An organization which enters into a preferred provider arrangement shall file annually with the commissioner, within one hundred and twenty days of the close of its fiscal year, a report covering its prior fiscal year. The report shall include:
(a) the number of covered persons under health benefit plans and workers' compensation insurance or self-insured workers' compensation plans, which include preferred provider arrangements;(b) financial and utilization date of health benefit plans and workers' compensation insurance or self-insured workers' compensation plans, which include preferred provider arrangements;(c) a list of preferred providers; and(d) such other information as the commissioner may reasonably require.Mass. Gen. Laws ch. 176I, § 7