Welcome to Greater Washington Dermatology, a part of Advanced Dermatology and Cosmetic Surgery. Dr. Barnett, Dr. Colonna, Dr. Redbord and PA’s Pollicino & Clair are an experienced team of dermatology professionals that diagnose and treat all types of skin, hair and nails conditions. Our practice upholds the highest standards, and we appreciate the trust you have placed in us. For over 26 years, Greater Washington Dermatology has been offering comprehensive dermatologic services including medical, surgical, and cosmetic dermatologic care for patients of all ages from pediatric to geriatric, all in a comfortable and caring setting. We feel that quality care depends upon both personal and professional excellence, and we will do everything we can to meet your dermatological needs.