S1983
When a state hospital suspends the privileges of a physician, there is no per se cognizable liberty or property interest imperiled by reporting the revocation to national organizations.
Where the board of a private hospital is partially appointed by the Board of Governors of a state university and the state university earns a share of the hospital's profits, the hospital is not necessarily a state actor acting under the color of state law.
http://media.ca7.uscourts.gov/cgi-bin/rssExec.pl?Submit=Display&Path=Y2016/D01-11/C:15-1816:J:Posner:aut:T:fnOp:N:1684866:S:0
Since 2011. An occasional commonplacing of the U.S. Circuit Courts of Appeal.
Neither an authoritative statement of the law nor legal advice. Quick work.