New York City, NY – Marcum LLP expanded its Midwest region by merging in The Abrix Group, L.P. of Northbrook, IL, on July 1.  Abrix was a business management and accounting firm focused exclusively on the healthcare industry. 


Abrix specialized in serving the complex organizational, business and financial needs of medical and dental practices, as well as the business and personal needs of individual practitioners. The firm’s services included tax, accounting, business development, regulatory issues, Medicare fraud and abuse, practice mergers, practice valuations, profit formulas, and retirement planning and administration.

The Abrix team adds four partners and 22 associates to Marcum’s Illinois regional offices.


“The Abrix team brings exceptional talent, expertise and experience to Marcum’s Chicago region and to our national healthcare industry group.  We are delighted to welcome them to Marcum,” said Jeffrey M. Weiner, chairman & chief executive officer.   


“Abrix’s unique expertise in the nuances of medical and dental practice management will be an additional asset to our healthcare clients regionally and nationally, as we continue to grow our presence in the Chicago area,” said Cary Buxbaum, Marcum’s regional managing partner in Illinois.  


“It is a tremendous opportunity for our firm to be able to bring the national resources of Marcum to our clients, while bringing a specialized focus on the practice side of the healthcare industry into their service mix,” said Thomas P. Frank, CPA, MBA, Abrix’s managing partner. 


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About Marcum

Marcum LLP is one of the largest independent public accounting and advisory services firms in the nation, with offices in major business markets throughout the U.S., as well as Grand Cayman, China, and Ireland. Headquartered in New York City, Marcum provides a full spectrum of traditional tax, accounting, and assurance services; advisory, valuation, and litigation support; managed accounting services; and an extensive portfolio of specialty and niche industry practices. The Firm serves both privately held and publicly traded companies, as well as nonprofit and social sector entities, high net worth individuals, private equity funds, and hedge funds, with a focus on middle-market companies and closely held family businesses.  Marcum is a member of the Marcum Group, an organization providing a comprehensive array of professional services. For more information, visit


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