Dr. Corey S. Maas is a globally renowned facial plastic surgeon based in San Francisco. He is board-certified in both Facial Plastic & Reconstructive Surgery and Otolaryngology-Head & Neck Surgery. With over 30 years of experience, Dr. Maas is a master of creating beautiful outcomes, even in the most challenging cases. His combination of education, skill, artistry and passion make Dr. Maas one of the most sought-after experts in his specialty worldwide.