In 1992 it offered an HMO plan along with the rise of managed care in the 1990s .
BCBSMA formed in 1988 after the merger of Blue Cross and Blue Shield of Massachusetts .
In 1992 BCBSMA offered an HMO plan along with the rise of managed care in the 1990s .
BCBSMA formed in 1988 after the merger of Blue Cross and Blue Shield of Massachusetts .