The clinic on Manhattan’s Upper East Side where Joan Rivers went into cardiac arrest has agreed to take corrective steps to maintain its accreditation with the federal Centers for Medicare and Medicaid Services. CMS has confirmed to ABC News the plan of action is acceptable and that if Yorkville Endoscopy passes an unannounced inspection in the coming days it will not lose its certification on Jan. 7. Rivers went into cardiac arrest after undergoing a procedure at the Manhattan medical clinic, and died a few days later.