OLDWICK, N.J.–(BUSINESS WIRE)– #insurance–AM Best has upgraded the Financial Strength Rating (FSR) to A+ (Superior) from A (Excellent) and the Long-Term Issuer Credit Rating (Long-Term ICR) to “aa-” (Superior) from “a+” (Excellent) of The Doctors Company, An Interinsurance Exchange (Napa, CA) and its core subsidiaries, which collectively comprise The Doctors Company Insurance Group (TDC or TDC Group). The outlook of these Credit Ratings (ratings) has been revised to stable from positive. See below for a l