Martha Lawlor is a non-participating provider of Medicare. If you are a Medicare beneficiary this means the provider can charge up to 15% more than Medicare's approved amount for the cost of rendered services, in addition to your normal deductible and coinsurance costs. There are some states that restrict the limiting charge when you see non-participating provider. If you pay the full cost of your care up front, your non- participating provider should still submit a claim to Medicare. Afterward, you should receive reimbursement from Medicare for up 80% of the Medicare-approved amount for the services rendered.