Quiet giant. Among managed-care plans, Cigna HealthCare is the biggest and most-often overlooked.
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D003237:Connecticut; D019468:Disease Management; D004465:Economic Competition; D005069:Evaluation Studies as Topic; D006279:Health Maintenance Organizations / Q000191:economics / Q000458:organization & administration* / Q000592:standards / Q000706:statistics & numerical data; D007256:Information Systems; D007343:Insurance Carriers; D007449:Investments; D007857:Leadership; D015143:Philadelphia; D008486:Physician Executives; D011787:Quality of Health Care; D014481:United States