LIMITATIONS ON HEALTH COVERAGE AND CONTRACTS: A health maintenance organization that contracts with a provider for a full plan year’s services to be delivered to enrollees under an individual or group health maintenance organization contract that is delivered, issued for delivery or renewed in this state shall execute the provider contract no sooner than ninety days from the beginning date of the plan year in which the health care services or supplies are to be delivered pursuant to that provider contract. An individual or group health maintenance organization contract that is delivered, issued for delivery or renewed in this state and that provides prescription drug benefits categorized or tiered for purposes of cost sharing through deductibles or coinsurance obligations shall not make any of the following changes to coverage for a prescription drug less than ninety days prior to the beginning date of the plan year in which these changes are to take effect or at any time during a current plan year.