Zotec Partners LLC is buying Chattanooga, Tenn.-based Medical Management Professionals Inc., for $200 million.

Medical Management is a medical billing and practice-management company, and a subsidiary of CBIZ Inc. (Nasdaq: CBIZ).

Indianapolis-based Zotec provides revenue services to physicians.

The combined company will be able to become one of the largest revenue cycle management services firms in the U.S., and will provide services to the radiology, anesthesiology, pathology and emergency medicine groups, as well a physician practice management.

William Blair & Co. acted as Zotec’s financial adviser, while Falcon Capital Partners LLC provided CBIZ with financial advice.

There has been a wave of health care M&A lately fueled by the Affordable Care Act. For more, see "Healthy Investments."