In this chapter, the following terms have the meanings indicated. Terms Defined. “Claim” means a demand for payment, whether or not the right is reduced to judgment, liquidated, unliquidated, fixed, contingent, matured, unmatured, disputed, undisputed, legal, equitable, secured or unsecured. “Department” means the Maryland Department of Health, the single State agency designated to administer the Maryland Medical Assistance Program under Title XIX of the Social Security Act, 42 U.S.C. §1396 et seq. “Program” means the Maryland Medical Assistance Program. “Provider” means an individual, association, partnership, corporation, or unincorporated group licensed or certified to provide health care services for recipients and who, through appropriate agreement with the Department, has been identified as a Program provider by the issuance of an individual account number. “Recipient” means: An individual who is certified as eligible for, and is receiving, Program benefits; An individual who was certified as eligible for and received Program benefits; or The successor in interest of a person identified in §B(6)(a) or (b) of this regulation. “Third party” means any individual, entity or program that is or may be liable to pay all or part of the expenditures for Program benefits.