Final answer:
A written complaint is required for filing a HIPAA health information privacy or security complaint. It can be filed by a patient or a healthcare provider.
Step-by-step explanation:
A requirement for filing a HIPAA health information privacy or security complaint is a written complaint.
When someone believes their health information privacy or security has been violated, they can submit a written complaint to the relevant authorities. It is not necessary for the complaint to be filed by a healthcare provider; it can be filed by a patient as well.