In the case of an individual who has regularly received home-based primary care services, as determined by the Secretary, during the 12-month period immediately preceding the individual's attribution to an independence at home medical practice for the first time, the Secretary may, as determined appropriate, apply clause (i) of subsection (e)(2)(D) (relating to a prior nonelective hospital admission) by increasing the 12-month period described in such subsection as it relates to such clause to a period of up to 24 months. (l) Limitation on review There shall be no administrative or judicial review under section 1869, section 1878, or otherwise of— (1) the attribution of applicable beneficiaries to an independence at home medical practice