Cal. Welf. and Inst. Code § 14161
Carriers and providers of Medi-Cal benefits shall be required to utilize uniform accounting and cost-reporting systems as shall be developed and adopted by the department. If any other provision of law provides for uniform accounting and cost-reporting systems for hospitals, the department shall adopt these systems.
Carriers and providers of Medi-Cal benefits shall provide cost information to the department as is necessary in order to conduct studies to determine payment for services provided under this chapter, including but not limited to copies of any Medicare cost reports and settlements, and any Medicare audit reports.
Failure to comply with the provisions of this section shall be cause for suspension from participation under this chapter.
The department shall conduct such studies as necessary to determine payments for services provided under this chapter.
Ca. Welf. and Inst. Code § 14161