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Leadership & Team

The means of our ongoing success lies in
the high-quality individuals George Hills
continues to recruit, train and retain.

claims team
leadership team
client services team
corporate team
Jerry Bowen
Jerry Bowen
Claims Supervisor

Since 2000, Mr. Bowen has been immersed in Claims Management. He is experienced with auto, personal injury, civil rights, and employment related claims. Mr. Bowen holds an Associate in Claims from the Insurance Institute of America.

Debbie Johnson
Debbie Johnson
Claims Supervisor

Ms. Johnson has nearly 30 years of experience as a claims supervisor. She is well-versed with Bodily Injury claims and the unique nuances of claims administration for California public entities. She holds a BA in Management from the University of Phoenix.

Randy Lingenfelter
Randy Lingenfelter
Claims Supervisor

Mr. Lingenfelter has over 30 years of experience working in the claims industry. His career began in 1991 and he has held several positions throughout his career, most recently a management position in the role of Claims Supervisor. Mr. Lingenfelter brings extensive public entity experience to the table– working in the public entity arena for the past 20 years. Mr. Lingenfelter holds a degree in Business Administration from Fresno State University.

Rose Melchor
Rose Melchor
Claims Supervisor

Ms. Melchor has 35+ years in the insurance claims business. She has spent the last 12 years handling and managing public entity claims as a Senior Claims Adjuster and a Litigation Manager for a Joint Power Authority implementing processes and oversight of excess exposure claims.

Jessica Pickering
Jessica Pickering
Claims Supervisor

Ms. Pickering began her career in the industry in 1994 and has handled a vast range of claims handling, personal and commercial lines, public entity general liability, civil rights, and employment practices liability. Prior to joining George Hills, Ms. Pickering was the Senior Claims and Litigation Adjuster for a JPA consisting of seven school districts in Southern California.

Tammy Hunt
Tammy Hunt
Claims Supervisor

Ms. Hunt has 26 years of experience in the industry. She has been focused on subrogation recovery for public entities for 15 years.

Sylvia Schweizer
Sylvia Schweizer
Claims Supervisor

Sylvia Schweizer lives in Whittier, CA and graduated Whittier College with a degree in Political Science. Sylvia has been in the insurance industry since 2001. In her spare time, she enjoys reading, cooking, and traveling with her husband and two children.

John E. Chaquica
John E. Chaquica
Chief Executive Officer

John E. Chaquica, George Hills’ chief executive officer, he is well known for his innovation, industry knowledge, team building, and inspiring leadership. With over 35 years of experience in finance, risk and JPA management, he applies a virtually unmatched level of experience and talent to every problem. Before joining George Hills in 2008, John was CEO of Bickmore Risk Services and the audit partner at Gilbert Accountancy Corporation. Under his guidance at George Hills, the firm continues to grow and build a solid reputation as the preferred TPA of California public entities.

Chris Shaffer
Chris Shaffer
Chief Operating Officer

Mr. Shaffer has an exceptional, 28-year record of achievement in the management of corporate clients, risk management, business systems, and information systems operations. He has proven his ability to improve business performance, increase capabilities and efficiency, reduce costs, minimize risk, and streamline workflow by implementing technology and process enhancement solutions.

Randy Rendig
Randy Rendig
President Emeritus, Claims Administration

Mr. Rendig is an established Liability Specialist with public entities. He has decades of industry experience with a background that includes work for Liberty Mutual Insurance Company, California Casualty and as George Hills’ account manager for the County of Sacramento.

Shari Huff
Shari Huff
Assistant Vice President

Ms. Huff has over 27 years of management-level experience in the insurance claims industry. She brings extensive public entity experience to the table– working in the public entity arena for the past 14 years. Ms. Huff earned her degree from the University of Santa Barbara. She holds an Associate in Claims-Management (AIC-M) designation.

Chris Hunt
Chris Hunt
Assistant Vice President

Mr. Hunt has over 28 years’ experience in the insurance claims and risk management industry primarily serving self-insured public and private clients. Mr. Hunt earned a Bachelor of Science in Behavioral Science from California Polytechnic University, Pomona. He holds an Associate in Risk Management (ARM) designation.

 
Todd Mershon
Todd Mershon
Client services manager

Mr. Mershon has 20 years of experience in client services and is committed to our clients’ satisfaction. Mr. Mershon holds a Bachelor of Arts Degree from California State University-Fullerton. He also earned his Associate in Risk Management (ARM) credential.

Kathleen Proctor
Kathleen Proctor
Client services manager

Ms. Proctor holds a BA in Criminal Justice from California State University, Sacramento. She is experienced with public entity claims, public records, and business development. Ms. Proctor has a decade of experience as a Risk Manager, and nearly a decade of operation management.

Ben Oram, Esq.
Ben Oram, Esq.
General counsel

Mr. Oram has been practicing law since 2010. He attained his Bachelor of Science degree in Criminal Justice in 2006 from California State University, Sacramento and then went on to attain his California Juris Doctorate degree from the University of the Pacific, Mc George School Law in 2009.

Neil Callahan, Esq.
Neil Callahan, Esq.
Litigation Manager

Cornelius (Neil) Callahan, Esq. has 25 years of experience defending public entities on high profile claims in state and federal courts. In 1999, he began practicing law in California where he served as lead trial counsel for public entities in the areas of civil rights, police practices and dangerous condition defense.

Catie Chaquica
Catie Chaquica
Chief Administration Officer

Catie is the Corporate Services Manager for George Hills. Her primary focus is to support the CEO and COO, to execute operational and strategic directives, and contracting support for company clients and vendors. She started her career in the medical field as a clinical coordinator and supervisor for nearly 20 years, providing her a unique perspective on daily operations. 

Samantha Morgan
Samantha Morgan
Claims Supervisor

Ms. Morgan has more than 20 years of experience handling claims in Public Entity General Liability areas. She has more than 20 years of litigation experience. Ms. Morgan is well-versed in handling complex, litigated claims, and holds a Business Administration Degree from California State University, Los Angeles.

Jeanne Amacker
Jeanne Amacker
Claims Supervisor

Ms. Amacker earned her master’s degree in Public Administration from California State University, Dominguez Hills in 2004. Just four years prior she began her insurance career with the County of Orange, where she was a Senior Claims Examiner for 14 years. Ms. Amacker has investigated, monitored, and maintained various aspects of the claims handling process. She is highly accomplished at interpreting government rules and policies governing public sector labor and employee relations, EEOC and affirmative action principles, AD, HIP, Peace Officer Bill of Rights, and Labor Code 4850.

Our Team
10+ Years of Experience

Our Team

We put forth our best effort in recruiting, training and retaining public entity adjusting experts. Our licensed, educated team works to ensure George Hills remains the best in the business while holding true to the values of George Hills. George Hills equips adjusters with unmatched George Hills Claims University (GHCU) training, state-of-the-art technology, and knowledge of our specialized current best practices to ensure the highest levels of efficiency and quality.

Our claim division staffing structure ensures that the quality of the work we provide will meet your exacting expectations. We employ claim executives who have been in the business of serving public entities for most of their careers. This coupled with George Hills’ focus on providing superior service, makes us California’s TPA of choice and is crucial to building a lasting relationship with our clients.

More About Us

More About Us

Experience

Leadership & Team

Team - Corporate

Team - Client Services

Team - Claims

Recent News

Visit us at League 2021

George Hills is happy to be back in person for the CAJPA conference after a few ...
George Hills
Sep 03, 2025

“Where’s My Money?” George Hills Subrogation Recovery Division Helps Public Entities Find Funds

Public entities in California often ask themselves where they’re going to find ...
Tammy L. Hunt
Feb 14, 2025 • 2 minute read

George Hills’ Subrogation Recovery Services Go The Extra Mile

George Hills Subrogation Supervisor Tammy Hunt. From PublicCEO When an accident ...
Tammy L. Hunt
Sep 23, 2024 • 4 minute read

George Hills Strengthens Subrogation Approach with Personnel and Technological Expertise

From PublicCEO The subrogation recovery process is essential to managing ...
Tammy L. Hunt
Sep 13, 2024 • 2 minute read
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