Cal. Health & Safety Code § 11839.33

All accusations against licensees shall be filed within three years after the act or omission alleged as the ground for disciplinary action, except that with respect to an accusation alleging a violation of subdivision (c) of Section 11839.31, the accusation shall be filed within two years after the discovery by the State Department of Health Services of the alleged facts constituting the fraud or misrepresentation prohibited by that section.