Our Team

Our motivated and compassionate treatment team includes doctors specializing in addiction psychiatry and medicine, nurses, certified counselors and treatment associates. Each Hina Mauka team member strives to provide exceptional service to ensure every client receives the help that best meets their unique needs.

Alan Johnson
Chief Executive Officer
Before being promoted to CEO in 2007, Alan Johnson served Hina Mauka for more than 10 years in various capacities including COO, CFO and Managing Director. Click to see more

Alan has been Chair of the Hawaii Substance Abuse Coalition, a hui of 30 treatment agencies, since 2005. Additionally, as a chair or member of several task forces, he has worked to evolve state policy to support a treatment model integrating medical services, co-occurring disorders, ex-offender programs such as reentry and expanding adolescent prevention and treatment programs. Alan brings not only expertise and experience as a leader in the delivery of recovery treatment services, but also a compassionate and caring style. He envisions a “Recovery Management” approach for Hina Mauka’s programs that provides a long-term and holistic approach to treatment.

Desie Graves
Chief Financial Officer

Desie Graves has over 27 years of nonprofit fund accounting experience with various nonprofit organizations in the State of Hawaii.Click to see more

Desie is responsible for financial planning, reporting and systems analysis in accordance with generally accepted accounting principles. As the chief financial spokesperson for Hina Mauka, Desie is in a key position to work with the CEO on all strategic and tactical matters for budgets, contract management, forecasting needs and helping to secure new funding.

Sherrie Kinoshita
Director of Administration
Sherrie Kinoshita has over 10 years of supervisory experience in the field of behavioral health and has worked at Hina Mauka since 2000.Click to see more

Sherrie manages quality improvement, national accreditation (CARF) standards, contract compliance, proposal preparations, oversees Administration & Clinical Administration, Food Service, and is the organization’s Compliance Officer.

Toshiyuki Shibata, MD
Medical Director
Dr. Shibata is a Board Certified Psychiatrist and has over 20 years’ experience. Click to see more

Dr. Shibata has a BS from the University of Michigan and attended medical school at University of Texas. Dr. Shibata is involved in direct patient care and oversees our medical & clinical department.

William Mousser, MA, CSAPA, CSAC
Director of Adult Services
William Mousser has worked in the substance abuse treatment field since 1992 and joined Hina Mauka in 1997. Click to see more

He holds a master’s degree in education and is certified as a Substance Abuse Counselor (CSAC) as well as a Substance Abuse Program Administrator (CSAPA). As the Adult Program Director at Hina Mauka, William implements new developments and evidence-based practices. William oversees adult programs, including process improvements, staff development, and quality of care. He also works closely with community organizations and other related agencies.

Colleen Fox, PhD, CSAC, CPS, CCS
Director of Adolescent Services, Hina Mauka Teen CARE
Colleen has been with Hina Mauka since 1997 and became the Director of Adolescent Services in 2002. Click to see more

Prior to her experience at Hina Mauka Colleen had worked with women and their children at the Salvation Army Family Treatment Services. Seeing the impact of substance abuse on children inspired a desire to help youth and their families. Earlier in her career, she has had the opportunity to learn about the substance abuse community through her experiences coordinating the Independent Peer Review process for substance abuse agencies receiving federal funding as well as her work at the Hawai‘i State Legislature. Colleen is a graduate the University of Hawai‘i at Mānoa and is certified as a substance abuse counselor, prevention specialist, clinical supervisor, and program administrator. Colleen brings her experiences working as a counselor, promoting best practices in adolescent substance abuse services, and collaborating with organizations that help youth to her work at Hina Mauka.

Board Members

Michael Matsumoto, P.E., F.A.C.E.C., Chair
President/CEO, SSFM International, Inc.

Colin Lau, Vice Chair, Governance Committee, Secretary
Imperial Associates

Signe Godfrey, Vice Chair, External Affairs Committee
President, Olsten Staffing Services (Ret.)

Alan Johnson
President & CEO, Hina Mauka

Angela Smith
Branch Manager, First Hawaiian Bank

Celia Ona, M.D.
Psychiatrist, UH Department of Psychiatry

Nancy Grekin
Attorney At Law

Matthew Layug
RN, Queens Medical Center

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