Health Care Service Corp. has completed its acquisition of The Cigna Group’s Medicare business, which significantly expanded HCSC’s footprint and boosted its Medicare enrollment.

The $3.7 billion purchase of Cigna’s Medicare Advantage, Cigna Supplemental Benefits, Medicare Part D and CareAllies businesses was announced more than a year ago. Divesting these assets “streamlines The Cigna Group’s portfolio and enables it to drive further innovation to support customers,” Cigna stated on March 19.

Cigna’s Medicare business covers more than 4.1 million lives across all states and Washington, D.C., according to the latest data from AIS’s Directory of Health Plans (DHP). Although the insurer’s total MA market share was small compared with other national competitors, it is the fourth-largest insurer in the stand-alone Medicare Part D Prescription Drug Plan (PDP) market, with over 2.9 million enrollees. With the purchase, HCSC now covers more than 5.1 million lives across the three Medicare product lines, according to DHP data.

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As the parent company of five Blue Cross Blue Shield insurers — serving Illinois, Montana, New Mexico, Oklahoma and Texas — HCSC is a significant player in these states, but its new acquisition gives it access to members in all states and Washington, D.C. With the addition of Cigna’s MA and Medicare PDP lives, HCSC now is the second-largest insurer in New Mexico and Texas, holding 21.8% and 18.4% of the state’s Medicare business, respectively, according to DHP data. In both Montana and Oklahoma, it ranks third with about 12.0% of the state’s market share.

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This infographic was reprinted from AIS Health’s weekly publication Health Plan Weekly.