Statute entitles psychologists who are licensed in the state where the services are provided and have a doctorate degree in psychology, have had at least two years of clinical experience in a recognized health setting, or have met the standards of a national register of health service providers in psychology, to payment for services provided to recipients of medical assistance, subject to limitations and exclusions the department finds necessary on the basis of federal laws and regulations and of funds available for the medical assistance program. See definition section Iowa Code § 249A.2.