Mednax Inc. (NYSE: MD) has acquired Memac Associates PC as it continues to build up an anesthesiology physician group.

Memac, headquartered in Warren, Michigan, provides anesthesiology services to St. John Macomb-Oakland Hospital, St. John Medical Center-Macomb Township ambulatory surgery center and two Eastside Endoscopy Center locations. The company's subsidiary, Synergy Anesthesia, provides anesthesiology services to Synergy Spine & Orthopedic Surgery Center. Mednax is also buying Synergy as part of the deal.

The deal adds 10 anesthesiologists and 18 part-time anesthetists to Mednax. Terms of the deal were not disclosed.

The Fort Lauderdale-based buyer has been scooping up anesthesiology and pediatric physician groups for the past few years. The company recently acquired a billing technology company called MedData Inc. Previous anesthesiology purchases have included Summit Anesthesia and Northern Westchester Anesthesia. 

For more on physician group consolidation, which is occurring as more patients flow into the U.S. health care system because of the Affordable Care Act, see ACA Reshuffles the Deck.