Theresa De Dios

Senior Executive Director

Peninsula Family YMCA

Theresa grew up in South San Francisco and has a Bachelor’s Degree in Psychology from San Francisco State University. Theresa is well-known for her deep connections with community partners and her relationships with staff. Theresa is a tireless advocate for children and families and influences change beyond her work for the Y. When not at the Y, you can find Theresa spending time with her husband, daughter and extended family, hiking, or practicing her archery and boxing skills.

Miranda Boon

Associate Executive Director

Peninsula Family YMCA

(650) 294-2614

Miranda has always has a passion for health and wellness. In her free time she enjoys going to bay area sporting events, going to concerts, and playing out in the sun!

Bill Burke

Director of Youth Development

(650) 294-2638

Bill has worked in Youth Development for over 15 years and is passionate about building community within our San Mateo County school sites. In his spare time he loves running, reading, and participating in any outdoor activity.

Valerie Azinheira

Healthy Living Director

(650) 294-2624

Health and Wellness has always been a passion of Valerie's. She loves sharing that passion by helping others cultivate a lifelong healthy lifestyle and to find their most radiant self! She was born and raised in San Francisco and grew up running around Lake Merced with her dad. She feels very fortunate to be able to share that same experience with her family! A year after her son was born, she competed in Iron Man Canada and qualified and ran the Boston Marathon, a year after her daughter was born. In her free time, she enjoys hanging out with her husband and kids, running, hiking, weightlifting, reading, and traveling/exploring!!! 

Carlos Rivas

Membership Director

(650) 294-2699

Carlos is a hardworking and goal-oriented person who joined the Peninsula Family YMCA in 2017. He is committed to his work with the members and his team. He strives to ensure that members feel welcomed and are taken care of. Carlos enjoys spending time with his family, playing fetch with his dog, and is an avid Bay Area sports fan.

Lariece Williams

Director of Youth Development

Lariece has majored in Early Childhood Education and finds working with children keeps her young at heart. She enjoys completing puzzles, listening to books on audible, going to Disneyland, and camping is a new adventure for the family.  

Nic Robinson

Aquatics Director

Nicolai has consistently demonstrated a deep commitment to supporting and contributing to the community. His dedication has been evident through his participation in mission trips, his service as a volunteer firefighter, and his involvement in various community programs. Nic's passion for creating safe and enjoyable pool environments has been a driving force behind his work. Although Nic was born in Bulgaria, he has been a resident of New Jersey and Pennsylvania for the majority of his life, having been adopted at the age of 4. Currently, Nic is pursuing a Master's degree in Organization Development and Change from Penn State University. He brings with him a wealth of experience and expertise in this field. Nic is excited to join the Peninsula Y team and is eager to enhance the organization's DEI programming for youth and families. His commitment to developing inclusive and equitable programs will undoubtedly benefit the organization and the community it serves. In his leisure time, Nic enjoys engaging in a variety of activities, including surfing, skateboarding, snowboarding, and swimming.

Connor Leachman

Associate Youth Programs Director

Conner was born and raised in Arroyo Grande, CA (just south of San Luis Obispo) until he moved to the Bay Area, earned his Bachelors degree in Recreation at San Jose State University. Conner has a passion for working with kids and enjoys helping them create healthy habits and positive relationships with their peers. In his free time, he loves going to Giants, Warriors, and 49ers games

Board Members 

Alexandre Coimbra

Board Chair

Sr Clinical Imaging Scientist


Edward Chang

VP Business Development

Freedom Financial Network

Bill Craumer

Lavenir, Inc.

Margaret King

Vice President of Fintech Partnerships & Corporate Strategic Investments

Franklin Templeton Risk and Transformation group

Maria Majka

San Mateo Office of Education Mentor

Andrew Okimura

Senior Consultant


Emma Shlaes

Transportation Demand Management (TDM) Program Manager