Dermatologists in Silver Spring, MD. Specializing in Medical, Surgical, and Cosmetic Dermatology. Phone: 301-681-7000. Mon-Friday 8am 4pm. Our physicians and staff, Dr. Norman Lockshin, Dr. Benjamin Lockshin, Dr. Amy Cole, Dr. Saurabh Singh, Dr. Rishi Patel, Dr. Melissa Abrams, Dr. Alicia Cool, Dr. Edward Cowen, Dr. Jennifer DeSimone, and Dr. Alan Harrington are dedicated to helping you at...