The provider may not require payment in excess of the Medicare payment pertaining to the applicable specialty under Medicare for comparable services at the time services were rendered, or the provider's usual and customary charge, whichever is less. An insurer shall use the Medicare payment applicable in this Commonwealth to determine the appropriate payment. The applicable Medicare payment shall be utilized even when a service is not a reimbursed service under Medicare. If no Medicare payment has been calculated, payment shall be 80% of the provider's usual and customary charge.
31 Pa. Code § 69.21