A number of other services, including diagnostic imaging and laboratory testing, also resumed Monday at Hotel-Dieu Saint Joseph Hospital in Perth-Andover.
The lower level of the hospital was flooded in March after ice jams caused the St. John River to spill its banks.
Twenty hospital beds also opened Monday, which will allow for some patients to be transferred to Perth-Andover from other hospitals in the region.
Meanwhile, Education Minister Jody Carr announced Monday that a high school closed after the flood will be ready for classes in September.
The government says repairs to Southern Victoria High School include the replacement of ceilings, windows and doors as well as installing new boilers.