Board of Directors
Board member since 2016, Deborah joined the Cancer Support Community Redondo Beach in 2013 after her husband was diagnosed with esophageal cancer. A cancer widow and cancer survivor herself, Deborah has become a vocal advocate for CSCRB’s mission and programs. A retired engineering manager from Raytheon with more than 30 years of technical, cost and personnel management experience, Deborah is also a court-appointed special advocate for abused and neglected children in the Los Angeles County dependency system. Additionally, she is a Purdue University Women in Chemical Engineering Ambassador and a member of the Cal Poly San Luis Obispo Industry Advisory Board for the Women’s Engineering Program.
Sacha Ohara is SVP/Branch Administrator of Malaga Bank, a local community bank serving the South Bay. A member of the bank’s senior management team, Sacha is responsible for the retail banking branch network and operations, as well as managing the bank’s corporate and community involvement. A lifetime resident of the South Bay, Sacha was previously employed as a teacher in both the Torrance and Palos Verdes Unified School Districts and is well known in the community to both parents and students alike.
Preston Gegenfurtner, CPA
Preston, an Attest Director at PDM CPAs, has over ten years of experience performing audits and reviews for non-profit organizations and commercial businesses. Prior to PDM, he spent three years working in the accounting department of a community credit union. He has a Bachelor’s degree in accounting from Cal State Long Beach and a Masters in Business Administration from Pepperdine University. He has proudly served as VP Finance of Cancer Support Community Redondo Beach since 2013.
Josh Cohen, Officer
Josh Cohen is Principal of The Cohen Group, which specializes in the sale of multi-family properties in the South Bay and throughout Los Angeles County. A graduate of UCSB and the University of Michigan, Josh lives in Redondo Beach with his lovely wife and three children. He enjoys music and plays guitar in a local classic rock cover band. Josh has been a board member since 2018 and is a thyroid cancer survivor.
Walt Zipperman, Officer
Maureen Hazard, Vice President/Asst. Secretary
A seasoned corporate communications professional, Maureen most recently managed internal communications and several leadership and rotational development programs for the HR Department at Toyota Motor Sales. She also has held account management positions at several large advertising agencies and design firms in Southern California. She holds a Bachelor of Arts degree in Communication from Stanford University and attended the University of Southern California Business School’s Institute for Advanced Advertising Studies. Maureen now dedicates her time to volunteer work, sitting on the boards of the Cancer Support Community Redondo Beach as well as that of the Peninsula Committee Children’s Hospital. Her interests include golf, reading, writing and travel. Hazard resides in Palos Verdes Estates with her husband and has four grown children.
Daniel Hovenstine, Officer
Dr. Hovenstine fully retired from Radiation Oncology in 2016 after 30 years in practice of which 25 years were here locally at Torrance Memorial Medical Center. He has been involved with CSCRB since the early 1990’s and has been a member of the Board of Directors for more than 20 years including a past term as Board Chairman/President. He is enjoying a busy retirement primarily missing only his patients and colleagues, but values his continued ability to participate in their care and association through CSCRB.
Guido Rietdyk, Officer
Born and raised in The Netherlands, Guido moved to California to complete his undergraduate degree in International Business at San Jose State University in 1986. After completing military service as a 1st Lieutenant and Platoon Commander with the Royal Dutch Army stationed in Germany, he moved back to California to earn his MBA with a concentration in Brand Management from the University of Southern California. Residing in Rolling Hills, Guido is married with three children. His hobbies include soccer, war bird airshow and aerobatics flying with the Torrance-based Tiger Squadron, vintage car racing, fine wines and modern art. Very active in the community, Guido is President of the Board for the Cancer Support Community Redondo Beach.
Wade Nishimoto, Officer
A board-certified medical oncologist, Dr. Nishimoto also specializes in Hematology and has been in private practice at the California Hematology Oncology Medical Group for over 30 years. After completing his undergraduate studies with a B.S. in Microbiology/Immunology at the University of Washington in Seattle, Dr. Nishimoto finished his Internship, residency, and fellowship in oncology and hematology at the University of California, Irvine Medical Center. Originally from sunny Hawaii, Dr. Nishimoto transplanted to Southern California in 1984, and brings his own version of the Aloha spirit to the practice of oncology. Dr. Nishimoto joined the Cancer Support Community Board of Directors in 2010 and is currently serving as Chair of the Professional Advisory Board.
Kelli Vieweg, Sr. Vice President/President Elect
Kelli has an extensive background in Human Resources, Information Technology and Finance, having worked many years in the banking, aerospace and consumer products industries. A PHR and SHRM-CP certified Human Resources professional, Kelli started CMCK, LLC, an HR Consulting company in the South Bay after deciding not to relocate to the East Coast with a previous company. Kelli’s family has been impacted by cancer including two grandparents and her mother, who is a breast cancer survivor. Being able to use her skills for the Cancer Support Community Redondo Beach and contribute in any way she can to support the mission inspires her. Kelli holds a Bachelor of Science degree in Business Administration from the University of Southern California and grew up in the South Bay, along with her husband, both of whom were active in the community as they raised their two children.
Jim Hunter, Officer
Jim Hunter is a long time South Bay resident and has been very involved in his community as a member of the Manhattan Beach Rotary since 1992 (President 1996-97) and board member of the Providence Little Company of Mary Foundation and Board member of John Wayne Cancer Center Brain Trust. Jim retired from family-owned Web Service Company, multi-family laundry service after 39 years. He is active in Tour de Pier and a financial supporter through the Uncle Kory Foundation. Jim is also on the board of University of Arizona Foundation. Jim joined the CSCRB Board in 2014.
Kerry Brentlinger, Officer
Kerry has been a member of the Cancer Support Community since 2004. He joined the board after his wife Sharon received immeasurable support from the Cancer Support Community during her cancer treatment. He is a senior manager with Northrop Grumman and grew up in the South Bay. Kerry currently resides in Redondo Beach with his wife Sharon.