Dr. Friedenthal is a UCSF Clinical Professor and Past Chairman of the Department of Plastic Surgery at the California Skin Institute with offices in San Francisco, Santa Rosa, and San Mateo. He is a member of the American and Canadian Societies of Plastic Surgery. Dr. Friedenthal is a Diplomate of the American Board of Plastic Surgery. His approach to Plastic Surgery creates a natural, enduring and youthful appearance for his patients.