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Dr. Oliver Brooks, MD


On February 17, 2023, the Watts Healthcare Board appointed Watts Healthcare’s Chief Medical Officer, Oliver T. BrooksMD, FAAP, FCPP, to assume the role of Interim Chief Executive Officer.  Dr. Brooks has been with Watts Healthcare since 1989.  He previously served as Medical Director and Chief of Pediatric and Adolescent Medicine; and still hold the title of Chief Medical Officer.

Dr. Brooks holds a degree in chemistry from Morehouse College and a medical degree from Howard University College of Medicine. In 2019, Dr. Brooks was elected to the office of the President of the National Medical Association (NMA).  Dr. Brooks holds staff appointments at Centinela Hospital in Inglewood, CA and Martin Luther King Community Hospital in South Los Angeles, CA.  Dr. Brooks is Past-Chair of the Community Clinic Association of Los Angeles County (CCALAC); Past Chair, CA Primary Care Association (CPCA), Clinician Committee; and is one of 15 members of the CDC’s Advisory Committee on Immunization Practices (ACIP).  Dr. Brooks has many other affiliations and awards.

Haregewoin (Hara) Yohannes, B.S.B.M., M.B.A.

Chief Financial Officer

Haregewoin (Hara) Yohannes has served as the Vice President of Finance at Watts Healthcare Corporation since April 2003 and was appointed Interim Chief Financial Officer in September 2019 and Chief Financial Officer in October 2020.  She previously served as Financial Analyst, Manager of Operational Analysis, Director of Finance & Analysis, Controller and Acting CFO.  She has worked at Charles Drew University of Medicine and internationally on the continents of Africa and Asia.

Ms. Yohannes earned a Bachelor of Science degree in Business Management from Pepperdine University, Malibu California and a Master of Business Administration with an emphasis in Finance from California State University, Long Beach, California.

Olusheyi Lawoyin MPH, MBA


Olusheyi (Sheyi) Lawoyin is the Chief Operations Officer at Watts Healthcare Corporation (WHCC), where she is responsible for the day-to-day operating activities and provides executive leadership for advancing the Watts Healthcare Corporation, with an operating budget of more than $40 million.

Prior to her appointment, she led Patient-Centered Medical Home and Lean care transformation at Clinica Sierra Vista, a network of integrated community health centers, serving the primary medical, dental and behavioral health needs of about 200,000 individuals in Kern, Fresno, and Inyo counties. Prior to this, she was the Director of Operations at a Community Health Center in Northern California and worked in operations and planning with Emory Healthcare and Emory University School of Medicine in Atlanta, Georgia.

With a background in global and community health, she has been a United States Peace Corps volunteer with the Namibian Ministry of Health and Social Services; managed the health portfolio for the Public Affairs Section of the US Consulate General in Lagos, Nigeria; provided program and research support at the Institute of Medicine of the National Academies and served as an ASPH/CDC Global Health Fellow with the Centers for Disease Control and Prevention.

Sheyi received an MBA from Emory University’s Goizueta Business School and an MPH from George Washington University’s School of Public Health and Health Services.



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