Mednax Inc. (NYSE: MD) has purchased Anesthesia Group of Onondaga PC, a physician group practice.

Anesthesia Group is headquartered in Syracuse, N.Y. Mednax will add the company to its American anesthesiology division. Terms of the deal were not disclosed.

The group has 20 anesthesiologists, 22 anesthetists and four administrative staff members. Anesthesia Group provides services to St. Joseph’s Hospital Health Center, Northeast Surgery Center and North Medical Surgery Center.

Sunrise, Fla.-based Mednax’s American anesthesiology division has more than 1,650 anesthesia providers in Florida, Georgia, Michigan, New Jersey, New York, North Carolina, Tennessee, Texas and Virginia. The company bought Anesthesia Specialists of Houston LLP in May.