S&P Global Ratings placed Mission (Texas) Regional Medical Center on CreditWatch negative.
The ratings watch change is a result of MRMC's inability to find enough savings to offset the loss of its supplemental payments, combined with the continued losses the medical center experienced during the third quarter of 2016.
The ratings agency also affirmed the "CCC" rating on MRMC's $20.325 million of combined series 2005, 2007 and 2008 bonds.
The outlook is negative, reflecting S&P's expectation MRMC will continue to see weak operating income levels in FY 2016.