Hoag Memorial Hospital Presbyterian and its affiliate Hoag Orthopedic Institute are expanding their presence in South Orange County, as well as building a new “fast track” emergency room in Newport Beach.

Age groups over 55 years old are expected to increase significantly in Orange County in the next decade, said Hoag Orthopedics Chief Executive Kim Mikes.

“Aliso Viejo and the surrounding areas don’t have a higher percentage of 55+ than other areas in OC, but Laguna Woods, which is 2.5 miles is 81% over 65,” she said. “That presents a large long-term market for us for orthopedic, joint replacement, spine and sports-related injuries.”

The new facility, which employs 50 people, has four extra-large operating rooms around 500 to 600 square feet compared to a typical 350 to 400 square feet. The surgery rooms have space for robots and cameras to help both with surgeries and teaching.