Preferred Health Network, a Long Beach, Calif.-based PPO subsidiary of Health Systems International, has purchased Midwest Business Medical Association of Wilmette, Ill., a PPO.
Terms of the deal were not disclosed.
MBMA's network includes more than 200 hospitals and 9,500 physicians in five Midwestern states serving 1 million enrollees. PHN's network now includes 3,300 facilities and 130,000 physicians and related providers serving nearly 5 million enrollees.
Woodland Hills, Calif.-based HSI serves more than 1.8 million HMO members in nine states.