Atty. Mark Stephen Eisen

Atty. Mark Stephen Eisen

Mr. Mark Stephen Eisen is a lawyer practicing healthcare, litigation, class action defense and 2 other areas of law.

Chicago Chicago 13 yrs experience 13 year
Call (312) 702-1485 Book Appointment

Class Action Defense & More Attorney · Serving Chicago, IL · 13+ Years Experience

Profile Summary

About Mark Stephen Eisen at a Glance

Mark Stephen Eisen is a class action, litigation, consumer, health care, and internet attorney based in Chicago, Illinois. They have 13+ years of legal experience, licensed to practice since 2013. Admitted to practice in California (2013), Illinois (2013), and North Carolina (2018). Educated at University of Southern California (B.A. Economics, 2008) and Boston University J.D. magna cum laude Boston University J.D. 2012 Notes Editor of the Boston University International Law Journal Boston University J.D. Winner of Moot Court Competition Bost (—). Serves clients in Chicago, IL and the surrounding metropolitan area.

Verified attorney profile · Updated October 2026

About Mark Stephen Eisen

  • Mr. Mark Stephen Eisen is a lawyer practicing healthcare, litigation, class action defense and 2 other areas of law
  • Mark received a B.A. degree from University of Southern California in 2008, and has been licensed for 13 years
  • Mark practices in Chicago, IL

Practice Areas Explained

Mark Stephen Eisen's Areas of Legal Practice

Each practice area below reflects the types of cases Mark Stephen Eisen handles, with a practical overview of what that area of law involves and how it may apply to your situation in Chicago.

Class Action in Chicago

Mark Stephen Eisen is one of 26,226 class action attorneys indexed nationally. Browse class action attorneys in Illinois →

Civil Litigation in Chicago

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

Mark Stephen Eisen is one of 450,751 litigation attorneys indexed nationally. Browse litigation attorneys in Illinois →

Consumer Protection in Chicago

Consumer protection attorneys for fraud, lemon law, debt harassment, and deceptive trade practices.

Mark Stephen Eisen is one of 50,226 consumer attorneys indexed nationally. Browse consumer attorneys in Illinois →

Health Care Law in Chicago

Health care attorneys for HIPAA, Medicare, Medicaid, regulatory compliance, and medical licensing matters.

Mark Stephen Eisen is one of 66,157 health care attorneys indexed nationally. Browse health care attorneys in Illinois →

Internet & Cyber Law in Chicago

Internet and cyber lawyers for data breaches, online defamation, privacy law, and cybersecurity matters.

Mark Stephen Eisen is one of 17,826 internet attorneys indexed nationally. Browse internet attorneys in Illinois →

Jurisdictional Context

Why Local Counsel Matters in Chicago

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 Chicago 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 venue, 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.

Chicago Courts and Legal Process

Choosing a Chicago-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.

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

Frequently Asked

Common Questions About Mark Stephen Eisen

Where is Mark Stephen Eisen's law office located?
Mark Stephen Eisen's law practice is located in Chicago, Illinois. You can contact the office directly through this profile page.
What practice areas does Mark Stephen Eisen handle?
Mark Stephen Eisen focuses on class action, litigation, consumer, health care, internet. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has Mark Stephen Eisen practiced law?
Mark Stephen Eisen has 13+ years of legal experience and has been licensed since 2013.
Where did Mark Stephen Eisen go to law school?
Mark Stephen Eisen earned their education at (B.A. Economics, 2008); (—).
How can I contact Mark Stephen Eisen for a consultation?
You can contact Mark Stephen Eisen 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.

Professional Profile

Why Clients in Chicago Choose Mark Stephen Eisen

Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Mark Stephen Eisen's practice in the field of class action, litigation, consumer, health care, and internet.

Decade-Tested Legal Experience

Mark Stephen Eisen brings 13+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.

Multi-State Bar Admission

Licensed in California, Illinois, and North Carolina, Mark Stephen Eisen can represent clients in cases that span state lines or require counsel in multiple jurisdictions.

Broad Practice Area Coverage

Covering class action, litigation, and consumer, Mark Stephen Eisen can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.

Local Presence in Chicago

A Chicago-based practice means Mark Stephen Eisen attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.

Search Reference

How People Find Mark Stephen Eisen Online

Prospective clients searching for legal help in Chicago commonly use a combination of the attorney's name and their specific legal need. The following search terms frequently lead people to this profile and to attorneys like Mark Stephen Eisen.

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If any of the above matches what you searched for, you've found the right profile. Use the contact options at the top of this page to get in touch with Mark Stephen Eisen directly.

Education & Law School Background

B.A. Economics
University of Southern California
- 2008
—
Boston University J.D. magna cum laude Boston University J.D. 2012 Notes Editor of the Boston University International Law Journal Boston University J.D. Winner of Moot Court Competition Bost
- In Progress

Bar Admissions & Licensed Jurisdictions

California
Admitted: 2013
Illinois
Admitted: 2013
North Carolina
Admitted: 2018

Client Reviews & Ratings — Mark Stephen Eisen

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