The provider shall submit his request for payment on the form designated by the Department including all required documentation. The Department reserves the right to return to the provider, before payment, all invoices not properly signed and completed. The provider shall bill the provider's customary fees, but may not bill a fee in excess of that charged the general public for similar services, except for injectable drugs and dispensed medical supplies, in which case the provider shall charge the Program the provider's acquisition cost. If the service is free to individuals not covered by Medicaid: The provider: May charge the Program; and Shall be reimbursed in accordance with §D of this regulation; and The provider's reimbursement is not limited to the provider's customary charge. The Program shall pay for medically necessary covered services at the lower of the provider's amount billed to the Program or the maximum reimbursement rates set forth in COMAR 10.09.02.07D. Payments on Medicare claims are authorized if: The provider accepts Medicare assignments; Medicare makes direct payment to the provider; Medicare has determined that services were medically justified; Services are covered by the Program; Initial billing is made directly to Medicare according to Medicare guidelines. Supplemental payment on Medicare claims are made subject to the limitations of the State budget and the following provisions: Deductible insurance will be paid in full; Beginning with August 1, 2010 dates of service, coinsurance shall be paid: In full for the following: Mental health services; CPT codes that are priced by report; Claims for anesthesia services; Claims from a federally qualified health center; and HCPCS codes beginning with A through W; and For all other claims, at the lesser of: 100 percent of the coinsurance amount; or The balance remaining after the Medicare payment is subtracted from the Medicaid rate; and Services not covered by Medicare, but by the Program, according to §E above. The provider may not bill the Department or the participant for: Completion of forms and reports; Broken or missed appointments; Professional services rendered by mail; Laboratory or X-ray services not performed by the provider or under the direct supervision of the provider; or Photocopying of medical records when requested by another licensed provider on behalf of the participant. The Program will make no direct payment to participants. The Program shall reimburse providers for all laboratory services according to the fees established under COMAR 10.09.09.07 and for all radiological services under COMAR 10.09.02.07. Billing time limitations for claims submitted pursuant to this chapter are set forth in COMAR 10.09.36.