General policies for payment that are applicable to all providers are set forth in COMAR 10.09.36.04. The Department shall allow a single transportation payment for each trip the portable X-ray provider makes to a particular location. The Department shall reimburse for covered services at the lesser of: The provider’s customary charge unless the service is free to individuals not covered by Medicaid; or The Department’s fee schedule. The Department’s fee-schedule is contained in COMAR 10.09.02.07D. Payments on Medicare cross-over claims are authorized if : The provider accepts Medicare assignment; Medicare makes direct payment to the provider; Medicare has determined that the services are medically necessary; The services are covered by the program; and The initial billing is made directly to Medicare according to Medicare guidelines. The Department shall make supplemental payment on Medicare claims subject to the following provisions: Coinsurance shall be paid at the lesser of: 100 percent of the coinsurance amount; or The balance remaining after the Medicare payment is subtracted from the Medicaid rate. The Program may not make a direct payment to a recipient. Billing time limitations are those set forth in COMAR 10.09.36.06. The provider may not bill the Program or recipient for: Completion of forms and reports; Broken or missed appointments; Services rendered by mail or telephone; and Providing a copy of a recipient’s medical record when requested by another licensed provider on behalf of the recipient. The portable X-ray provider shall identify the individual who ordered the portable X-ray services by recording the individual practitioner’s National Provider Identifier (NPI) number on the claim.