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TreVista in Concord, CA
Feels like home.
Our Concord community is proud to provide assisted living and memory care services in a comfortable and inviting environment.
We have a variety of floor plans—from companion rooms to private deluxe studios with kitchenettes. Our goal is to provide an exceptional home for seniors with varying care needs. Our aim is to ensure you live as independently as possible, with the help of our caring team.





Concord community features.
Our Concord, CA based senior living community is dedicated to offering top-notch assisted living and memory care services to each individual in our care. We create a warm and welcoming atmosphere for our residents, with a range of living options to suit different preferences, including companion rooms and private deluxe studios equipped with kitchenettes. Our primary objective is to create an outstanding senior living experience by offering compassionate care with a personalized approach. We focus on enabling our residents to enjoy independence, supported by the outstanding assistance of our dedicated team.
Our Concord community is proud to provide assisted living and memory care services in a comfortable and inviting environment. We have a variety of floor plans—from companion rooms to private deluxe studios with kitchenettes. Our goal is to provide an exceptional home for seniors with varying care needs. Our aim is to ensure you live as independently as possible, with the help of our caring team.
Virtual Tour
Virtual Tour
Our leaders.
Our amazing and dedicated team members are the key to making our community a true home. They understand the difference between caring and giving care, and they hold true to our philosophy of treating individuals as they would their own family and creating remarkable moments each day.
Executive Director

Siobhan Lehman
Siobhan Lehman took charge of TreVista in Concord in January 2022. She brings more than 25 years of experience in senior living to TreVista, previously serving in a variety of roles including Executive Director and Business Office Director as well as Community Relations, Marketing, Sales and Activities.
She grew up being especially close to her grandmother, and was inspired to pursue a career helping seniors in part due to their relationship. Siobhan enjoys serving the residents of TreVista and is especially motivated to ensure wellness for all in the community.
She earned a degree in Recreation and Leisure Studies from the California State University-Sacramento. She also holds her RCFE license. Siobhan has two college-aged children. In her spare time, she enjoys spending time with family and friends and outdoors – particularly, hiking, backpacking and kayaking.
Senior Living Consultant

Mike Bonifay
Mike Bonifay is the Senior Living Consultant at TreVista in Concord. Since 2021, he has worked closely with potential residents and families considering care for their loved ones.
Mike brings a well-rounded variety of experience to the TreVista team with all of his previous positions exhibiting a common thread – providing care and support for others. After spending 25 years as a paramedic throughout Northern California, in 2014, Mike transitioned to a care coordinator position at John Muir Health in Walnut Creek. It was in this role that he spent time in various senior living communities, including TreVista. His experience in our community, and witnessing TreVista’s welcoming, friendly and supportive environment prompted him to join our team. Now, he enjoys supporting families and residents who are contemplating the tough decision of choosing their next home. He recognizes the need for an honest and heartfelt approach to his role and works hard to ensure that TreVista is a wonderful fit for each and every resident who walks through our doors.
Mike and his wife, Wendy, have four grown sons and six grandchildren. In his free time, Mike enjoys boating, cooking, playing guitar and spending time with his family.
Community Sales & Marketing Assistant

Nathaniel Tan
Bio comings soon.
Human Resources Assistant

Erin McMann
Bio Coming Soon.
Culinary Services Manager
Shane Azevedo
Bio Coming Soon.
Maintenance Supervisor
Jesus Renteria
Bio Coming Soon.
Director of Nursing
Stephanie Perez
Bio Coming Soon.
Life Enrichment Coach
Sandra Oliver
Bio Coming Soon.
Activities and Life Enrichment
View our activity calendars to keep up with what’s happening at TreVista Concord.