(a) A controlling health plan must do all of the following:
(1) Obtain an HPID from the Enumeration System for itself.
(2) Disclose its HPID, when requested, to any entity that needs the HPID to identify the health plan in a standard transaction.
(3) Communicate to the Enumeration System any changes in its required data elements in the Enumeration System within 30 days of the change.
(b) A controlling health plan may do the following:
(1) Obtain an HPID from the Enumeration System for a subhealth plan of the controlling health plan.
(2) Direct a subhealth plan of the controlling health plan to obtain an HPID from the Enumeration System.
(c) A subhealth plan may obtain an HPID from the Enumeration System.
(d) A subhealth plan that is assigned an HPID from the Enumeration System must comply with the requirements that apply to a controlling health plan in paragraphs (a)(2) and (a)(3) of this section.