On February 14, 2014, CMS published a notice announcing an open period for additional organizations to be considered for participation in Models 2, 3, and 4 of the Bundled Payments for Care Improvement initiative. The three models are described as follows:

• Model 2–Retrospective bundled payment models for hospitals, physicians, and post-acute providers for an episode of care consisting of an inpatient hospital stay followed by post-acute care.
• Model 3–Retrospective bundled payment models for post-acute care where the episode does not include the acute inpatient hospital stay.
• Model 4–Prospectively administered bundled payment models for the acute inpatient hospital stay and related readmissions.

Interested parties must submit the requisite forms by April 18, 2014.