For Immediate Release Chicago, IL – December 23, 2022 – Today, Zacks Equity Research discusses UnitedHealth Group Inc. UNH, Cigna Corp. CI, Humana Inc. HUM and Centene Corp. CNC. In an effort to bolster the Medicare customer base, the industry participants even operate senior-focused centers for delivering quality care services to the medically vulnerable population. A shortage of nurses and inflationary pressure continue to hamper the efficacies of HMO industry players.