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Ivancich & Costis, LLP

Ivancich & Costis, LLP - Antioch, CA

Workers' Compensation Lawyers in Antioch, CA

3440 Hillcrest Ave Suite 200 Antioch, CA 94531

  • Free Consultation
  • 1 Super Lawyers®
  • 33 Years 
    Experience

Antioch Workers' Compensation Law Firm

Updated: 02/28/2026

Areas of Practice

  • Workers' Compensation 90%
  • Social Security - Disability 5%
  • Personal Injury 5%

Litigation: 100%

Firm Information

Overview

Ivancich & Costis, LLP is the local and experienced workers' compensation law firm serving Contra Costa County and the Tri-Valley. Their team of seven lawyers handles workers' compensation, personal injury, social security disability, and disability retirement cases. With offices in Antioch and Dublin, CA it is easy and convenient to schedule a free consultation at either location. All three partners are certified workers' compensation specialist and two have been recognized by Super Lawyers.


Awards and Honors

Super Lawyers® Selectees

SuperLawyers

Ivancich & Costis, LLP selected for a Super Lawyers® list


Languages

  • English
  • Spanish
  • Cantonese Chinese

Previous Law Firm Names

  • Pegnim & Ivancich, LLP

Pro Bono Activities

  • Asian Law Caucus, 2011 - Present
  • Judge Pro Tem, 2010 - Present

Representative Cases

  • Acme Steel v. WCAB (Borman) CA1/1, A137915 (Cal. Ct. App. 2013)

Ancillary Businesses

  • Mediation
  • Disability Retirement

Reviews

Customer Reviews for Ivancich & Costis, LLP

4.7 out of 5
3 Reviews
Learn more about our review guidelines.
3 Reviews
  • 5
    67%
  • 4
    33%
  • 3
    0%
  • 2
    0%
  • 1
    0%
  • By Douglas W. on Nov. 12, 2025
    Hired Law firm 2019-2025
    Recommends this Law firm
    If you are looking for a lawyer with a great team. Then Lisa (Super Lawyer), Valerie, Jayme are your first and last stop for your workman's compensation needs. They are professional to the point honest and prompt. They put me at ease with my case. Kept me informed and up to date..
  • By Anonymous on Aug. 06, 2025
    Hired Law firm 2021-2025
    Recommends this Law firm
    Ivancich & Costis, LLP - Antioch Did an excellent job handling my case! I am completely satisfied with my outcome! The ladies worked hard . I Will definitely recommend them to get great results!! Thanks again
  • By Jonathan Y. on Jun. 06, 2025
    Hired Law firm 2021-2024
    The ladies at Ivancich and Costas we're very diligent in handling my case.

Attorneys

Athena R. Costis

Partner Attorney

View Profile

H. Mal Cameron

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Lisa E. Ivancich

Managing Partner, Attorney

Super Lawyers®
View Profile

Staff

  • Kathy Empringhan, Office Manager and Calendar Coordinator
  • Terri Sameon, Med-Legal Coordinator
  • Cheryl Gessini, Benefits Coordinator
  • Jayme Ambrosilli, Senior Legal Assistant
  • Eni Guitron, Senior Legal Assistant
  • Hecther Youngquist, Legal Assistant

Athena R. Costis

Partner Attorney

View Profile

H. Mal Cameron

View Profile

Lisa E. Ivancich

Managing Partner, Attorney

Super Lawyers®
View Profile

Staff

  • Kathy Empringhan, Office Manager and Calendar Coordinator
  • Terri Sameon, Med-Legal Coordinator
  • Cheryl Gessini, Benefits Coordinator
  • Jayme Ambrosilli, Senior Legal Assistant
  • Eni Guitron, Senior Legal Assistant
  • Hecther Youngquist, Legal Assistant

Contact

Google Map

Antioch, CA

3440 Hillcrest Ave
Suite 200
Antioch, CA 94531

Directions

Phone: 866-432-2133

Fax: 925-776-4509

Email: Send a message

Hours: Monday through Thursday : 9:00am-5:00pm

  • Credit Cards Accepted
  • Free Consultations

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