Atty. Douglas H. Johnson

Atty. Douglas H. Johnson

Douglas H. Johnson practices at Kathleen T.

Warrenville Warrenville 35 yrs experience 35 year
Call (224) 452-6921 Book Appointment

Profile Summary

About Douglas H. Johnson at a glance

Douglas H. Johnson is a Partner based in Warrenville, Illinois, practicing at Kathleen T. Zellner & Associates. They have 35+ years of legal experience, licensed to practice since 1991. Their practice focuses on medical malpractice, slip & fall, litigation, civil rights, and appellate. Admitted to practice in Illinois (1991), U.S. District Court, Northern District of Illinois (1991), and U.S. Court of Appeals, Seventh Circuit (1993). Educated at Loyola University (J.D., 1991) and University of Michigan (B.S., 1986). Serands clients in Warrenville, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

Douglas H. Johnson practices at Kathleen T. Zellner & Associates Read Full Bio

Practice Areas Explained

Douglas H. Johnson's Areas of Practice

Each practice area below reflects the types of cases Douglas H. Johnson 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.

Douglas H. Johnson is one of 49,086 medical malpractice attorneys indexed nationally. Browse medical malpractice attorneys in Illinois →

Slip & Fall / Premises Liability

Douglas H. Johnson is one of 29,473 slip & fall attorneys indexed nationally. Browse slip & fall attorneys in Illinois →

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

Douglas H. Johnson is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Illinois →

Civil Rights

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

Douglas H. Johnson is one of 70,245 civil rights attorneys indexed nationally. Browse civil rights attorneys in Illinois →

Appellate Practice

Appellate attorneys for civil and criminal appeals at state and federal court.

Douglas H. Johnson is one of 86,319 appellate attorneys indexed nationally. Browse appellate attorneys in Illinois →

Jurisdictional Context

Why local counsel matters in Illinois

Practicing law in Illinois. Legal matters in Illinois are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Warrenville are typically filed in the local municipal court or the appropriate Illinois state district court, depending on subject matter and amount in controversy. An attorney licensed in Illinois 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 Illinois courts without local counsel or pro hac vice admission.

Looking for additional Illinois attorneys? Browse all attorneys in Warrenville or all attorneys in Illinois.

Frequently Asked

Common questions about Douglas H. Johnson

Where is Douglas H. Johnson's law office located?
Douglas H. Johnson's law practice is located in Warrenville, Illinois. The firm is Kathleen T. Zellner & Associates. You can contact the office directly through this profile page.
What practice areas does Douglas H. Johnson handle?
Douglas H. Johnson focuses on medical malpractice, slip & fall, litigation, civil rights, appellate. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has Douglas H. Johnson practiced law?
Douglas H. Johnson has 35+ years of legal experience and has been licensed since 1991.
Where did Douglas H. Johnson go to law school?
Douglas H. Johnson earned their education at (J.D., 1991); (B.S., 1986).
How can I contact Douglas H. Johnson for a consultation?
You can contact Douglas H. Johnson 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.

Education

J.D.
Loyola University
- 1991
B.S.
University of Michigan
- 1986

Bar Admissions

Illinois
Admitted: 1991
U.S. District Court, Northern District of Illinois
Admitted: 1991
U.S. Court of Appeals, Seventh Circuit
Admitted: 1993

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