The following hospital and health system credit rating and outlook changes and affirmations took place in the last week, beginning with the most recent.
1. Fitch affirms 'AA-' rating on Bryan Health's bonds
Fitch Ratings affirmed its "AA-" rating on Lincoln, Neb.-based Bryan Health's series 2008A, 2008B-1, 2008B-2 and 2008C revenue bonds, affecting a total of $78.5 million of debt.
2. Fitch assigns 'AA' rating to Children's Health System of Texas's bonds
Fitch Ratings assigned its "AA" rating to Dallas-based Children's Health System of Texas' proposed $327.66 million series 2017A revenue bonds and $25.32 million series 2017A taxable bonds.
3. Moody's affirms 'Aa3' on Yale New Haven Health
Moody's Investors Service affirmed its "Aa3" rating on Yale New Haven (Conn.) Health, affecting $1.1 billion of outstanding debt.
4. S&P assigns 'A' to Overlake Hospital Medical Center
S&P Global Ratings assigned its "A" rating to Bellevue, Wash.-based Overlake Hospital Medical Center's proposed $94.2 million series 2017A and $84.7 million series 2017B revenue bonds.
5. Moody's assigns 'A3' to Washington Regional Medical Center
Moody's Investors Service assigned its "A3" rating to Fayetteville, Ark.-based Washington Regional Medical Center's proposed $30.7 million series 2017 revenue bonds.
6. Moody's assigns 'Aa2' to Northwestern Memorial HealthCare
Moody's Investors Service assigned its "Aa2" rating to Chicago-based Northwestern Memorial HealthCare's proposed $525 million series 2017A and $162 million series 2017B bonds.
7. Moody's assigns 'Baa2' to Boston Medical Center's bonds
Moody's Investors Service assigned its "Baa2" rating to Boston Medical Center's proposed $50 million series 2017F and $100 million proposed taxable series 2017 bonds.
8. Fitch downgrades University of Maryland Medical System to 'A-'
Fitch Ratings downgraded Baltimore-based University of Maryland Medical System's outstanding bonds to "A-" from "A."
9. Fitch affirms 'A+' rating on Heritage Valley Health System
Fitch Ratings affirmed its "A+" rating on Beaver, Pa.-based Heritage Valley Health System's series 2012 revenue bonds, affecting $51.6 million of debt.
10. Fitch assigns 'A+' rating to Lexington Medical Center
Fitch Ratings assigned its "A+" rating to Lexington (S.C.) Medical Center's proposed $142.2 million series 2017A bonds.