Background & Experience

Mark Cissell serves as Chief Executive Officer and President of KatzAbosch. With over 25 years of experience, he has extensive knowledge in auditing, accounting, and taxation and serves on both the Medical Practice Services Group and the Board of Directors. He joined the firm in 1985.


Western New England College, Bachelor of Science, Accounting

Areas of Specialization

Mark provides a full range of services for clients, including:

  • Management advisory services for closely-held businesses and nonprofit organizations
  • Auditing and SAS 70 engagements
  • Tax planning
  • General business advice and assistance to large medical groups

Professional Designations

  • Certified Public Accountant, 1984


  • Small Business Administration Accountant Champion of the Year, 2005
  • Smart CPA, Baltimore SmartCEO Magazine, 2005

Professional Affiliations and Civic Involvement

  • American Institute of Certified Public Accountants (AICPA)
  • Maryland Association of Certified Public Accountants (MACPA)
  • Howard County Chamber of Commerce, Board of Directors, Chair
  • Steven Daniel Jeffrey’s Foundation, Board of Directors
  • Howard County Arts Council, Past Treasurer of the Board of Directors
  • Howard County Leadership, Class of 1997
  • Howard County YMCA, Board of Directors
  • Medical Group Management Association, National and Maryland Affiliation