About Dr. Corey S. Maas

World Renowned Facial Plastic Surgeon

Board-certified facial plastic surgeon, Corey S. Maas, is one of the most highly regarded and sought-after facial plastic surgeons in the world.


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.

In 2001, Dr. Maas founded The Maas Clinic for Aesthetic and Facial Plastic Surgery in San Francisco’s picturesque Pacific Heights neighborhood. He is also the Medical Director of The Appearance Care Center, a state-of-the-art medical day spa. Patients across the United States and overseas visit the San Francisco Bay Area to seek Dr. Maas’ care.

“It’s hard to describe the joy of watching a patient transform — not just in how they look, but in how they feel and how they carry themselves. Plastic surgeons truly change lives. I am grateful every day that my work enables people to become their best, most authentic selves.” — Dr. Maas

Education & Training

After graduating from the University of Florida College of Medicine with the highest honors, Dr. Maas completed an internship in General Surgery and a Head-and-Neck Surgery residency at the St. Louis University College of Medicine. He went on to complete his specialty training with a fellowship in Facial Plastic and Reconstructive Surgery at the University of California, San Francisco.

His skill and dedication to his craft eventually led to serving as the Chief of the Division of Facial Plastic and Reconstructive Surgery at UCSF for more than 11 years. Dr. Maas left the full-time faculty at UCSF in 2001 to establish his private practice, The Maas Clinic.

Awards & Recognition

Dr. Maas has received numerous awards and accolades throughout his career. His honors include the Readers’ Choice Award for Best Cosmetic Surgeon by the San Francisco Examiner and SF Weekly, and the prestigious Sir Harold Delf Gilles Award from the American Academy of Facial Plastic and Reconstructive Surgery (AAFPRS).

Dr. Maas is regularly featured in newspapers, magazines, television broadcasts and podcasts. His expertise has appeared in Cosmetic Surgery Times, Vogue, Allure, NewBeauty, The Zoe Report, InStyle and more.

“Dr. Maas is a leader in his field. I have been using his services for over 20 years and continue to be amazed [at] how consistently great Dr. Maas is. I would recommend Dr. Maas and his clinic to anyone in need of great care.” — Madeleine M.

Advancing the Specialty

Dr. Maas is dedicated to advancing the field of facial plastic surgery in and out of the operating room. He has co-authored more than 150 articles, written many book chapters and been principal investigator for over 40 clinical trials. He lectures regularly at society meetings, both nationally and internationally.

Throughout his career, Dr. Maas has been an active member of professional organizations, serving on various committees and boards. His service includes holding the roles of President of the California Society of Facial Plastic Surgery and President of the American Academy of Facial Plastic and Reconstructive Surgery.

Supporting the Next Generation

Dr. Maas is passionate about fostering emerging talent and amplifying fresh voices in the facial plastic surgery specialty. He is an Associate Clinical Professor at the University of California, San Francisco, where he teaches medical students and residents in the Department of Otolaryngology-Head & Neck Surgery.

In addition to his work at UCSF, Dr. Maas has been a fellowship director for over 20 years. He chooses one qualified applicant each year to receive advanced training in facial plastic and reconstructive surgery, as well as how to conduct research in the field.

“There is a time-honored tradition in medicine of sharing your knowledge with the next generation. It’s a joy to watch my fellows hone their skills and develop into exceptional surgeons. In return, their inquisitiveness challenges me to refine my own ideas and processes, helping me become a better surgeon.” — Dr. Maas

Treatment Philosophy

Dr. Maas delivers an outstanding experience at every level. From a patient’s first visit to their final follow-up, Dr. Maas provides compassionate and attentive care coupled with the most advanced medical techniques and technologies. His work blends science and artistry for naturally beautiful and refined results.

With a clear vision and strong principles, Dr. Maas seeks to elevate the patient experience. He is dedicated to helping patients realize their aesthetic goals while remaining true to his core values of safety, integrity, innovation and excellence.

Out of the Office

Dr. Maas believes that facial plastic surgery is both a science and an art. As such, he frequently spends his time outside the office improving that artistic sensibility by painting, drawing and playing the guitar. Dr. Maas is also a pilot and an athlete who enjoys skiing, biking, hiking and golfing with his wife and two sons whenever the opportunity arises.

“Dr. Maas is the best — calm, collected, professional and such clean work. I am just blown away at the quality of care. If you need cosmetic or reconstructive work done — Dr. Maas all the way.” — Amy B.

In the Community

Dr. Maas believes in the value of giving back. For more than 15 years, he has provided reconstructive surgery services free of charge to victims of domestic violence through a special project sponsored by the American Academy of Facial and Reconstructive Surgery. He also volunteers his services to the Wounded Warrior Project, an organization that provides support for wounded veterans.

One of Dr. Maas’ proudest accomplishments is his 501c3 non-profit organization Beauty for Books. Since 2007, Beauty for Books has collected more than one thousand books annually for children in local Bay Area school districts. Beauty for Books has also established a scholarship to help current teachers expand their degrees by completing an online library-credentialing course.

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Dr. Corey S. Maas

World Renowned Facial Plastic Surgeon