Staff Contact Information

If you are an attorney or a client already working with an attorney please use the staff emails and contact information below. Otherwise call the firm at 866-432-2133 or click here and we will respond promptly.

Lisa Ivancich
Partner Attorney
[email protected]

Athena Costis
Partner Attorney
[email protected]

Jayme Ambroselli
Legal Assistant to Athena Costis and Lisa Ivancich
[email protected]

Denny Chun
Associate Attorney
[email protected]

Eni Guitron
Legal Assistant to Denny Chun
[email protected]

Cheryl Gessini
Authorizations, Benefits and Reimbursement
[email protected]

Terri Sameron
Medical/Legal Appointment Coordinator
[email protected]

Work With The Firm That Gets Results

Ivancich & Costis, LLP in Antioch, California is the largest workers' compensation law firm in Contra Costa County. We are confident in our ability to help you because we have the experienced lawyers, knowledgeable staff and financial resources to fully investigate the circumstances of your case. We also have the track record to prove that we can take on the big insurance companies and win.

We represent clients throughout Contra Costa County and Alameda County. You can schedule your free consultation by calling 866-432-2133, or through email. Once we take on your case we pursue it with the diligence and dedication it deserves.