Attorney Mark Heisey

Senior Associate

Mark Heisey


Walnut Creek

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Mark Heisey works with the Knox Ricksen team to represent clients in qui tam actions for insurance fraud and unfair business practices against healthcare providers, clinics, management services organizations, and their conspirators.

With nearly a decade of experience, Mark has managed cases in a variety of industries counseling clients in pre-litigation matters and representing them through all stages of litigation, including responding to discovery, analyzing liability and damages, negotiating settlement of claims, and trial advocacy. His prior matters have included personal injury defense, intentional torts, indemnity, professional negligence, malpractice, and contract litigation.

Mark is fluent in Spanish.

Bar and Court Admissions

  • California State Bar


  • Golden Gate University School of Law, J.D., 2014
    • Class Rank: Top 1% (2/211)
    • Executive Articles Editor, Golden Gate University Law Review, 2013-2014
  • University of California, Davis, B.A., 2007