About
Douglas R. Plymale is an attorney with Dugan Law Firm who handles mass tort pharmaceutical cases and other complex injury litigation. Plymale’s listed areas include Product Liability, Personal Injury, Pharmaceutical, Litigation, and Medical Device Litigation. His scientific background is central to his practice, particularly in cases where medical evidence, pharmacology, product design, causation, and technical expert testimony play major roles in evaluating claims and preparing litigation.
Plymale earned a J.D. from Tulane Law School and a Ph.D. from Tulane University in the Interdisciplinary Molecular and Cellular Biology Program. He also earned an M.B.A. and a B.S. in Biochemistry from New Mexico State University. Before practicing law, he worked as a scientist for a major pharmaceutical company and at Harvard Medical School, giving him technical experience that supports analysis of medically and scientifically complex cases.
Plymale has handled thousands of claims involving prescription drugs, pharmaceutical products, medical devices, toxic exposures, and other alleged product defects. His work has included cases concerning anticoagulants, diabetes drugs, hormone treatments, pelvic repair products, pacemakers, defibrillators, orthopedic implants, talcum powder, and other products. He began developing mass tort and personal injury experience while in law school and continued representing injured people after graduation.
Douglas R. Plymale is admitted in Louisiana and in numerous federal courts, including several U.S. Courts of Appeals and the U.S. Supreme Court. He participates in national and state legal associations and brings an unusual combination of scientific, business, and legal training to product cases. That background helps him work with experts, interpret technical evidence, and connect medical and scientific issues to the legal questions presented in mass tort litigation.
Law Office Affiliations
- Attorney, The Dugan Law Firm, APLC
- Member, Louisiana State Bar Association
- Member, American Association for Justice
- Member, Louisiana Association for Justice
- Member, American Bar Association
Licensed State
- Louisiana
Education
- Tulane Law School
Juris Doctor (JD) - Tulane University
Doctor of Philosophy (PhD) - New Mexico State University
Master of Business Administration (MBA) - New Mexico State University
Bachelor of Science (BS) in Biochemistry
Awards & Badges




- Class Action
- Lawsuits & Disputes
- Litigation
- Medical Devices & Dangerous Drugs
- Personal Injury
- Products Liability
- Wrongful Death




