California Code, Welfare and Institutions Code - WIC § 14087.5

(c)(1) Notwithstanding subdivision (a) or any other provision of law, on and after the effective date of the act adding this subdivision,  1 the department shall have exclusive authority to negotiate the rates, terms, and conditions of county organized health systems contracts and contract amendments under this article or under Article 7 (commencing with Section 14490) of Chapter 8. As of that date, all references in this article to the negotiator or the California Medical Assistance Commission shall mean the department.

(2) For contracts executed pursuant to this article, the department shall disclose, upon request, each negotiated contract or contract amendment executed by both parties after July 1, 2007, which shall be considered public records for the purposes of the California Public Records Act (Division 10 (commencing with Section 7920.000) of Title 1 of the Government Code), including contracts that reveal the department's rates of payment for health care services, the rates themselves, and rate manuals.