Cal. Bus. & Prof. Code § 2401
(d) Notwithstanding Section 2400, a hospital that is owned and operated by a licensed charitable organization, that offers only pediatric subspecialty care, that, before January 1, 2013, employed licensees on a salary basis, and that has not charged for professional services rendered to patients may, commencing January 1, 2013, charge for professional services rendered to patients, provided the following conditions are met:
(e) Notwithstanding Section 2400, a federally certified critical access hospital may employ licensees and charge for professional services rendered by those licensees to patients, provided both of the following conditions are met: