Atty. Mark Ari Treitel

Atty. Mark Ari Treitel

Mark Ari Treitel is a lawyer practicing contracts, health law, general practice and 2 other areas of law. Mark received a degree from Benjamin N Cardozo School of Law Yeshiva University, NY, and has been licensed for 34 years.

Los Angeles Los Angeles 34 yrs experience 34 year
Call (866) 620-4709 Book Appointment

Profile Summary

About Mark Ari Treitel at a glance

Mark Ari Treitel is an Attorney based in Los Angeles, California, practicing at Quinn Emanuel Urquhart And Sullivan Llp. They have 34+ years of legal experience, licensed to practice since 1992. Their practice focuses on contracts, ip, health care, and internet. Admitted to practice in Second Department (1992), New York (1995), and California (1998). Educated at Benjamin N. Cardozo School of Law (J.D., 1994) and Benjamin N Cardozo School of Law Yeshiva University, NY Tufts University, Medford MA (—). Serands clients in Los Angeles, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mark Ari Treitel is a lawyer practicing contracts, health law, general practice and 2 other areas of law
  • Mark received a degree from Benjamin N Cardozo School of Law Yeshiva University, NY, and has been licensed for 34 years
  • Mark practices at Quinn Emanuel Urquhart & Sullivan, LLP in Los Angeles, CA

Practice Areas Explained

Mark Ari Treitel's Areas of Practice

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

Contracts

Mark Ari Treitel is one of 76,762 contracts attorneys indexed nationally. Browse contracts attorneys in California →

Intellectual Property

IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.

Mark Ari Treitel is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in California →

Health Care Law

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

Mark Ari Treitel is one of 66,735 health care attorneys indexed nationally. Browse health care attorneys in California →

Internet & Cyber Law

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

Mark Ari Treitel is one of 17,958 internet attorneys indexed nationally. Browse internet attorneys in California →

Jurisdictional Context

Why local counsel matters in California

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

Looking for additional California attorneys? Browse all attorneys in Los Angeles or all attorneys in California.

Frequently Asked

Common questions about Mark Ari Treitel

Where is Mark Ari Treitel's law office located?
Mark Ari Treitel's law practice is located in Los Angeles, California. The firm is Quinn Emanuel Urquhart And Sullivan Llp. You can contact the office directly through this profile page.
What practice areas does Mark Ari Treitel handle?
Mark Ari Treitel focuses on contracts, ip, health care, internet. Each practice area listed reflects experience handling cases of that type in California.
How long has Mark Ari Treitel practiced law?
Mark Ari Treitel has 34+ years of legal experience and has been licensed since 1992.
Where did Mark Ari Treitel go to law school?
Mark Ari Treitel earned their education at (J.D., 1994); (—).
How can I contact Mark Ari Treitel for a consultation?
You can contact Mark Ari Treitel 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.
Benjamin N. Cardozo School of Law
- 1994
Benjamin N Cardozo School of Law Yeshiva University, NY Tufts University, Medford MA
- In Progress

Bar Admissions

Second Department
Admitted: 1992
New York
Admitted: 1995
California
Admitted: 1998

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