Medical Center is an island-platformed Washington Metro station in Bethesda, Maryland, United States. The station was opened on August 25, 1984, and is operated by the Washington Metropolitan Area Transit Authority (WMATA). Providing service for the Red Line, the station serves the National Institutes of Health campus and the Walter Reed National Military Medical Center, and is located at Rockville Pike and South Drive. Since there is little retail in the area and no commuter parking lot, this station is used almost exclusively by employees and visitors to those two institutions.

The station opened on August 25, 1984.^[2][3] Its opening coincided with the completion of 6.8 miles (10.9 km) of rail northwest of the Van Ness–UDC station and the opening of the Bethesda, Friendship Heights, Grosvenor, and Tenleytown stations.^[2][3][4]

In September 2009, Montgomery County submitted a $20 million federal grant application to build a pedestrian tunnel under Rockville Pike to improve access to the Medical Center stop from Walter Reed Medical Center. Currently, there is only a crosswalk here, with many passengers crossing the heavily travelled street from Walter Reed on the east side of MD 355 to get to the station on the west side. Construction would have originally occurred in 2011,^[5] but the project was not approved until 2013.^[6] The project is fully funded at $68 million, mostly through the Department of Defense, and includes installation of new deep elevators, improvement of surface bicycle and pedestrian facilities, as well as an extension of the left turn lane on southbound MD 355. The project began construction in December 2017, and is expected to be completed in late 2021.^[7][8]

Like most stations on the Red Line's western segment, Medical Center is very deep: its platform is located 202 feet below street level. Unlike most other Red Line stations, the escalator bank emerges above ground outside, rather than in a subterranean landing.^[9]