Dr. Norman A. Lockshin, founder of DermAssociates, PC, began his practice in 1974 in Silver Spring, Maryland. For more than 40 years, Dr. Lockshin has built one of the largest and most respected dermatology practices in the Washington, DC metro area. Today, DermAssociates has nine board-certified physicians including a pediatric dermatologist, a Mohs surgeon, and a dermatopathologist.