California Code, Family Code - FAM § 6922

(a) A minor may consent to the minor's medical care or dental care if all of the following conditions are satisfied:

(b) The parents or guardian are not liable for medical care or dental care provided pursuant to this section.

(c) A physician and surgeon 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 or dentist has reason to know, on the basis of the information given by the minor, the whereabouts of the parent or guardian.