2024-2025 AAHWC Board of Directors

Angeline David Brauer, DrPH, MHS, RDN

Executive Director

Dr. Brauer has served as the Health Ministries Director for the North American Division of Seventh-day Adventists since 2016.   She holds a Doctor of Public Health (DrPH) degree in Nutrition from Loma Linda University School of Public Health and a Master of Health Science (MHS) in Epidemiology from the Johns Hopkins Bloomberg School of Public Health.  She previously worked at the Seventh-day Adventist Guam Clinic as wellness director and dietitian, and at Johns Hopkins as a senior research assistant.

Ernie Medina, Jr., DrPH, NBC-HWC, ACSM-EP-C


Dr. Medina completed his Masters in Public Health and Doctorate in Public Health from Loma Linda University. For the next 21 years, he honed his wellness coaching skills working in the Health Education Department at Beaver Medical Group in Redlands, CA, focusing on weight loss, diabetes, smoking cessation, stress management, and employee wellness. In 2014, he returned to Loma Linda as faculty and is nationally board-certified health and wellness coach through the National Board of Health and Wellness Coaches.

Rick Mautz, PT, MS

Past President

Rick is a retired Physical Therapist with his masters in Human Biology from Loma Linda University. He is currently the health ministry director of the Rocky Mountain Conference. His past experience includes Weimar Institute’s NEWSTART program and Hartland Institute of Health and Education. He established the Lifestyle Medicine Department at Feather River Hospital in Paradise California, where he realized the missing element of ongoing support that health coaching provides. He received his coaching training through the Wellcoaches and founded the lay coaching training called Health Partners.

Bianca Radut

Vice President of Education

Bianca graduated from the University of California Davis with a Bachelors in Global Disease Biology. As a volunteer for a student-run free clinic in the small town of Knights Landing in rural California, she saw first-hand the details of how scarce health resources can be in isolated communities. She also participated in multiple research projects, all of which were closely related to human health and physiology. She has worked as an undergraduate major advisor at UC Davis for over three years and was certified as a Health and Lifestyle Coach in December 2020.

Jonathan Brauer

Vice President of Membership

Jonathan graduated from Andrews University with a Bachelor’s in Computer Information Systems and from the University of Maryland University College with a master’s in software development management. He works for the General Conference of Seventh-day Adventists as a Software Development Manager. After spending several years figuring out his own health issues he became trained as a Functional Diagnostic Nutrition Practitioner which uses functional medicine testing to detect hidden stressors and natural drug-free healing protocols.

Lillian Simon, BSN, RN, NBC-HWC

Vice President of Communications
Lillian is a Registered Nurse, a National Board-Certified Health & Wellness Coach, and a certified DPP Lifestyle Coach for the CDC’s National Diabetes Prevention Program. She coaches clients on managing chronic diseases and teaches clinicians how to implement health coaching into their practices. Periodically, she is a guest speaker at Southern Adventist University, where she shares study tips on how to pass the NBHWC exam. Lillian wholeheartedly believes that health coaching is the how of medical missionary work.

Uche Mekowulu

Coaching Representative

Uche is a Master Certified Health Coach dedicated to inspiring healthy lifestyle habits to promote improved health in clients. He is the founder of Newlifeology, working one on one with clients to help them develop and execute their wellness visions, and work through obstacles standing in their way. Uche conducts seminars, workshops, and group coaching sessions.


David Baer

NAD Treasury Advisor

David serves as Controller for the North American Division Treasury Office.


General Conference Advisor

Dr. Katia Reinert serves as Associate Health Ministries director for the General Conference of the Seventh-day Adventist World Headquarters. She is a board certified Family Nurse Practitioner and Public Health Clinical Nurse Specialist. She holds a Bachelor of Science in Nursing from Washington Adventist University, a Master of Science in Nursing from Catholic University of America and a Doctor of Philosophy (PhD) in Nursing from Johns Hopkins University.  Dr. Reinert has a heart for ministry, and a passion for mission and global health.