Red Line: Take the Red Line train to Harvard Square, and then get on the #69 bus (Harvard to Lechmere via Cambridge Street) to the Cambridge Hospital stop.
Green Line: Take the Green Line trolley to Lechmere Station and then get on the #69 bus (Lechmere to Harvard via Cambridge Street) to the Cambridge Hospital stop.
Bus Routes:
#69 (Harvard Square to Lechmere Station via Cambridge Street) stops in front of the hospital.
#83 (Central Square to Rindge Avenue) Stops at Inman Square. Hospital is two blocks toward Harvard Square.
#91 (Sullivan to Central Square) Stop at Inman Square. Hospital is two blocks toward Harvard Square.