1. Short title This Act may be cited as the Commission on Sustaining Medicare and Social Security Act of 2018 . 2. Establishment There is established in the legislative branch a commission to be known as the Commission on Sustaining Medicare and Social Security (in this Act referred to as the Commission ). 3. Duty of the commission Not later than 1 year after the initial meeting of the Commission, the Commission shall submit to Congress a report on the Old-Age, Survivors, and Disability Insurance program under title II of the Social Security Act and the Medicare program under title XVIII of the Social Security Act, including— (1) the impact of using alternative indexes on beneficiaries and the Trust Funds, including the Consumer Price Index for the Elderly (CPI–E); (2) the impact of using alternative premium formulas for the Medicare program under title XVIII of the Social Security Act on beneficiaries and the Federal Supplementary Medical Insurance Trust Fund, including premium formulas that consider financial hardships and socioeconomic status; (3) program reforms to increase the sustainability of the Old-Age, Survivors, and Disability Insurance program under title II of the Social Security Act and the Medicare program under title XVIII of the Social Security Act; and (4) program reforms to prevent fraud, increase integrity, and reduce improper payments. 4. Members (a) Number and appointment The Commission shall be composed of 11 members. Of the members of the Commission— (1) 3 shall be appointed by the President, including— (A) the Commissioner of the Social Security Administration or a designee of the Commissioner; and (B) the Administrator of the Centers for Medicare and Medicaid Services or a designee of the Administrator; (2) 2 shall be appointed by the Speaker of the House of Representatives, consisting of— (A) 1 nongovernmental expert in the Old-Age, Survivors, and Disability Insurance program under title II of the Social Security Act