Mr. Gillis joined Rehoboth McKinley in November from Great Falls (Mont.) Healthcare, where he served as network CEO, according to a news release. He is replacing Bill Patten, who served as interim CEO for one year.
Mr. Gillis previously held leadership positions at hospitals in Florida, Texas, North Carolina, and Arizona, and also worked as a consultant.
Rehoboth McKinley is a nonprofit health system providing care to communities in northwestern New Mexico and eastern Arizona.