James Gaughan O’Callahan

Girardi & Keese

As a partner at Girardi and Keese, James O’Callahan handles plaintiff civil litigation. He has tried product liability, bad faith, medical malpractice as well as personal injury cases. Mr. O’Callahan has over thirty jury trials, and has tried cases in both State and Federal Court.

Since 1995 Mr. O’Callahan has served as an arbitrator and mediator for the Los Angeles County court’s Alternate Dispute Panel. He has lectured at continuing legal education programs on product liability cases, pharmaceutical litigation, evidence, handling medical malpractice cases.

He has also been selected to participate in ABOTA’s “Masters in Trial” program.  He served as the California Liaison to the DePuy ASR MDL as well as on the Plaintiffs’ Steering Committee for the California DePuy ASR JCCP. He presently serves on the Plaintiffs’ Steering Committee for the Actos JCCP and previously served as Plaintiffs’ Liaison Counsel in the Vioxx JCCP.


Mr. O’Callahan obtained his undergraduate degree in American Studies graduating with honors. He was a Rotary Foundation Fellow at the University of Sussex.

Bar Admissions:

  • California, 1986
  • U.S. District Court Central District of California, 1987
  • U.S. District Court Eastern District of California, 1987
  • U.S. District Court Northern District of California, 1987
  • U.S. District Court Southern District of California, 1987

Professional Associations and Memberships:

  • American Board of Trial Advocates, Associate, 1996 – Present
  • CAOC, Member, 1987 – Present
  • Attorney Information Exchange Group
  • Eighth Street Lawyers Public Justice
  • Consumer Attorney of California
  • Association of Business Trial Lawyers
  • American Association of Justice
  • Los Angeles County Bar Association
  • American Bar Association
  • Public Justice Foundation
  • Consumer Attorneys Association of Los Angeles
  • Western Trial Lawyers


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What types of cases Attorney James Gaughan O'Callahan & Girardi & Keese can handle?
Girardi & Keese can handle cases related to laws concerning Personal Injury, Business, Intellectual Property, Product Liability. We manually verify each attorney’s practice areas before approving their profiles and reviews on our website.
Where is Girardi & Keese located?
Girardi & Keese is located at 1126 Wilshire Blvd, Los Angeles, CA 90017, USA. You can reach out to Girardi & Keese using their phone line 213-262-6777. You can also check their website girardikeese.com.
How much would it cost to hire Girardi & Keese?
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Girardi & Keese
1126 Wilshire Blvd, Los Angeles, CA 90017, USA
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