Cal. Family Code § 6922

(a) A minor may consent to the minor’s medical care, vision care, or dental care if all of the following conditions are satisfied: (1) The minor is 15 years of age or older. (2) The minor is living separate and apart from the minor’s parents or guardian, whether with or without the parent’s or guardian’s consent and regardless of the duration of the separate residence. (3) The minor is managing the minor’s own financial affairs, regardless of the source of the minor’s income. (b) The parents or guardian are not liable for medical care, vision care, or dental care provided pursuant to this section. (c) A physician and surgeon, optometrist, or dentist may, with or without the consent of the minor patient, advise the minor’s parent or guardian of the treatment given or needed if the physician and surgeon, optometrist, or dentist has reason to know, on the basis of the information given by the minor, the whereabouts of the parent or guardian.