Moody's Investors Service has assigned an "A1" rating to Walnut Creek, Calif.-based John Muir Health's proposed series 2016 bonds, affecting up to $235 million.
The rating assignment reflects the system's large size, solid market position and excellent reputation in a competitive area.
Moody's also affirmed the "A1" rating on approximately $390 million of John Muir Health's outstanding debt.