In 2014, the hospital was designated a Level III trauma center by the Colorado Department of Public Health and Environment.

[16][17][18] On October 30, AdventHealth Porter closed when it lost heat and hot water at 8:45 a.m. after their second boiler failed during a cold snap.

[23][24][25] On February 21, 2018, the Colorado Department of Public Health and Environment was told of a sterilization breach at Porter Adventist Hospital.

[28][29] On April 3, the Colorado Department of Public Health and Environment did a second survey after hearing about inadequately cleaned surgical equipment.

[26][30][32] During its investigation the Colorado Department of Public Health and Environment found out that the hospital knew that patients were getting infections as early as 2017.

On the same day Porter Adventist Hospital suspended all surgeries until the Colorado Department of Public Health and Environment considered it safe to reopen all operating rooms.

[31][35] On April 11, the Colorado Department of Public Health and Environment found some patients had surgical site infections.

The Colorado Attorney General also agreed that the documents should have never been released and ordered them destroyed, which the plaintiffs refused to do.

[51][52] On October 25, 2023, AdventHealth Porter signed a commercial agreement with Aclarion to bring their Nociscan technology to Denver.

The hospital will become the first health facility in the city to use the technology, to treat patients with chronic low back pain.