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Pegnim & Ivancich LLP

Pegnim & Invancich LLP Offers Legal Representation in Workers' Compensation and Personal Injury Cases

What We Do

If you are unable to work due to a work related injury, you will need a lawyer who will help you obtain the compensation you deserve. Pegnim & Ivancich LLP has been practicing workers' compensation and personal injury law in Contra Costa since 1978. We also represent clients in family law matters, retirement cases and social security disability claims. Whether you have been injured in a car accident or need representation for a child custody case, we are here to help you.

Call Pegnim & Ivancich LLP at (877) 385-2487 for a free initial consultation.

Pegnim & Ivancich LLP is the largest workers' compensation firm in the county. We have represented hundreds of severely disabled clients. Many clients have obtained more than one million dollars in compensation for their injuries. We also aggressively represent clients with less severe injuries that occurred at work or on the road. We have over 20 years of experience in workers' compensation and personal injury law and we will fight to get the compensation you deserve. Call us at (877) 385-2487 today. Pegnim & Ivancich LLP: Aggressive. Reliable. Responsible.

Professional Associations, Awards and Certifications

  • Certified as a Specialist in Workers' Compensation by the California Board of Legal Specialization

Special Offers & Promotions

  • Free Initial Consultations

More About Us

  • Serving Contra Costa Since 1978
  • Largest Workers' Compensation Firm in the Area
  • Handle Cases on a Contingency Fee Basis
  • Won Settlements for Hundreds of Clients

Also serving Dublin, Antioch, Brentwood, Livermore and Pleasanton

Our Commitment

We will use our extensive knowledge and experience in this industry to help you obtain the maximum physical, medical and legal recovery possible.

Areas of Practice

  • Workers' Compensation
  • Personal Injury
  • Social Security Disability
  • Family Law

Thomas M. Pegnim is a principal in the Law Offices of Thomas M. Pegnim. He received his BA from Harvard and received his JD at Golden Gate University with highest honors. Thomas Pegnim has been a certified specialist in workers’ compensation for more than two decades. He serves as a Judge Pro Tem at the Oakland Workers’ Compensation Appeals Board and is a member of the Bench and Bar Committee of the Oakland Workers’ Compensation Appeals Board. Mr. Pegnim is on the Board of Directors of the CAAA and is the former president of NCAAA and a “Super Lawyer.” He is a frequent lecturer and speaker at conventions and education seminars. He currently specializes in representing injured workers before the Workers’ Compensation Appeal Board and practices personal injury, social security and disability retirement.

Lisa E. Ivancich is an attorney in Antioch, California with the Law Offices of Thomas M. Pegnim, where she practices workers’ compensation, family law and social security. Ms. Ivancich received her BA degree from the University of California at Los Angeles and her JD degree from Golden Gate University. She has worked with both insurance carriers and self-insured employers, in addition to representing injured workers. She currently serves as a Judge Pro Tem at the Oakland Workers’ Compensation Appeals.

Rodman J. Martin is an attorney with Pegnim & Ivancich LLP and practices workers’ compensation law. He graduated from Santa Clara University School of Law and received his undergraduate degree in Political Science from California Polytechnic State University San Luis Obispo. He is a member of the Contra Costa County Bar Association, the Alameda County Bar Association and the California Applicant Attorneys Association. Rodman also volunteers his time with a guardianship clinic through the Alameda Bar’s Volunteer Legal Services Corporation.

Justin C. Sonnicksen
has more than eight years of experience in workers’ compensation. He focuses primarily on representing clients that have sustained work-related injuries.

Athena Costis (of counsel) graduated from UC Davis in 1986 with High Honors and UC Davis Law School in 5/89. Ms. Costis initially worked in Sacramento for two firms that specialized in workers’ compensation, Ordas & Timmons and the Mastagni Law Firm, then moved to Oakland, CA and worked with the workers’ compensation firm, Leary & Miller for 10 years. She has been working with the Law Offices of Thomas Pegnim for more than five years.

Mike Nishiyama (of counsel) was born in Pasadena, California. He graduated from UCLA and then UC Hastings College of Law San Francisco. He was admitted to the California State Bar in 1977 and has been practicing law in Northern California ever since. Mike specializes in personal injury law and provides legal representation to some well-known entertainers.

Call Us

(877) 385-2487

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Business Hours

Monday 9:00AM - 5:00PM PST
Tuesday 9:00AM - 5:00PM PST
Wednesday 9:00AM - 5:00PM PST
Thursday 9:00AM - 5:00PM PST
Friday Closed
Saturday Closed
Sunday Closed