The Colleran Firm

The Colleran Firm

The Colleran Firm is a team of five experienced trial attorneys helping victims of catastrophic injuries due to negligence across Pennsylvania and New Jersey.

Firm Overview

The Colleran Firm is a team of five experienced and compassionate lawyers. The Firm was started by James Colleran, and he was quickly joined by his sons Francis and David, daughter Teresa and attorney Denine Moscariello.
There are many avantages to choosing The Colleran Firm.

  1. We have been practicing medical malpractice law since it began gaining popularity in the 1960s

  2. You will have a team of experienced trial lawyers on your side

  3. We have many multi-million dollar verdicts to advocate for us

  4. We are a family and understand the strain that a catastrophic injury places on the entire family.

  5. We work on a contingency fee basis, meaning you pay no fees until we win your case, and if we don't win, you don't pay. So you can focus on getting better while we focus on your case.

Main Office
The Colleran Firm
2005 Market Street
Philadelphia  PA  19103
  • 215-972-8000


Free Initial Consultation?
Services Offered For Fixed Fees?
We operate on a contingency basis, meaning that you pay nothing until we win your case. We have confidence in ourselves and the cases we take on and if we do not win your case, you will not owe us anything.

Office Information

Office Hours
9-5 M-F, after hours appointments available
Emergency After Hours
Languages Spoken

How did your firm decide on the primary area of practice(s)?

The firm's founder James Colleran was on the forefront of medical malpractice law in Pennsylvania and has watched it evolve over time.

What distinguishes your law firm from others?

The lawyers at The Colleran firm are not afraid to go to trial for their clients. Many lawyers would prefer to reach a settlement with insurance companys and other parties, which is sometimes necrssary. However, at The Colleran Firm, we will fight to get you the compensation that you deserve for your injuries.

James Colleran

James Colleran Sr. has been practicing law since the 1960s after receiving his JD from Villanova School of Law in 1968. In 1995, James founded The Colleran Firm with a focus on personal injury, in particular the area of medical malpractice. Since founding the firm, James' two sons and one daughter have followed their father's legacy and the firm is now known as a powerhouse of litigators.
James has won many multi-million dollar verdicts for his clients and has received numerous awards. He has been recognized as a Pennsylvania Super Lawyer every year from 2004-2016 and named one of the Top 10 Lawyers in Pennsylvania in 2004.
As a result of his acheivments, Mr. COlleran has been a faculty member and guest lecturer at many Continuing Legal Education courses and seminars. He has also made many television appearances to discuss medical malpractice and personal injury issues.
  • Bar Number: 09367
    Pennsylvania , 1968
  • Villanova University School of Law
    J.D. , 1968

David Colleran

David Colleran is one of Philadelphia's top trial lawyers, he has won multi-million dollar verdicts for his clients who were injured due to negligence or medical malpractice. David started practicing law at The Colleran Firm in 2000 after graduating from Villanova University School of Law.
David has won cases in some of the toughest counties in Pennsylvania and New Jersey including Wayne county, Lancaster county, Berks county, Delaware county, Montgomery county, Philadelphia county,Camden county and more. He has also excelled at cases in ederal venues including Eastern District of Pennsylvania and the Middle District of Pennsylvania, where many lawyers won't go due to the historically defense-oriented communities.
David has been featured as a Super Lawyers rising star multiple times and even appeared on the Rising Star publication cover in 2007.
  • Bar Number: 83916
    Pennsylvania , 1999
  • Villanova University School of Law
    J.D. , 1999

Francis Colleran

Francis T. Colleran, Esq. focuses his practice incatastrophic injury litigation with a focus on professional malpractice, products liability, and serious personal injury cases. Mr. Colleran graduated cum laude from Duke University in 1989 and obtained his law degree from Villanova University in 1992. Frank is licensed to practice in both Pennsylvania and New Jersey. Since beginning his practice in 1992, Mr. Colleran has obtained manymulti-million dollar verdicts and settlements on behalf of clients with serious injuries. Many of these verdicts have been secured in Pennsylvania's most difficult venues, including a $2 million Montgomery County award for delayed diagnosis of colon cancer.
Mr. Colleran is one of the most experienced trial lawyers in Pennsylvania. He has presented numerous lectures on the subjects of medical malpractice, trial litigation, cross- examination, closing arguments, jury selection and deposition skills. He is also a member of the Pennsylvania Trial Lawyers Association, The American Association of Justice and is admitted to practice in both Federal and State Court systems.
  • Bar Number: 65821
    Pennsylvania , 1992
  • Duke University
    B.A. Political Science , 1989
    Cum Laude
  • Villanova University School of Law
    J.D. , 1992

Denine Moscariello

Denine Marie Moscariello, Esquire, concentrates her practice of law onplaintiff medical malpractice andpersonal injury matters.
Ms. Moscariello has worked within various areas of the legal field as a legal assistant and as a member of judicial staffs in the Civil Trial and Domestic Relations Divisions of the Philadelphia Court of Common Pleas.
Ms. Moscariello is licensed to practice law in Pennsylvania, New Jersey and New York as well as the United States District Court for the Eastern District of Pennsylvania. Ms. Moscariello maintains professional memberships in the American, Pennsylvania, Philadelphia and New York Bar Associations and the Philadelphia Trial Lawyers Association.
  • Bar Number: 90192
    Pennsylvania , 2002
  • Bar Number: 019142002
    New Jersey , 2002
  • Bar Number: 4205993
    New York , 2004
  • St. Joseph's University
    B.A. Political Science , 1998
  • Widener University School of Law
    J.D. , 2002

Teresa Colleran-Quinn

Teresa Colleran Quinn, Esquire concentrates her practice on representing plaintiffs inpersonal injury litigation in NJ and PA, includingmedical malpractice, automobile, product liability andother negligence cases.
After graduating from law school, Ms. Colleran was a federal law clerk for the Honorable John P. Fullam of the United States District Court for the Eastern District of Philadelphia, before beginning practice with her family at The Colleran Firm when they first opened their doors in 1995.
Ms. Colleran holds licenses to practice law in both the Commonwealth of Pennsylvania and the State of New Jersey, and has been admitted to practice in the United States District Court for the Eastern District of Pennsylvania. She is a member of the Pennsylvania and American Bar Associations as well as Pennsylvania Association for Justice and the Philadelphia and Trial Lawyers Association.
  • Bar Number: 69048
    Pennsylvania , 1993
  • Bar Number: 016731993
    New Jersey , 1993
  • Duke University
    B.A. Political Science , 1990
  • Villanova University School of Law
    J.D. , 1993