National Library of MedicineVisit WebsiteGet Directions Details Amenities Details Largest medical library in the world; historic, rare book department, exhibits, tours and interactive displays. Hours See website for hours. Location8600 Rockville PkBethesda, MD20894Get DirectionsContact Local Phone: 301-402-8878 Fax: 301-496-4450 US Toll Free: 888-346-3656SocialFacebookTwitterYouTubeMapCapital Region Amenities ADA AccessibleEducational Resources AvailableGroup-FriendlyGuided Tours/Guide AvailableOn-site Motorcoach ParkingPlaces NearbyAttractions, Accommodations, & DiningCanal Quarters-C&O Canal Trust-Lockhouse 6Learn MoreAccommodationsCanal Quarters-C&O Canal Trust- Lockhouse 10Learn MoreAttractions, Accommodations, & DiningBethesda North Marriott Hotel & Conference CenterLearn MoreAttractions, Accommodations, & DiningEven Hotel-RockvilleLearn MoreAttractions, Accommodations, & DiningAmerican Inn of BethesdaLearn MoreSee More For Capital Region