Al-Hammouri has been the chairman and general manager at the Specialty Hospital in Jordan since 1999. In March 2024, the hospital signed an agreement with Algerian Social Security to treat patients at its premises. In 2023, it signed an agreement to design an expansion project for Specialty Hospital that includes two new towers connected with the current hospital by a bridge: the main tower is a hospital with over 300 beds, while the other tower is for outpatient services and specialized centers. Al-Hammouri was the chairman of the Private Hospitals Association in Jordan for 18 years.