Here's how these seven Fortune 500 health insurance companies ranked according to membership in the first quarter of 2021:

Anthem's IngenioRx was established in 2017. Here are five things to know about the pharmacy benefits manager:

The Blue Cross Blue Shield Association and UnitedHealth Group settled a trademark dispute that concerned an acronym used by both organizations, according to court documents.

Humana will continue to provide Medicare coverage to West Virginia's 54,000 retirees under a new four-year contract with the state's Public Employees Insurance Agency effective Jan. 1, 2022, according to a June 15 news release.

Richard Migliori, MD, executive vice president of medical affairs and chief medical officer at UnitedHealth Group, and Margaret-Mary Wilson MD, executive vice president and associate chief medical officer at UnitedHealth, outlined several long-term care strategies during a June 16 call.

Brain cancer drug Gleostine is no longer available for coverage under Medicare Part D after its seller, Miami-based NextSource Biotechnology, removed it from the program, according to The Wall Street Journal.

Through its multiple acquisitions, Humana is building a home-healthcare empire. Here are numbers to know:

Blue Cross and Blue Shield of Minnesota announced it has hired former U.S. Bank executive Matt Hunt to be the organization's first chief experience officer.

Pennsylvania Attorney General Josh Shapiro charged four Philadelphia business owners June 14 in connection to a $10 million Medicaid scam, according to The Philadelphia Inquirer.

Point32Health is the name of a new health insurance organization formed by the merger of Tufts Health Plan and Harvard Pilgrim Health Care. 

UnitedHealthcare operates more than 1,500 accountable care agreements with providers, according to data in UnitedHealth Group's 2021 sustainability report. 

Treating common conditions, including bronchitis and the flu, in primary care settings instead of emergency rooms could save health systems up to $320 billion over the next 10 years, according to UnitedHealth Group's 2020 Sustainability Report.

Civica Rx named the unit that will be tasked with lowering the cost of certain generic medicines, and said one of the nation's largest health insurers — Anthem — will join it.

Florida's largest autism services provider filed a complaint against the state's Medicaid program, alleging the new electronic visit-verification system being tested across eight counties is failing.

Medicare Advantage company Alignment Healthcare announced it will expand coverage to an additional 12 North Carolina counties in 2022, pending CMS' approval.

Medicare beneficiaries are being targeted by scammers offering free genetic testing in exchange for sensitive information, according to the Better Business Bureau June 11.

UnitedHealth Group is one of the largest healthcare companies in the U.S., and is continuing to grow its clinical and administrative teams. 

Former Cigna executive Patrick Foley launched Belong Health, a Medicare Advantage company with a specific focus on special needs populations, according to a June 14 news release.

UnitedHealthcare and Atlanta-based health system Northside have yet to reach a contract renewal agreement after two of the health system's hospitals dropped out of network with the payer three months ago. The current contract between UnitedHealthcare and the remaining Northside hospitals will expire Aug. 1, according to Georgia Health News. 

Blue Cross and Blue Shield of Michigan and Blue Care Network will offer an individual health plan option for young adults under 30 during the 2022 marketplace enrollment period later this year.