Okla. Stat. tit. 56 § 175
It shall be the duty of the county department in the several respective counties in accordance with the rules and regulations of the Commission to take the initiative in ascertaining the need for assistance of persons eligible for assistance under the provisions of subsection (c) of Section 164 of this title and report in writing on forms furnished by the Department its recommendations showing the nature of the need for assistance, the kind and amount of assistance needed in each case. The Department shall have authority to enter into agreements with physicians, nurses, hospitals, agencies and individuals for the purpose of carrying into effect the provisions of subsection (c) of Section 164 of this title. All claims approved for payment under this section shall be drawn against the Human Services Medical and Assistance Fund and paid in the same manner as other expenditures.
Okla. Stat. tit. 56, § 175