OLDWICK, N.J.–(BUSINESS WIRE)–A.M. Best has removed from under review with negative implications and affirmed the Financial Strength Rating (FSR) of A (Excellent) and the Long-Term Issuer Credit Rating (Long-Term ICR) of “a” of Preferred Physicians Medical Risk Retention Group, a Mutual Insurance Company (PPM RRG) (Kansas City, MO). The outlook assigned to these Credit Ratings (ratings) is negative. Concurrently, A.M. Best has affirmed the FSR of A (Excellent) and the Long-Term ICRs of “a” fo