Cal. Welf. and Inst. Code § 14022.1
Any nursing facility or any category of intermediate care facility for the developmentally disabled participating in the Medi-Cal program shall supply to the department full and complete information as to the identity (a) of each person having, directly or indirectly, an ownership interest of 10 percent or more in the facility, or, who is owner, in whole or part, of any mortgage, deed of trust, note, or other obligation secured, in whole or part, by the facility, or any of the property or assets of the facility, (b) in case a facility is organized as a corporation, of each officer and director of the corporation, and (c) in case a facility is organized as a partnership, of each partner; and shall promptly report any changes which would affect the current accuracy of the information so required to be supplied.
Ca. Welf. and Inst. Code § 14022.1