Medical Properties Trust, Inc. is a real estate investment trust (REIT). The Company focuses on investing in and owning net-leased healthcare facilities across the United States and selectively in foreign jurisdictions. The Company's segment is its investments in healthcare real estate, including mortgage and other loans, as well as any equity investments in its tenants. The Company conducts its operations through MPT Operating Partnership, L.P. The Company acquires and develops healthcare facilities, and leases the facilities to healthcare operating companies under long-term net leases. The Company makes mortgage loans to healthcare operators collateralized by their real estate assets. As of February 24, 2017, the Company's portfolio consisted of 232 properties, including 215 facilities (of the 220 facilities that it owns) were leased to 30 tenants, five were under development, and the remaining assets were in the form of mortgage loans to four operators.