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McDonald Taryn

Taryn McDonald

Taryn focuses her practice on government investigations and healthcare litigation, representing individuals and companies facing actual or threatened government enforcement actions. She has represented clients under criminal or civil investigation by various government agencies, including the U.S. Department of Justice, the Office of Inspector General, the Texas Attorney General’s Office, the Securities and Exchange Commission, and FINRA. Taryn has extensive experience defending clients in qui tam and False Claims Act investigations and lawsuits and regularly provides counsel on regulatory issues, including compliance with the Anti-Kickback Statute and the Stark Law, and anti-bribery and anti-corruption laws. Taryn also helps her clients investigate and navigate sensitive internal compliance issues and advises them regarding their disclosure obligations.

Taryn is actively involved in the firm and in the community. She is a member of the Dallas Bar Association and the DFW Chapter of Women in White Collar Defense. She is also a member of the Cattle Baron’s Ball Committee which raises funds for the American Cancer Society. Prior to attending law school, Taryn worked for both the Texas House of Representatives and the Texas Office of the Attorney General.

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Selected Client Representations
  • Represented an oil and gas services company in connection with a criminal investigation of alleged FCPA violations.
  • Conducted comprehensive evaluation of anti-bribery and anti-corruption compliance program for publicly traded company.
  • Represented registered broker dealer in investigation related to alleged violations of Section 17(a) of the Securities Act and Section 10(b) of the Exchange Act and Rule 10b-5.
  • Represented former public company executive in a parallel criminal/civil investigation by the DOJ and the SEC related to loans received under the government’s paycheck protection program.
  • Counseled publicly traded companies regarding disclosure obligations surrounding government investigations and litigation.
  • Represented a clinical laboratory in False Claims Act qui tam in the Northern District of Texas alleging violations of the Anti-Kickback Statute related to pharmacogenetic testing. See United States ex rels. Choate and Pyburn v. DNA Stat et al. (N.D. Tex.).
  • Represented national hospice provider in False Claims Act qui tam in the Northern District of Texas alleging violations of the Stark Law and Anti-Kickback Statute. See United States ex rel. Capshaw v. White (N.D. Tex.).
  • Represented national healthcare provider in False Claims Act qui tam alleging violations of the Stark Law and Anti-Kickback Statute related to employed physician compensation arrangements and improper coding of evaluation and management procedures.
  • Represented pathology laboratories in False Claims Act qui tam alleging improper billing and violations of the Anti-Kickback Statute.
  • Advised public company regarding self-disclosure of potential FCPA violation.
Awards and Recognition
  • Recognized by Texas Super Lawyers Rising Stars, Thomson Reuters, 2021-2022
  • Included in the "Ones to Watch" category of Best Lawyers in America, Woodward/White, Inc., 2021-2022
  • Recognized in D Magazine's "Best Lawyers in Dallas," D Magazine Partners, 2018
Publications and Speaking Engagements
  • “Mitigating False Claims Act Liability Risks for Healthcare Recipients of COVID-19 Funding,” speaker, Strafford CLE webinar, March 24, 2021.
  • “False Claims Act 2020 Year in Review,” speaker, Dallas Bar Association Health Law Section, January 20, 2021.
  • “The Risk of False Claims Act Liability for Recipients of COVID-19 Funding,” co-presenter, Practising Law Institute 1-Hour Program


J.D., Southern Methodist University Dedman School of Law, 2013, summa cum laude; Order of the Coif; SMU Law Review Association

B.A., Government, University of Texas at Austin, 2007, with honors

B.S., Communication Studies, University of Texas at Austin, 2007, with honors



Court Admissions

U.S. District Court for the Northern District of Texas

Press Release
Haynes Boone Lawyers in 2022 Super Lawyers Rising Stars Directory
March 22, 2022

Texas Super Lawyers Rising Stars has included 23 Haynes and Boone, LLP lawyers in its 2022 directory.   Published by Thomson Reuters, the Texas Rising Stars directory includes only 2 percent of young lawyers in Texas, selected through peer nominations and research. To be eligible, lawyers must be 40 or younger or practicing less than 10 years.   The following Haynes Boone lawyers are featured as 2 [...]


False Claims Act - 2021 Year in Review

February 07, 2022

SEC Enforcement Highlights 2021

December 07, 2021