Okla. Stat. tit. 74, § 74-1307.1: Change of primary care physician within HMO

No employee or dependent who participates in a health

maintenance organization (HMO) through the Oklahoma Employees

Insurance and Benefits Act shall be denied the right of changing the

primary care physician to any other primary care physician within

the HMO. The employee or dependent shall notify the HMO in writing

of any change in the choice of primary care physician forty-five

(45) days in advance of the change by certified mail with return

receipt requested. Any such change in a primary care physician

shall not be subject to the approval of the HMO, the Oklahoma Health

Care Authority or state agency.