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. 2002 Fall;24(1):145–153.

Table 2. Prevalence of Group Enrollment in Medicare+Choice (M+C) Contracts, by Geographic Region: 2001 and 2002.

  • Prior to this data collection, CMS has not collected any information on group enrollment. Enrollment data has been collected at the contract level, but plan-level enrollment data has not been previously available.
  • Seventy-three percent of the active M+C contracts have some group enrollment.
  • The level of group enrollment varies considerably among these insurers, ranging from less than 1 percent to more than 90 percent.
  • In M+C plans that offer some group coverage, 20.4 percent of enrollees are enrolled through employer groups, compared with 20.6 percent in October 2001.
  • The average group penetration represents an unweighted average of the levels of group penetration in each region per contract. Group penetration remained constant from 2001 to 2002.
Geographic Region Insurers with Group Enrollment Level of Group Enrollment1 Average Group Penetration Per Contract1


2001 2002 2001 2002

Percent
All Regions 73.4 20.6 20.4 18.0 17.0
New England 100.0 19.5 17.8 24.9 19.8
Middle Atlantic 80.8 24.6 24.5 20.8 20.3
South Atlantic2 55.0 9.7 9.4 17.8 17.0
East South Central 87.5 8.7 8.9 9.1 9.2
West South Central 66.7 6.3 5.9 7.5 6.0
East North Central 78.9 14.9 13.1 20.5 18.7
West North Central 81.8 15.5 15.5 15.4 15.3
Mountain 73.3 14.3 14.1 11.5 11.0
Pacific3 88.2 34.1 34.2 24.0 23.8
Southern California 62.5 24.7 24.3 22.9 20.4
Miami 27.3 1.0 1.7 0.9 3.4
1

These calculations include only those contracts that offer group plans.

2

South Atlantic is exclusive of Miami.

3

Pacific is exclusive of southern California.

SOURCE: Centers for Medicare & Medicaid Services (CMS): Data from a survey of 144 Medicare+Choice insurers, 2002.