Sunrise of Walnut Creek

Meet the Sunrise of Walnut Creek Team

We are pleased to introduce you to some of the team members who make our community a wonderful place to call home.

Marvin Jung

Executive Director

“When I work with our residents, I feel like I’m making new friends. Seeing their smiles and hearing their laughter makes each day here special. I have a deep respect for seniors and their infinite wisdom and knowledge.

I began my fascinating, wonderful journey with seniors in 1997. Assisted Living has been my passion for 18 years, and I have worked at every level to better understand the needs of our residents. I have been the Executive Director of Sunrise at Walnut Creek for nearly five years and have loved every minute of it. I feel fortunate to be part of such an amazing community, working with the best residents, family members and team members around!”

Kimberly Ashton

Health Care Manager

Kim came to work at Sunrise in 2014 after achieving her lifelong dream of becoming a nurse. She began as a medication care manager, was promoted to wellness nurse and then rose to her current position as health care manager.

“I love working at Sunrise because the organization is very family-oriented - residents’ families are always welcome to participate in activities such as the Sunrise Luau or holiday barbecues,” she said. “In addition, the Sunrise of Walnut Creek staff is its own family, and everyone extends a helping hand to one another.”

Kim is compassionate about her residents and staff, and always puts their needs before her own. She loves working with the residents and their families because she believes in advocating for their rights, especially when they are not able to communicate.

Sonya Vales

Assisted Living Coordinator

“When I was younger my mother was a caregiver, and I used to visit her and watch how much she enjoyed taking care of people. With her as an example, I began my own senior caregiving career when I was 15 and it has continued for the past 27 years.

Sunrise is an extended family, from the residents to the team members. During my time working with Sunrise, I have been able to successfully raise seven children and be the proud grandmother to Niko, my only grandchild. I enjoy shopping and spending time with family in my free time.”

Ron Havens

Maintenance Coordinator

“During my 30 years of working for seniors, what I find the most rewarding is the twinkle in our residents’ eyes and the smiles that light up their faces when you have done something so simple for them. I love knowing that we give them a safe, clean and comfortable place to live.

At Sunrise, our residents are our highest priority. This is their home and we are family. Every person on our staff truly cares and it shows in all they do.”

Ilyne J. Domantay


“Because I sit at the front desk, I have the rewarding opportunity to give, listen and share with the residents. The littlest acts of kindness can make a big difference and bring the biggest smiles. I enjoy developing friendships with our residents’ families and helping out in any way I can.

I love working in a beautiful, caring environment and I’m proud to have served on this Sunrise team for the past 13 years.”

Rona Cristobal-Valdez

Rona Cristobal-Valdez

Wellness Nurse

“My educational background includes a double major in sociology and gerontology with a minor in medical sociology and an associate degree in vocational nursing.

I was born and raised in Hawaii, and grew up with the Aloha spirit instilled in me. For me, taking care of seniors is a way of giving back and trying to make each day a better one for them. My residents have a wealth of knowledge, and I learn more about each person, their families and their experiences each day.

I love working at Sunrise because I feel honored care for these unique people with whom I’m able to share my Aloha.”

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