about
About US
We Support U is a community-based nonprofit organization providing support services for individuals and families in San Diego County.
Mission
Is to revive, renew, restore confidence, empowerment and self-esteem in every individual facing a cancer diagnosis.
Goal
Is to improve cancer prevention, screening and survival among underserved low-income communities and to be a comprehensive link between healthcare providers, cancer patients, their families and all community resources.

Executive Director
bertha tiznado
Bertha Tiznado—originally from Tijuana, Mexico—is a dedicated health professional whose career began as a Certified Medical Assistant in San Diego. Her passion for serving cancer patients led her to work as a case manager and later join the Y-ME National Breast Cancer Organization, where she spent over sixteen years making a lasting impact. Throughout her career, Bertha has earned recognition for her leadership and contributions to numerous organizations and initiatives, including the Celebrando and MANA “Día de la Mujer” committees, the National Training Partnership Advisory Board, and the San Diego County Promotores Coalition.
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Bertha is the co-founder of We Support U, a nonprofit organization in South Bay, San Diego, dedicated to cancer education, prevention, and treatment. She also served as the Business Liaison for UC San Diego Radiation Oncology South Bay for 11 years, building strong partnerships and expanding community outreach.
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Since 2021, Bertha has served as the Promotoras Program Director for Optima Medical Management Group, Inc. and Serene Health Group, where she manages and mentors more than 38 Promotoras across California. In this role, she develops innovative programs and outreach activities that strengthen medical and social services for underserved communities, including initiatives that support individuals experiencing homelessness and those facing mental health challenges.
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In addition to her professional work, Bertha serves on the boards of the San Diego County Promotores Coalition, and the Mexican Consulate’s Binational Health Committee. Her holistic approach to patient care, dedication to cancer prevention and early detection, and commitment to empowering communities through education make her an inspiring leader in the fight against cancer and a passionate advocate for health equity.

Director
oscar medina
Oscar Medina, with 34 years of healthcare experience, is a seasoned professional known for managing national and international business development for expanding healthcare firms. He is skilled in HMO contract evaluation, financial analysis, and business plan development, which has led to the creation of several successful strategic enterprises. As the founder and president of Optima Medical Management Group, Mr. Medina has shown remarkable growth, taking Community Care IPA from 700 to 152,000 managed care members. His expertise also extends to the founding of Serene Health IPA, a telehealth platform for mental health services, and serving as a consultant for the University of California San Diego Health System, where he developed a successful strategy for UCSD to manage the local El Centro Regional Medical Hospital.
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Mr. Medina's analytical acumen has enabled him to identify critical issues and implement effective solutions leading to positive results. He has been instrumental in obtaining necessary regulatory Knox Keene license requirements in California and setting up IPA physician networks across various states. As a bilingual entrepreneur with dual citizenship in the USA and Mexico, he has promoted and marketed healthcare services in different private sector segments. His experience in corporate administration, planning, and finance allowed him to successfully launch several start-up companies.
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Currently, Mr. Medina serves as a board member and founder of Cancer Circle Network of Healing, dba "We Support U" a non-profit organization aiding cancer patients and their families. He has served on several boards and sub-committees, including the San Diego County Medical Society Foundation, the Department of Health Services for the State of California, San Diego Chamber of Commerce, Hispanic Chamber of Commerce, and the Coachella Valley Health Partnership. His dedication and commitment to the healthcare field have made him a respected figure in both private and public sectors.
Meet the Team
FOUNDERS
EXECUTIVE BOARD

Director
Jesus Omar partida
Jesus Omar Partida, founder and CEO of Molecular iQ Corp, is a nuclear medicine postgraduate from the University of California, San Diego, with extensive training in nuclear pharmacology and cyclotron operations. He has a distinguished record of launching over 50 cancer centers and molecular imaging facilities across the United States, Latin America, and the Middle East. Leveraging his years of experience in physician training, contracting, sales and marketing, and clinical operations, Partida has forged strategic partnerships with healthcare systems, governments, medical equipment manufacturers, and clinicians, delivering a practical yet forward-thinking approach to joint venture goals. His entrepreneurial prowess was exemplified in his 13-year tenure at RadNet, Inc., where he held numerous pivotal roles and successfully managed RadNet’s largest international partnership with the State of Qatar, leading to a significant increase in cancer screening. As a leader in clinical research collaborations with numerous pharmaceutical companies, Partida has successfully launched and commercialized Molecular Imaging and Therapies, driving medical advancements in a variety of patient populations.
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Director
Rosa Sandoval
Dra. Rosa Sandoval has over 25 years of experience in Healthcare. She graduated medical school from UAG in Guadalajara Mex. and has worked in the U.S. and Mexico, she has an extensive background, coming from Children’s Hospital Los Angeles, AltaMed, and Shriners Hospital for Children where she was part of the ambulatory outreach clinic providing pediatric evaluations for orthopedics, burns, and cleft lip & palate patients. Currently, she manages the Women’s Health department at San Ysidro Health and for the past 7 plus years, her main focus has been prenatal care and cancer detection in Women, helping to bring access to medical services to our underrepresented monolingual Spanish-speaking patient population in San Diego. Additionally, she provides medical services to “Carita de Dios AC” a school for Special Needs children in Tijuana Mexico, providing them with free treatment, and medical equipment, all in an effort to decrease the inequalities in medical care in Tijuana. She is passionate about serving the community on both sides of the border to lessen disparities and barriers to healthcare.
ADVISORY COMMITTEE

Medical Advisory Board
carlos deCarvalho M.D.
Dr. De Carvalho has been practicing medicine since 1983. Dr. De Carvalho received his medical degree from Universidad Autonoma de Guadalajara in 1976.

Advisory Board
mery lopez gallo
Mery Lopez-Gallo, a broadcasting graduate from San Diego School of Broadcasting, celebrates her 15-year tenure at Univision Radio, where she began as a creative writer and translator and ascended to the role of a radio personality and Director of Community Affairs. Her key contributions include raising $5.1 million for St. Jude Children's Research Hospital, serving on the boards of multiple non-profit organizations, including the Foundation for the Children of California, the Chicano Federation, and the Teatro Mascara Magica, and playing a crucial role as a member of Mexico's Institute of the Mexicans Abroad advisory board. She also led a campaign promoting voting among Mexicans in the US during the 2012 Presidential elections, and as the Executive Producer and host of "De Viva Voz," Univision Radio's Sunday morning Community Affairs show, she has empowered the Hispanic community by facilitating around 700 informational interviews with representatives from major government agencies and organizations from both sides of the border.