Iowa Code § 514.8: Contracts with providers — approval.

The contracts by any such corporation with participating hospitals for hospital service or with participating physicians and surgeons, dentists, podiatric physicians, osteopathic physicians, or osteopathic physicians and surgeons for medical and surgical service, or with participating pharmacies for pharmaceutical service, or with participating optometrists for optometric service, or with other providers shall at all times be subject to the approval of the commissioner of insurance.