Physicians enroled with MSP may choose to be "opted-in" or "opted-out".
Opted-in physicians are paid directly by MSP for their services. A physician who is opted-in to MSP may not charge a patient for an insured benefit.
Opted-out physicians bill patients directly for their services, then the patients may claim reimbursement from MSP. By law, an opted-out physician may not charge a patient more for an insured benefit than the prescribed MSP amount.