; enrollment The Secretary shall provide procedures for the enrollment under the program under this section of individuals who are entitled to benefits under part A and enrolled under part B, but who are not enrolled in a Medicare Advantage plan (or in a plan under section 1876). Such procedures shall be consistent with the following: (1) There shall be an initial enrollment period during the last calendar quarter of 2020 that permits all individuals who are eligible to enroll at that time under this subsection to enroll and obtain benefits effective on January 1, 2021. (2) For individuals who are not eligible to enroll at such time but who subsequently become eligible, there shall be an individual enrollment period which is the 6-month period described in section 1882(s)(2)(A). (3) The Secretary shall permit eligible individuals to enroll at other times (and not less frequently than annually) in a uniform manner, but such enrollment shall be subject to a late enrollment penalty under subsection (d)(2)(B). (c) Benefits (1) In general The benefits provided under the program under this section shall consist of payment of the cost of deductibles, copayments, and other cost-sharing amounts (including amounts attributable to and permitted as balance billing) otherwise imposed or permitted under this title, subject to an annual deductible of $100. (2) Administration The Secretary shall coordinate payment of benefits under this part with those under parts A and B and may, for such purpose, enter into appropriate arrangements with qualified entities (which may include fiscal intermediaries and carriers). (3) No pre-existing condition limitations The benefits under this section shall not be subject to any pre-existing condition or similar underwriting limitation. (d) Premiums (1) Actuarial cost The Secretary shall, during September of each year beginning with 2020, determine a monthly actuarial rate for all enrollees under this section, which rate shall be applicable for months in the succeeding calendar year. Such