Patient Appointment Setting Great Lakes, Illinois Please select the type of service you are requesting: Request a Primary Care Appointment A Health Net representative will contact you within one business day to schedule your appointment. If you are a TRICARE Prime beneficiary and need to schedule an Urgent or Specialty care appointment with a MTF provider, please call: 1.800.941.4501 Cancel an Appointment Please select the type of TRICARE beneficiary you are: Prime    Standard    Extra   Unknown