Meet our Executive Team
Chief Executive Officer
BJ has been the Mālama I Ke Ola Health Center Chief Executive Officer since April 2017. She had been Acting CEO for the previous 18 months while the former CEO was on leave of absence. Prior to that BJ served as Chief Financial Officer for 24 years, while also serving as Deputy Director for 16 years.
BJ is Mālama I Ke Ola Health Center’s representative on the Hawai‘i Primary Care Association Board, where she chairs the Finance Committee, and serves on the Payment Reform Advisory and External Affairs Committees. BJ is the current Board Treasurer of AlohaCare, a health-center founded Medicaid managed care plan, and also serves on the Executive, Compliance, Finance (as Chair) and External Affairs Committees for the organization. She was appointed by the Governor to serve on the Hawai‘i Health Systems Corporation Maui Regional Board from 2008 to 2015, where she chaired both the Audit and the IT Committees. She served twice on the Maui AIDS Foundation Board for a total of 12 years, eight as Board President.
Born and raised near Valley Forge, Pennsylvania, BJ has been a resident of Maui since 1970. The wanderlust that brought her to Maui has taken her to most European and Balkan countries, Japan, India, Southeast Asia, Central America, the South Pacific, and around Cape Horn on a Patagonian adventure as well. She is a former competitive cyclist and equestrian, has hiked throughout much of the Hawaiian Islands and sailed the Dalmatian Coast on a rented yacht with her family.
John Vaz, MD
Dr. Vaz moved to Maui from Washington, DC with his family in April 2017 and joined Mālama I Ke Ola Health Center as the Chief Medical Officer shortly after. He holds board certifications from the American Board of Internal Medicine in both Internal Medicine and Infectious Disease.
He completed medical school at the St. John’s National Academy of Health Sciences, Bangalore, India in 2006. He then completed an Internal Medicine residency at the University of Connecticut Health Center, Farmington, CT as well as an Infectious Disease fellowship at the University of Maryland Medical Center, Baltimore, MD. His focus and passion in clinical care include HIV treatment and prevention (including PrEP), Hepatitis B and C management, LGB care, transgender affirming care, and substance use disorder treatment (including medication assisted treatment).
As the previous CMO at Mālama I Ke Ola Health Center, he was passionate about helping the organization grow in principles of Trauma Informed Care, in an awareness about social determinants of health and their impact on health and wellness, in a multidisciplinary team-based approach, as well as person-centered approach to patient care, and finally in engagement of patients as leaders of their own care. He also promotes Joy in Practice, psychological safety, continuous learning, and growth of local leadership for the staff at the health center because he believes staff who both enjoy and are proud of their work give the best care to our patients.
In his free time, he enjoys traveling, exercising, reading, cooking, and gardening. He also takes any opportunity available to explore the beautiful island of Maui on hikes or to get out on the water either on his paddle board or with his local canoe club.
Andrew Van Wieren MD, FACP
Chief Medical Officer
Dr. Van Wieren joined the Mālama I Ke Ola team in 2022 as Chief Medical Officer. Andrew most recently served as Chief Medical Officer at Esperanza Health Centers, a federally-qualified health center in Chicago with about 80 medical and behavioral health providers and about 50,000 unique patients. While at Esperanza, Andrew helped: lead significant clinical and program expansion, guide the organization through an electronic health record transition, develop and implement COVID-19 response, and helped Esperanza consistently achieve top-notch clinical quality of care.
Andrew is passionate about health equity, clinical and operational quality, and care team redesign. He graduated from the Warren Alpert Medical School at Brown University and completed his residency at Brigham and Women’s Hospital Primary Care Internal Medicine Program at Harvard Medical School. Some of his awards and affiliations include the Alpha Omega Alpha Honor Society, Gold Humanism Honor Society, and National Health Service Corps Scholar.
Andrew is excited to join the Mālama ‘ohana, learn about Hawaiian culture, and share life on Maui with his wife and 2 children.
Monique van der Aa
Chief Financial Officer
Monique joined the Executive Team of Mālama I Ke Ola Health Center in August 2018 and brings 19 years of extensive FQHC experience in financial management, operations, electronic practice management systems and medical records, data collection and analysis.
Monique was born in Christchurch, New Zealand where she earned her Bachelor of Commerce majoring in Accountancy in 1985. The following year Monique joined Ernst & Young as an auditor and remained there until she became a Chartered Accountant. Soon thereafter, Monique left New Zealand and worked in various accounting roles in Canada, Australia and New Caledonia. She had the good fortune to move to Hawaii in 1996 and has lived here ever since.
When not working, Monique enjoys cycling, swimming, yoga and hiking with family and friends.
Chief Operating Officer
Cassie was born and raised in Arkansas before moving to Hawaii in 2008. She has been with Mālama I Ke Ola Health Center since 2013, where she previously served as Assistant Chief Financial Officer, and is currently serving as the Chief Operating Officer.
Prior to her career in health care, she held various positions in the supply chain/logistics industry, and has over 16 years of business administration experience to include data, accounting, financial, and economic reporting and analysis, database management, project management, planning and forecasting, process improvement, as well as budget and operational management. She also has extensive knowledge and experience working with data and statistical analysis, as well as market and economic research.
Cassie holds a Bachelor of Science degree in Finance and Investment Management as well as a Master of Business Administration from the University of Arkansas, a Master of Health Administration from Louisiana State University, and is currently pursuing a Doctorate degree in Health Sciences at A.T. Still University. She is also a member of the American College of Healthcare Executives.
When Cassie isn’t working or studying, she enjoys cooking and going to the beach with her husband, Chance, daughter, Abigail, and Golden Retriever, Mauka.
Linda Kay Whitney, SPHR, SHRM-SCP
Chief Human Resources Officer
Linda Kay is Mālama I Ke Ola Health Center’s Chief Human Resources Officer. She holds dual certification as a Senior Professional in Human Resources (SPHR) and Society of Human Resource Management-Senior Certified Professional (SHRM-SCP) with over 30 years in Human Resources in Hawaii and California. She has been on Maui since 2001. Linda Kay’s HR leadership roles have been in community and education services, medical device, pharmaceutical, health care, and hospitality organizations. She volunteers for SHRM Hawaii and serves on various committees. Prior to entering the HR field, Linda Kay was an accountant.
Linda Kay supported Mālama I Ke Ola Health Center from May 2016 through June 2017 as a human resources consultant and joined the clinic as HR Director in August 2018. Her degrees are in Management from University of Phoenix and Santa Barbara City College respectively.
“To find joy in work is to discover the fountain of youth.” Pearl S. Buck