Judge Joan M. Lewis | Trellis: Legal Intelligence + Judicial Analytics

The Honorable Joan M. Lewis

San Diego County Superior Court, Department retired (website)

Court Info

San Diego County Superior Court, Department retired (website)


The Hon. Joan M. Lewis (Ret.) served as a judge for the Superior Court of San Diego County in California. She was appointed to the bench by former governor Pete Wilson in 1998. She retired twenty years later on December 28, 2018.

Lewis earned a B.S. in microbiology from Arizona State University in 1980. She then received a J.D. from the California Western School of Law in 1987.

After graduating from law school, Lewis joined the law firm of Ault, Midlam, and Deuprey as an associate. Three years later, she moved to Lewis, D’Amato, Brisbois, and Bisgaard, where she represented health care professionals in medical malpractice cases. During her eight-year tenure there, she eventually advanced to partner, a position she held at the time of her appointment to the bench.

While serving on the Superior Court of San Diego County, Lewis presided over the Family Law Division. She also served as an assistant supervising judge for the Civil Independent Calendar.

Lewis began working as a neutral for Judicate West Alternative Dispute Resolution after her retirement from the bench.

Lewis is a recipient of the Friend of the Community Award from the Tom Homann LGBT Law Association. She has also received the Bernard E. Witkin, Esq. Award from the San Diego Law Library Foundation.

Her memberships have included the Wallace Inns of Court, the California Judges Association, and the San Diego Superior Court Executive Committee. She has served on the Judicial Advisory Board for the Association of Business Trial Lawyers as well as the Executive Committee of the California Judges Foundation.

She was born and raised in New York. In her spare time, she enjoys going to the theatre, traveling, playing tennis, and participating in physical fitness activities.


J.D. from California Western School of Law (1987)

B.S. from Arizona State University (1980) (Microbiology)


Judge at Superior Court of California in San Diego County, California (1998 to 2018)

Partner at Lewis, D'Amato, Brisbois, and Bisgaard (until 1998)

Associate at Lewis, D'Amato, Brisbois, and Bisgaard (from 1990)

Associate at Ault, Midlam, and Deuprey in San Diego County, California (1987 to 1990)

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