S&P has revised the outlook to positive from stable and affirmed the "AA" rating on Philadelphia-based Main Line Health System's 2010A and 2012A fixed rate bonds.
"The positive outlook reflects MLH's robust earnings, cash flow and debt service coverage, which improved in 2015 despite operational challenges involved in legally separating from Thomas Jefferson University Hospitals on June 30, 2014," said S&P credit analyst Cynthia Keller.
The rating affirmation is based on several factors, including MLH's strong balance sheet, excellent market position in a demographically favorable area and health philanthropy.
A higher rating could be possible with continued robust financial performance.
More hospital outlook and credit rating actions:
S&P raises rating on Anderson Hospital's bonds
Fitch affirms Aurora Health Care's bond rating
Moody's assigns 'Aa3' to Sutter Health's bonds