OLDWICK, N.J.–(BUSINESS WIRE)–A.M. Best has affirmed the Financial Strength Rating (FSR) of A (Excellent) and the Long-Term Issuer Credit Ratings (Long-Term ICR) of “a+” of Health Care Service Corporation, a Mutual Legal Reserve Company (d/b/a Blue Cross Blue Shield of Illinois/Texas/New Mexico/Oklahoma/Montana) (HCSC) (headquartered in Chicago, IL) and its subsidiaries, HCSC Insurance Services Company (Chicago, IL) and GHS Health Maintenance Organization, Inc. (Tulsa, OK). Concurrently, A.M.
