Atty. Mark L. Thomsen

Atty. Mark L. Thomsen

When the Indiana steel mill department shutdown in 1984 where I had worked for nearly 8 years as a steelworker, including a stint as union representative, my family and I moved to Milwaukee. I started law school and after graduating in 1987, I served as a law clerk to the Hon.

Milwaukee Milwaukee 39 yrs experience 39 year
Call (414) 928-7756 Book Appointment

Profile Summary

About Mark L. Thomsen at a glance

Mark L. Thomsen is a medical malpractice, personal injury, and civil rights attorney based in Milwaukee, Wisconsin, practicing at Gingras, Thomsen & Wachs. They have 39+ years of legal experience, licensed to practice since 1987. Admitted to practice in Wisconsin, U.S. District Court for the Eastern District of Wisconsin, Wisconsin, U.S. District Court for the Western District of Wisconsin, Wisconsin, U.S. Court of Appeals, Fifth Circuit, and Wisconsin, U.S. Court of Appeals, Sixth Circuit. Educated at Marquette University (J.D., 1987) and Indiana University Northwest (—, 1984). Recognitions include Best Lawyers in America — Civil Rights Law (2026), Best Lawyers in America — Medical Malpractice Law - Plaintiffs (2026), and Best Lawyers in America — Personal Injury Litigation - Plaintiffs (2026). Serands clients in Milwaukee, WI and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • When the Indiana steel mill department shutdown in 1984 where I had worked for nearly 8 years as a steelworker, including a stint as union representative, my family and I moved to Milwaukee
  • I started law school and after graduating in 1987, I served as a law clerk to the Hon. John L. Coffey, circuit judge for the U.S
  • Court of Appeals for the Seventh Circuit
  • My time as a lawyer has now spanned 30 years, and my practice is primarily dedicated to representing and fighting for justice for injured people, including those injured by nursing home neglect, by medical and legal malpractice, in automobile and trucking collisions, by people’s general negligence, by defective products, and for violations of individual’s civil rights (§1983 claims)
  • During this time, whether by settlement or trial whenever necessary, I have successfully obtained millions over the years for those individuals and families I have been honored to represent

Practice Areas Explained

Mark L. Thomsen's Areas of Practice

Each practice area below reflects the types of cases Mark L. Thomsen handles, with a brief overview of what that area of law covers.

Medical Malpractice

Medical malpractice lawyers represent patients harmed by negligent doctors, hospitals, and other providers. Free case review, no fee unless you win.

Mark L. Thomsen is one of 49,086 medical malpractice attorneys indexed nationally. Browse medical malpractice attorneys in Wisconsin →

Personal Injury

Personal injury attorneys help accident victims recover compensation for medical bills, lost wages, and pain & suffering. Most work on contingency — no fee unless you win.

Mark L. Thomsen is one of 264,852 personal injury attorneys indexed nationally. Browse personal injury attorneys in Wisconsin →

Civil Rights

Civil rights attorneys for discrimination, police misconduct, constitutional rights, and civil liberties cases.

Mark L. Thomsen is one of 70,245 civil rights attorneys indexed nationally. Browse civil rights attorneys in Wisconsin →

Jurisdictional Context

Why local counsel matters in Wisconsin

Practicing law in Wisconsin. Legal matters in Wisconsin are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Milwaukee are typically filed in the local municipal court or the appropriate Wisconsin state district court, depending on subject matter and amount in controversy. An attorney licensed in Wisconsin brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Wisconsin courts without local counsel or pro hac vice admission.

Looking for additional Wisconsin attorneys? Browse all attorneys in Milwaukee or all attorneys in Wisconsin.

Frequently Asked

Common questions about Mark L. Thomsen

Where is Mark L. Thomsen's law office located?
Mark L. Thomsen's law practice is located in Milwaukee, Wisconsin. The firm is Gingras, Thomsen & Wachs. You can contact the office directly through this profile page.
What practice areas does Mark L. Thomsen handle?
Mark L. Thomsen focuses on medical malpractice, personal injury, civil rights. Each practice area listed reflects experience handling cases of that type in Wisconsin.
How long has Mark L. Thomsen practiced law?
Mark L. Thomsen has 39+ years of legal experience and has been licensed since 1987.
Where did Mark L. Thomsen go to law school?
Mark L. Thomsen earned their education at (J.D., 1987); (—, 1984); (—, 1976).
How can I contact Mark L. Thomsen for a consultation?
You can contact Mark L. Thomsen directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has Mark L. Thomsen received?
Mark L. Thomsen's notable recognition includes: Best Lawyers in America — Civil Rights Law; Best Lawyers in America — Medical Malpractice Law - Plaintiffs; Best Lawyers in America — Personal Injury Litigation - Plaintiffs; Best Lawyers in America — Additional Areas of Practice:; Best Lawyers in America — Personal Injury Litigation.

Education

J.D.
Marquette University
- 1987
Indiana University Northwest
- 1984
Luther College
- 1976
Loras College
- 1974

Awards

Best Lawyers in America — Civil Rights Law
- 2026
Best Lawyers in America — Medical Malpractice Law - Plaintiffs
- 2026
Best Lawyers in America — Personal Injury Litigation - Plaintiffs
- 2026
Best Lawyers in America — Additional Areas of Practice:
- 2026
Best Lawyers in America — Personal Injury Litigation
- 2026
Best Lawyers in America — Awards:
- 2026
Best Lawyers in America — Wisconsin Super Lawyers, 2005- present
- 2026
Best Lawyers in America — Martindale-Hubbell, AV rated
- 2026

Bar Admissions

Wisconsin, U.S. District Court for the Eastern District of Wisconsin
Wisconsin, U.S. District Court for the Western District of Wisconsin
Wisconsin, U.S. Court of Appeals, Fifth Circuit
Wisconsin, U.S. Court of Appeals, Sixth Circuit
Wisconsin, U.S. Court of Appeals, Seventh Circuit
Wisconsin, United States Supreme Court
Wisconsin, Wisconsin State Bar
Admitted: 1987

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