About Us


The mission of The Rosetta Center for Counseling and Wellness is to identify and meet the psychological needs of our community, with a strategic focus on serving the African American community. It is the goal of The Rosetta Center to empower, educate, and affirm all individuals to thrive and live their true calling.


Professionalism All staff members of the Rosetta Center adhere to the highest legal and ethical standards and relevant industry codes.


RespectEvery client is treated with dignity and respect.


QualityThe Rosetta Center delivers high-quality services that are both empirically and community-supported.


ConfidentialityA client’s right to privacy is respected and all client information is  kept confidential.


Community EngagementThe Rosetta Center offers and participates in community events that promote the principles of health and wellness.

Personal and Collective EmpowermentEach client served is encouraged to be an active participant in their own life, to develop their own path towards wellness, and to contribute to the creation of healthy families and communities.


Holistic Well-BeingThe Rosetta Center seeks to support the integration of all dimensions of wellness including social, spiritual, emotional, intellectual, physical, occupational, environmental and financial to create the optimal environment for healing and thriving.


Cultural Competence and HumilityThe Rosetta Center is committed to ongoing training in assessment and service delivery to underserved populations.  We seek to learn as much about various cultural identities at the same time recognizing our own limitations.  We approach each person with an openness and humility that allows us to learn about an individual’s personal experience within their culture in their own terms.  We are always learning!

“Caring for myself is not self-indulgence. It is self-preservation and that is an act of political warfare.” Audre Lorde

Our Team
Tiffany Mimms, PhD_CPsy_Assistant Professor 600px

Tiffany Mimms, Ph.D.

Founder, Psychologist

Establishing a positive therapist-client relationship is crucial to the success of psychotherapy. Creating an environment where you feel safe to discuss any concern is a primary goal of my therapeutic approach. I treat each client with respect, cultural sensitivity, and a strong sense of professional ethics. I see my role as both a collaborator and teacher. I like to actively work with you as we explore your unique concerns, struggles, and strengths. I use my expertise to highlight key patterns in your life that may be keeping you stuck, and to present alternative perspectives and strategies to help achieve your goals.I provide psychotherapy to adults struggling with depression, relationship difficulties, poor body image, low self-esteem, stress, grief, loss and life transitions. My specialties include sexual assault, domestic violence, and gender and cultural concerns. I also work with couples seeking to improve their communication and relationship satisfaction.

License: PSY21784

Chioko headshot


Associate Marriage and Family Therapist

I received my master’s degree in public health in 2014 and my master’s degree in counseling psychology from the University of San Francisco, with an emphasis on Marriage and Family Therapy (MFT) and Professional Clinical Counseling (PCC). I completed my internship at the Gender Health Center, providing direct therapeutic services to the LGBTQIA+ community. I have over 12 years of public health experience in both community health organizations and the state public health department. I have worked in genetic disease, nutrition, HIV care, chronic disease and reproductive health. I believe in providing innovative health interventions that are designed to improve equitable health care outcomes for Black, Indigenous, and other people of color. In 2014, I founded the annual Black Women’s Health and Wellness Conference, Sacramento which provides resources and space for Black women to participate in collaborative discussions, with mental health and wellness practitioners, in regard to their overall health and wellbeing. 

kayla 2021 headshot


Office Assistant

I graduated from William Jessup University with a bachelors in Psychology and have worked at the Rosetta Center for the last three years. I have a passion for people and believe that mental health is a crucial aspect of our overall health. I have thoroughly enjoyed my time at The Rosetta Center so far and look forward to continually learning more from Dr. Mimms. I am here to assist with anything that I can. I firmly believe in The Rosetta Center’s mission and values and seek to do my part in making it welcome to all, treating people with respect and actively listening to each client’s concerns and needs.


KOFI Adjepong

Psychology Trainee

I operate with the mindset, “where we start is not where we need to finish.” Our life experiences are our superpowers, and I am here to help build upon identifying your strengths. I am currently a second-year graduate student pursuing my doctoral degree. I believe we all carry unique experiences that will affect how to go about our collaborative efforts. I am not here to ‘fix you,’ but rather assist and help identify areas of concern. Collectively, we will strategize methods specifically tailored to the individual client.


Demond Washington

Psychology Trainee

As a PsyD student, I am passionate about the field of psychology and committed to becoming a well-rounded and knowledgeable mental health professional. With my strong background in social sciences and interest in helping others, I am eager to gain the skills and experience needed to succeed in the field. In my current studies, I am focusing on learning about a wide range of mental health issues and treatment approaches, with a particular career interest in working with underserved communities and athletes. I am also dedicated to staying current on the latest research and developments in the field and am always looking for opportunities to learn and grow.

IMG_2956 (1)

Jimmiela Bruessard

Psychology Trainee

I received my BA in Psychology at San Jose University and am now a second-year doctoral student at California Northstate University. My interests revolve around helping the community and giving clients strategies to improve on emotions, behaviors, communication and relationships.