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Newport Beach

3501 Jamboree Road
Suite 602
Newport Beach, CA 92660

TEL:  949.252.1300
FAX:  949.252.1399



TINA M. KESTEN obtained her Bachelor of Arts Degree from the University of California, Santa Cruz, majoring in History with Honors. She received her Juris Doctor from the Southwestern University School of Law in Los Angeles, California.


Ms. Kesten served as a Paralegal Instructor prior to becoming an attorney. Ms. Kesten practiced as an applicant attorney for more than three years in Workers’ Compensation for a large firm where she handled 132(a) discrimination complaints and Serious and Willful violations as well. Her background in applicant work has given her the knowledge and skill to practice Workers’ Compensation Defense aggressively. She now solely represents large employers, third party administrators and insurance companies in Workers’ Compensation for all Southern California boards. On the weekends, she devotes her time to being team mom for her daughters’ OC Allstar dance team as well as helping her son coordinate various charity activities through his service organization. Ms. Kesten joined the Newport Beach office of Samuelsen, Gonzalez, Valenzuela and Brown in 2008.



ROBERT R. CAMPBELL, II graduated on the Deans Honor Roll for all semesters from California State University, San Bernardino in 1991 with a Bachelor of Arts in Political Science and Minor in Psychology. Mr. Campbell received his Juris Doctor from University of Laverne, College of Law, in 2004 with an American Jurisprudence Award in Criminal Law.


Mr. Campbell has over 21 years of experience handling Workers’ Compensation. He started his career as a Hearing Representative, Vocational Rehabilitation Coordinator and Paralegal. Thereafter, Mr. Campbell became a Managing Attorney where he operated and managed an office in the Riverside area and concurrently handled the case management of over 1000 Applicants from case inception to settlement and/or trial. Mr. Campbell also served as a Senior Associate Attorney where he had daily appearances at numerous Workers’ Compensation Appeals Boards including: San Bernardino, Riverside, Pomona, Anaheim, Santa Ana, Van Nuys, Marina Del Ray, Los Angeles, Long Beach and San Diego. Mr. Campbell has settled 1000’s of cases, taken over 500 depositions throughout his career and filed numerous Petitions for Reconsideration resulting in persuasive law. Mr. Campbell has a winning record in the courtroom and in ADR proceedings based on strong capabilities in preparing expert witnesses for court testimony. With Mr. Campbell’s extensive experience as an Applicant Attorney, he understands how to most thoroughly represent Employers, Insurance Companies and third party administrators on their Workers’ Compensation claims.

Mr. Campbell brings great knowledge and experience to the firm. He joined the law office of Samuelsen, Gonzalez, Valenzuela and Brown as an Associate in 2010 and is currently a partner where he handles Workers’ Compensation Defense in our Newport Beach office.



Aurora Ayala obtained her Bachelor of Science degree in 1999 from Pepperdine University, where she majored in Business Management. She also attended a Workers’ Compensation program through the University of Southern California.


Ms. Ayala began her career as a Hearing Representative in the area of Workers’ Compensation in 1990. She has attended a wide array of seminars on Workers’ Compensation and all its facets. She has covered over 700 appearances at Mandatory Settlement Conferences, Rating Conferences, Status Conferences, Trials, Vocational Rehabilitation Formals, depositions of applicants and witnesses and cross-examinations of physicians at various venues such as the San Diego, Santa Ana, Anaheim, Long Beach, Pomona, Riverside, San Bernardino, Oxnard, Bakersfield, Fresno, San Francisco, Oakland, Sacramento, San Jose, Redding and Marysville Appeals Boards.

She has also taught several seminars on rating including Rating under AMA Guidelines, and the Supplemental Job Displacement/Voucher issues.

She began working with Samuelsen, Gonzalez, Valenzuela & Brown in early 2005 as a Hearing Representative in the Newport Beach office. Prior to that she worked at another defense firm for more than four years and prior to that she brought with her over 14 years of expertise and knowledge of handling applicants’ claims.



KIMBERLY R. OGATA received her Bachelor of Science Degree in Biological Science from Colorado State University in 1999. She received her Juris Doctor from California Western School of Law in 2002 and was admitted to the State Bar of California that same year.


Born and raised in Kona, Hawaii, Ms. Ogata was a member of the Hawaii Clubs throughout her attendance at Colorado State University and during law school. She served as a Small Claims Clerk Advisor at the Superior Court in South Bay, San Diego County. Ms. Ogata also participated in a non-profit guardianship clinic in assisting walk in clients. Prior to joining the Newport Beach office, Ms. Ogata interned for a civil law firm in the intellectual property department. She joined the Newport Beach office of Samuelsen, Gonzalez, Valenzuela & Brown in August of 2003 practicing Workers’ Compensation Law, defending employers, claims administrators, and insurance carriers with quality legal services for over six years. Ms. Ogata is also Certified Specialist in Workers’ Compensation Law.



NANCY J. BROWN received her Bachelor of Arts Degree in Business from Michigan State University, East Lansing, Michigan, in 1981. She received her Juris Doctor in 1991 from Pacific Coast University College of Law in Long Beach, California. She was admitted to practice in 1992 and became a Certified Specialist in Workers’ Compensation in September 1999.


From 1981 to 1992 she worked exclusively in the medical field. This included consultation on a direct basis with physicians of various medical specialists including Orthopedic, Neurology, Internal Medicine, Psychiatry, and Radiology. She has an extensive background and working knowledge of how the various medical specialties interact with Workers’ Compensation cases.

Ms. Brown is a partner at Samuelsen, Gonzalez, Valenzuela & Brown. She specializes in Workers’ Compensation defense, and is a former President of the Long Beach Bar Association. Ms. Brown has been Chairperson of the Orange County State Bar Association/Workers’ Compensation section and has served as a Judge Pro-tem. She was also appointed to the State Bar’s Workers’ Compensation Law Advisory Commission in 2005, serving as Vice-Chairperson from 2007-2008, and beginning September of 2008, Ms. Brown served as the Chairperson until 2009. Ms. Brown is consistently top ranking to the competition with our clients. Her aggressive approach to early file closures continues to keep her on top of our clients’ tracking measures. She is also a consistently sought after speaker with many of the Workers’ Compensation industry conferences to include RIMS and the Workers’ Compensation Forums of California for her expertise. Ms. Brown currently works out of the Newport Beach office.


WCAB decision published: Irvin v. WCAB/City of Los Angeles, 62 CCC 1297 (1997). Additional decisions can be sent to your attention per your request for any attorney.



HARVEY S. BROWN received his Bachelor’s Degree from California State University of Northridge in 1969, and obtained his law degree from San Fernando Valley College of Law in 1979. Mr. Brown has been working as a Workers’ Compensation specialist after passing the exam with the State Bar of California in 1993.


Mr. Brown was admitted to practice in 1979, and worked as an attorney at the State Compensation Insurance Fund from approximately 1979 to 1991. Until 1986, Mr. Brown was an associate attorney, handling complex legal matters including defense, 132(a) and S&W’s. During that time, Mr. Brown also trained in and handled the Longshore and Harbor Workers’ Compensation claims for the State Compensation Insurance Fund.

In 1986, Mr. Brown was appointed Managing Partner of the Cerritos office of State Compensation Insurance Fund. In that capacity, he managed 15 attorneys as well as a support staff of 20. During that period, Mr. Brown dealt with various claims departments, providing direction, control and training. From 1986 to 1991, Mr. Brown also provided legal training, conducted seminars, and created teaching materials for the seminars for 300 attorneys with State Compensation Insurance Fund. During that time Mr. Brown also advised school districts and self-insured employers such as the State of California which would often involve meetings with state agencies and state personnel.

In 1991, Mr. Brown became an associate with Samuelsen, Gonzalez, Valenzuela & Brown and in 1994; he became a partner with the firm. Since 1998, Mr. Brown has been a member of the Board of Directors of the firm and currently serves as the managing partner of the Newport Beach, Encino, San Diego and Sacramento offices.

Prior to opening the Orange County office, Mr. Brown was in charge of training all new attorneys with the firm. This included integrating them into the Workers’ Compensation environment, giving them complete training as well as monitoring their daily activities. As a managing partner, Mr. Brown handles all complex litigation including 132(a) ‘s and S&W’s.
Mr. Brown has been the Secretary, Vice President and President of the Long Beach Workers’ Compensation section of the Long Beach Bar Association. In that regard, he has also conducted seminars in the past several years on Workers’ Compensation issues for the Long Beach Bar Association, together with Mr. Allan Bass, the former presiding judge from Santa Ana.

Mr. Brown has also prepared a newsletter for the past several years, providing clients with the latest updates, and giving them legal and advisory opinions on the latest Workers’ Compensation laws. Mr. Brown also performs Workers’ Compensation seminars for his clients, and provides legal advice by telephone and/or e-mail on cases that he may not be representing clients on.