Probate Code 4678

Summary:

Unless otherwise stated, a person authorized to make health care decisions for a patient has the same rights as the patient to request, receive, examine, copy, consent to disclosure of medical or any other health care information.

Other Relevant California Code Sections: 
Probate Code 4643 ("surrogate" defined as adult authorized to make a health care decision for the patient), 4682 (authority of agent become effective only when a determination is made that the principal lacks capacity and ceases when the principal recovers capacity)
Associated Federal Law(s): 
Uses and disclosures of protected health information: general rules : personal representatives - must be treated as the individual with respect to the protected health information