; and (II) in the case of an MA–PD plan, each of subclauses (I) and (II) of section 1860D–4(o)(2)(A)(iii) for a covered part D drug. (iv) Limit A Medicare Advantage organization may limit the number of items and services for which information is available on the website pursuant to the limits established by the Secretary under section 1804(e)(2)(A)(iv). (B) Integration with existing internet website If a Medicare Advantage organization offering a Medicare Advantage plan has in place an internet website for the plan as of the date of the enactment of this subsection, the organization shall integrate the requirements under subparagraph (A) into such website, including through the same log-in process as the existing website. (C) Link to an external internet website for information on covered part D drugs A Medicare Advantage organization offering a Medicare Advantage plan may provide the information described subparagraph (A)(ii)(II) for the plan through a link on the plan's internet website to an external internet website. (3) Alert regarding estimates of costs Each Medicare Advantage organization offering a Medicare Advantage plan shall ensure that enrollees of the plan receiving cost information under paragraph (1) or (2) are alerted that the information provided is an estimate and that the actual costs that the enrollee will be responsible for may vary. (4) Exemption The requirements of this subsection shall not apply to a Medicare Advantage organization if the total number of enrollees in all the Medicare Advantage plans offered by the organization is less than a number of enrollees determined appropriate by the Secretary. . (c) Prescription drug plans Section 1860D–4 of the Social Security Act ( 42 U.S.C. 1395w–104 ) is amended— (1) by redesignating the subsection (m) as added by section 6063(c) of the SUPPORT for Patients and Communities Act ( Public Law 115–271 ) as subsection (n)