California Code, Business and Professions Code - BPC § 1671

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

(b) Requiring the licentiate to submit to a complete diagnostic examination by one or more physicians appointed by the board, if warranted by the physical or mental condition of the licentiate. If the board requires the licentiate to submit to such an examination, the board shall receive and consider any other report of a complete diagnostic examination given by one or more physicians of the licentiate's choice.

(c) Restricting or limiting the extent, scope or type of practice of the licentiate.

(d) Requiring restitution of fees to the licentiate's patients or payers of services unless such restitution has already been made.

(e) Providing the option of alternative community service in lieu of all or part of a period of suspension in cases other than violations relating to quality of care.