Contact DC Office 202-296-4900 1155 21st St NW, Suite M-400Lafayette Centre, Bldg 3Washingon, DC 20036Fax: 202-293-3409 21st Street Northwest Rockville Office 301-770-2424 3200 Tower Oaks Blvd, Suite 210Rockville, MD 20852Fax: 301-770-2555 Tower Oaks Boulevard Palisades Eye Surgery Center 301-657-8200 4831 Cordell AveBethesda, MD 20814Fax: 301-657-4121 Cordell Avenue Friendship Surgery Center 301-215-7347 5550 Friendship BlvdChevy Chase, MD 20815 Friendship Boulevard Washington Hospital Center 202-877-7000 110 Irving St NWWashington, DC 20010 Irving Street Northwest TLC Laser Eye Centers 301-881-2020 11200 Rockville Pike, Suite 150CRI BuildingRockville, MD 20852 Rockville Pike