United Health Group is covered in "What Happens When Your Insurer Is Also Your Doctor and Your Pharmacist" - https://www.wsj.com/health/healthcare/what-happens-

United Health Group is covered in "What Happens When Your Insurer Is Also Your Doctor and Your Pharmacist" - https://www.wsj.com/health/healthcare/what-happens-when-your-insurer-is-also-your-doctor-and-your-pharmacist-8df727af https://www.wsj.com/health/healthcare/what-happens-when-your... There's also https://en.wikipedia.org/wiki/Centene_Corporation https://en.wikipedia.org/wiki/Centene_Corporation You mentioned Kaiser Permanente who acquired Geisinger Health System's network of hospitals: https://en.wikipedia.org/wiki/Kaiser_Permanente https://en.wikipedia.org/wiki/Kaiser_Permanente See also: https://pahealthaccess.org/promises-made-promises-broken-what-really-happens-when-local-hospitals-are-acquired/ https://pahealthaccess.org/promises-made-promises-broken-wha... https://www.kff.org/health-costs/issue-brief/ten-things-to-know-about-consolidation-in-health-care-provider-markets/ https://www.kff.org/health-costs/issue-brief/ten-things-to-k...