Meet Our Team

Jolie Chang, MD
Associate Professor

Dr. Chang’s research currently focuses on hearing loss and its effect on brain plasticity using novel neuroimaging measures. She has studied auditory function in Parkinson’s disease, hearing loss in bone diseases, and techniques and outcomes for sialendoscopy and sialolithiasis therapy. Dr. Chang specializes in minimally invasive approaches for salivary gland surgery including sialendoscopy. She also has clinical focuses and expertise in hearing and middle ear disorders, sleep apnea surgery, and ultrasonography for head and neck disorders, lecturing nationally on these topics.



Kristina Rosbe, MD

Dr. Rosbe’s clinical practice includes all aspects of pediatric otolaryngologic care. Her recent research has focused on the association between sleep-disordered breathing and vascular anomalies as well as pediatric salivary gland disease.




William Ryan, MD
Associate Professor

Clinically, Dr. Ryan is skilled in the care and management of patients with benign and malignant tumors of the head and neck and obstructive salivary disease with the appropriate application of robotic, endoscopic, minimally invasive, and traditional surgical techniques. He helps direct the Robotic Head and Neck Surgery program (for TORS: TransOral Robotic Surgery), the Thyroid and Parathyroid Surgery Center, and the Salivary Gland Surgery Center at UCSF. He has specific interests and expertise in thyroid and parathyroid surgery, sialendoscopy/salivary duct surgery, salivary tumor surgery, upper aerodigestive tract surgery (of the oral cavity, oropharynx, hypopharynx, larynx, upper esophagus, and trachea), skin cancer surgery, and regional facial, head and neck reconstruction.