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Patrick M. Callahan

Sr. Counsel

Direct Dial (510) 835-6802

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  • Seton Hall University Law School (J.D., 1984)
  • Rider College (M.A. in Administration, 1980)
  • Rider College (B.A., summa cum laude, 1978)

Bar Admissions

  • California
  • New Jersey

Patrick M. Callahan

Practice Experience

  • Practice emphasizes litigation in the areas of healthcare, pharmacy malpractice, loss prevention, public entity, civil rights, premises liability,  commercial and products liability
  • More than 30 years' experience representing lawyers, doctors, nurses, and other professionals accused of professional negligence
  • Strong background representing corporations and small business owners in products liability, sexual harassment, gender and race discrimination, and commercial litigation


  • Substantial trial experience, having conducted more than 40 trials as lead attorney
  • Extensive experience resolving cases through mediation and arbitration

Professional Associations

  • Member of the New Jersey State Bar Association, California State Bar Association and the Alameda County Bar Association
  • President of the Board of Directors of Community Violence Solutions and Rape Crisis Center of Marin and Contra Costa Counties
  • Served on the board of the Friends of the Creeks of Contra Costa County and volunteered at the Contra Costa Crisis Center
  • Former President of the Board of Directors of Community Violence Solutions and Rape Crisis Center of  Marin and Contra Costa Counties
  • AV Rating by Martindale-Hubbell, 2001-Present

Special Recognition

  • Fellow of the American Bar Foundation; AV Rating by Martindale-Hubbell,2001; Who's Who in America, 54th Edition, 2000; Seton Hall Law School Moot Court Board-Member/Director, 1982-1984; Recipient of the Oscar W. Rittenhouse Memorial Scholarship, 1981; Andrew J. Rider Scholar, 1976; and Member, Alpha Sigma Lambda National Honor Society