Notwithstanding any other law, the State Department of State Hospitals may contract with providers of health care services and health care network providers, including, but not limited to, health plans, preferred provider organizations, and other health care network managers. Hospitals that do not contract with the department for emergency health care services shall provide these services to the department on the same basis as they are required to provide these services. The department may only reimburse a noncontract provider of hospital or physician services at a rate equal to or less than the amount payable under the Medicare Fee Schedule, regardless of whether the hospital is located within or outside of California. An entity that provides ambulance or any other emergency or nonemergency response service to the department, and that does not contract with the department for that service, shall be reimbursed for the service at the rate payable under the Medicare Fee Schedule, regardless of whether the provider is located within or outside of California. Until regulations or emergency regulations are adopted in accordance with subdivision (g), the department shall not reimburse a contract provider of hospital services at a rate that exceeds 130 percent of the amount payable under the Medicare Fee Schedule, a contract provider of physician services at a rate that exceeds 110 percent of the amount payable under the Medicare Fee Schedule, or a contract provider of ambulance services at a rate that exceeds 120 percent of the amount payable under the Medicare Fee Schedule.