Each health maintenance agreement issued or renewed after January 1, 1990, that provides benefits for hospital or medical care shall provide benefits for screening or diagnostic mammography services, provided that such services are delivered upon the recommendation of the patient's physician or *advanced registered nurse practitioner as authorized by the state board of nursing pursuant to chapter 18.79 RCW or physician assistant pursuant to chapter 18.71A RCW.
All services must be provided by the health maintenance organization or rendered upon referral by the health maintenance organization. This section shall not be construed to prevent the application of standard agreement provisions, other than the cost-sharing prohibition provided in RCW 48.43.076, that are applicable to other benefits. This section does not limit the authority of a health maintenance organization to negotiate rates and contract with specific providers for the delivery of mammography services. This section shall not apply to medicare supplement policies or supplemental contracts covering a specified disease or other limited benefits.