Douglas A. Chen MD, FACS Address: Pittsburgh Ear Associates Suite 402, 420 E. North Ave, Allegheny General Hospital Pittsburgh, PA 15212, USA Telephone 412 321 2480 Email: douglasachen@yahoo.com Medical School: The Ohio State University, College of Medicine, 1977-1980 Residency: University of Pittsburgh, Otolaryngology, 1981-1985 Fellowship: Otologic Medical Group (aka House Ear Clinic), 1986-1987 Pittsburgh Ear Associates, 1987-present Memberships: American Neurotology Society, American Otologic Society, Triological Society, American Academy of Otolaryngology Trilogical Thesis: Acoustic Neuroma in a Private Neurotology Practice: Trends in Demographics and Practice Patterns. Laryngoscope 117:November 2007, p 2003-2012. Special interests: Implantable active middle ear implants.

Investigator surgeon for the Envoy Esteem, Vibrant Sound Bridge, and Vibrant Sound Bridge to the Round Window for conductive and mixed hearing loss. Member of the Implantable Hearing Device Committee AAO-HNS 2011-present Positions: Chairman Pittsburgh Ear Associates, Director of Division of Neurotology Department of Neurosurgery Allegheny General Hospital Pittsburgh PA, and Clinical Associate Professor Department of Otolaryngology University of Pittsburgh Medical Center.