Mayo Clinic Goes Big With $1.9B Phoenix Hospital Expansion

The Mayo Clinic is flexing its muscles in north Phoenix with a $1.9 billion expansion of its local hospital, on the heels of a $748 million growth spurt.

The nonprofit Minnesota-based health care system plans to add 1.2 million square feet to its Mayo Clinic Hospital at 5777 East Mayo Boulevard, the Phoenix Business Journal reported.

Plans call for adding 48 rooms to the 368-bed hospital, while increasing its clinical space by 59 percent.

“It’s going to be our largest investment ever here in Arizona,” Dr. Richard Gray, CEO of Mayo Clinic Arizona, told the newspaper.

The rooms would be added to the west tower, part of the $748 million expansion launched in 2021. A three-story medical building — expandable up to 20 stories — with 360,000 square feet would be added to the east side of the 228-acre hospital campus.

Another three-story medical building will be expanded to seven stories, comprising 100,000 square feet, Gray said.

Other additions include a parking garage for 1,000 cars and a two-story, climate controlled promenade allowing hospital staff and patients to walk between buildings out of the searing Arizona summer heat.

Buildout, with a total of four hospital buildings designed by San Francisco-based Gensler, is expected by 2031. “We will hit the ground running,” Gray told the Business Journal.

The $1.9 billion investment is not part of Mayo’s 120-acre Discovery Oasis, a biotech hub on the north side of the teaching hospital, but will add to its collaborative ecosystem, Gray said.

In a separate deal, Mayo Clinic and Florida-based Brooks Rehabilitation are building an 80,000-square-foot, $70 million rehabilitation hospital at the Phoenix campus, expected to open next year.

The Mayo Clinic is expanding its other hospitals, including a $4.5 billion upgrade to its flagship campus in Rochester, Minnesota, and shelling out hundreds of millions of dollars for upgrades to its campus in Jacksonville, Florida, Gray said.

— Dana Bartholomew