In 1941, Kissimmee Hospital and Clinic was founded at the home of physician Raymond Sessions.[4] In 1980, Kissimmee Memorial Hospital opened with 77 beds and increased its size to 120 beds in 1981.[4]
In early 1990, Florida Hospital wanted to purchase Kissimmee Memorial Hospital, from Basic American Medical Inc. of Indianapolis. But by early October, the talks ended due to financial issues.[5]
In 1992, Columbia Hospital Corporation acquired the hospital when it purchased Basic American Medical.[6][7]
In late August 1993, Florida Hospital purchased Kissimmee Memorial Hospital from Columbia Hospital Corporation. Officially making it the fifth hospital to be operated by the subsidiary.[8] Also Willow Creek Hospital in Arlington, Texas was sold by Columbia Hospital Corporation to Adventist Health System. Both hospitals were sold for $26.5 million, ending a lawsuit filed by Adventist Health System against Columbia Hospital Corporation.[8]
In late May 2002, the Agency for Health Care Administration approved 10 new beds for the hospital, increasing the number of beds of Florida Hospital Kissimmee to 50.[9][10]
In early May 2007, renovations were completed on the hospital's imaging department, a chapel was added and the number of patient beds was increased to 65.[11]
2013-present
On May 14, 2013, Florida Hospital Kissimmee had a groundbreaking ceremony to expand its emergency department from 7,023-square-foot to 22,560-square-foot for $7 million. It would be increasing the number of beds from 15 to 35, almost doubling the capacity of the emergency department.[12][13][14] It also would be remodeling its waiting room, adding two trauma rooms and treatment rooms for pediatrics.[15][16] On September 25, 2014, construction of the emergency department was finished.[15][16]
In early December 2013, the hospital had a second groundbreaking ceremony to construct a 94,000-square-foot, three-story patient tower with 80 private rooms for $60 million. This would double the size of the medical facility.[17]
On July 1, 2015, the construction of the patient tower was finished and was open for the public to view.[18][19][20] The tower also included a gift shop, chapel, prayer garden, kitchen with a hispanic themed cafeteria and two cardiac catheterizationlaboratories.[17][20] And on July 6, patients were officially moved into the new tower.[21]
On August 23, 2018, Florida Hospital Kissimmee announced that it would expand its surgical suite for $84 million, by adding 27,000-square-foot, it will have four new operating rooms and shell space for future expansion.[22][23][24]
On May 2, 2019, AdventHealth Kissimmee announced that it would be adding three stories onto its patient tower that was completed in 2015. The 123,000-square-foot addition with 80 private rooms would be constructed for $84 million, it would be increasing the number of beds to 240.[25][26][27] On January 4, 2022, the expanded patient tower opened.[28]
On January 1, 2021, the United States government passed a law requiring all hospitals to have their chargemaster on its website.[29] In early February 2023, almost all the AdventHealth hospitals had their chargemaster on their website, including AdventHealth Kissimmee.[30]
On April 1, 2024, the hospital opened a 30,400-square-foot floor expansion at its patient tower for $12.3 million. It added 40 private rooms, increasing the capacity of AdventHealth Kissimmee to 282 beds.[31]