Mark’s experience includes providing accounting, tax planning, consulting and administration services to independent health care providers throughout Wisconsin and Upper Michigan. He has experience with managing practices on a part-time basis, reviewing and making recommendations for internal controls, and conducting operational assessments of business/billing office processes and procedures.

Mark has developed and made recommendations for physicians’ compensation formulas, and has also assisted clients with Stark issues, third-party insurance contracting, financial projections, financial reporting, budgeting, cost reduction, and compliance. In addition, he has conducted feasibility studies regarding imaging entities and ambulatory surgical centers (ASCs).

Mark has been with Schenck since 1991.


  • Discovered provider documentation issues in an specialty practice; educated the providers in coding and documentation, resulting in additional revenue of approximately $150,000 per provider
  • Initiated revenue cycle procedures to shorten average collection time for a primary care practice from 115 days to 45 days
  • Reviewed a well-established dental practice’s fee schedule and billing procedures and increased top line revenue 40% without increasing patient population
  • Facilitated real estate tax assessment reductions for several medical office buildings and saved one client more than $40,000 a year in property taxes
  • Served as interim director of a new orthopedic facility which included a startup Ambulatory Surgery Center (ASC)
  • Led the successful integration of two medical practices with diverse cultures


University of Wisconsin–Oshkosh, BBA, Accounting, BBA, Finance

Professional memberships

  • Wisconsin Institute of Certified Public Accountants
  • American Institute of Certified Public Accountants
  • Medical Group Management Association
  • National CPA Health Care Advisors Association

Community involvement

  • Junior Achievement, Volunteer
  • Quarry Quest, Finance Committee
Mark DeBroux's Recent Articles View all

Chip Card Compliance Should be on Your Practice's Radar

The familiar swiping of the credit card may soon be a thing of the past. Credit card technology is changing, with enhanced security resulting in better protection for all of us. This change doesn’t just affect consumers, though. Dental practices must be in compliance when patients come with new chip and PIN cards. Find out what you need to know to be ready for the transition.

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The Affordable Care Act Now Impacts All Practicing Dentists

Some of the provisions of the Affordable Care Act affect dentists who have patients that are 65 years of age and older. This means every dentist is impacted and should be taking some kind of action. This information particularly pertains.

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“Schenck has provided invaluable service and advice to me, to Johnsonville Sausage, and to the entire Stayer family for the past 11 years. I have found the Schenck team to be extremely proactive in strategy and their client service is second to none. They are more than an accounting firm; they are true partners in our success.” - Ralph Stayer, CEO, Johnsonville Sausage, LLC
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