Medical Properties Trust, Inc. is a real estate investment trust (REIT), which is engaged in the business of investing in, owning, and leasing healthcare real estate. The Company conducts all of its operations through its subsidiary, MPT Operating Partnership, L.P. The Company acquires and develops healthcare facilities and lease the facilities to healthcare operating companies under long-term net leases. It also makes mortgage loans to healthcare operators collateralized by their real estate assets. In addition, the Company selectively make loans to certain of its operators through its taxable REIT subsidiaries (TRS). It has investments in approximately 419 facilities in 32 states in the United States in six countries in Europe, one country in South America, and across Australia. The Company's portfolio consists of approximately 419 properties leased or loaned to 51 operators, of which two are under development and five are in the form of mortgage loans.