California Code, Business and Professions Code - BPC § 2228

(a) Requiring the licensee to obtain additional professional training and to pass an examination upon the completion of the training.  The examination may be written or oral, or both, and may be a practical or clinical examination, or both, at the option of the board or the administrative law judge.

(b) Requiring the licensee to submit to a complete diagnostic examination by one or more physicians and surgeons appointed by the board.  If an examination is ordered, the board shall receive and consider any other report of a complete diagnostic examination given by one or more physicians and surgeons of the licensee's choice.

(c) Restricting or limiting the extent, scope, or type of practice of the licensee, including requiring notice to applicable patients that the licensee is unable to perform the indicated treatment, where appropriate.

(d) Providing the option of alternative community service in cases other than violations relating to quality of care.