That post is, unfortunately wrong...as is your response.

"Obamacare made substantial cuts in how much Medicare pays hospitals, on the theory that they would make up the difference with more paying customers. The Republican bill does not restore any of the Medicare cuts." (NYTimes, May 4, 2017) 

Please show me where anyone EVER said anything about "defund(ing) Medicare"....or where it was anything other than Obamacare that made the cuts in how much Medicare pays hospitals.