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130 North Court Ave
Memphis TN 38103
Fax: 901.524.5024

Bar Admissions

American Bar Association

Tennessee Bar Association

Memphis Bar Association

Mary Petrinjak practices in the areas of regulatory healthcare, transactional healthcare and business and commercial law. In addition to advising clients on general business matters, her practice includes counseling providers and suppliers on a variety of healthcare matters including the application of fraud and abuse laws (such as Stark, the False Claims Act, the federal Anti-kickback statute and state self-referral laws), HIPAA compliance issues, Medicare and other third party payer audits and appeals, coding and billing issues, physician fee splitting and corporate practice of medicine issues. Ms. Petrinjak assists clients in establishing new businesses, setting up physician practices, structuring business relationships and negotiating contractual relationships with employees, independent contractors and third parties. Her practice also includes representing providers and suppliers in merger and acquisition transactions. Prior to joining the firm in 2012, Ms. Petrinjak practiced law in Jackson, Tennessee.


  • University of Dayton (J.D., 2001)
  • University of Dayton (B.A., Mathematics, 1995)

Professional Honors and Activities

  • Member, American Health Lawyers Association
  • Board Member, Health Law Section, Memphis Bar Association
  • Member, Health Law Section, Tennessee Bar Association
  • Treasurer, Jackson-Madison County Bar Association (2010- 2012)
  • Associate, Howell Edmunds Jackson Chapter, American Inns of Court (2010- 2011) 
  • Editor, EDICT, Tennessee Bar Association Young Lawyer Division Newsletter (2008) 
  • Board Member, Young Lawyer Division, Tennessee Bar Association (2008)
  • Board Member, Young Lawyer Division, Jackson-Madison County Bar Association (Treasurer, 2004-2005; Vice-President, 2006; President, 2007)
  • Recipient, CALI Award for Excellence in Secured Transactions
  • Recipient, Phillips-Karns Intellectual Property Law Scholarship
  • Student Supervisor, Volunteer Income Tax Assistance Program

Publications and Presentations of Note

  • Author, "Update on Internal Revenue Code Section 409A," Tennessee Society of Certified Public Accountants, Healthcare Conference (November 2008)