans over 95 articles and 4 book chapters, with editorial leadership on salivary diseases. He co-directs annual courses on otolaryngology updates and sialendoscopy techniques.

• Awards: Phi Beta Kappa (1997), Kaiser Teaching Award Finalist (2022), Multiple UCSF Pinnacle Awards
• Leadership: Co-Director of Head and Neck Surgical Oncology Fellowship, Director of Prendergast Clinical Research Fellowship