Wall Street Is Keeping An Eye On The Planned Merger Between Johnson City-Based Mountain States Health Alliance And Kingsport-Based Wellmont Health System. Fitch Ratings Said It Had Placed Mountain State’s Bbb-Plus Bond Rating On Watch Due To The Announcement The Two Systems Have Recently Signed To Explore A Merger. Resolution Of That Watch Will Be Tied To The Completion Of The Merger And The Treatment Of Mountain State’s Debt Post-Transaction. ..