A Pennsylvania-based medical center joined Highmark Blue Shield’s Medicare Advantage network.

Keystone Insurers Group announced its expansion into Tennessee next year, expanding past its current six states.

Empire BlueCross BlueShield, New York’s largest insurer by medical membership, “significantly expanded” its HMO and PPO/EPO and Indemnity Reference Laboratory networks, according to the company.

In a decision he hopes expands the numbers of doctors in health networks, Georgia’s insurance commissioner has sided with a physicians’ group over claims two local Blue Cross Blue Shield affiliates prohibited its participation.