Committee Members Bio

Current membership is 9 – 5 professional naturopathic doctors and 2 physician (MD/DO) members appointed by the Governor; 1 public member appointed by the Speaker of the Assembly; and 1 public member appointed by the Senate Rules Committee.

Name Classification Appointing Authority Appointment Date Term Expiration
Dara Thompson, N.D.
Professional Governor 06/08/2018 01/01/2022
Greta D’Amico, N.D.
Vice Chair
Professional Governor 06/08/2018 01/01/2022
Bruce Davidson, PhD Public Senate Rules Committee 08/15/2018 01/01/2022
Thomas Quinn, M.D. Physician Governor 12/26/2018 01/01/2022
Vera Singleton Professional Governor 07/16/2018 01/01/2022
VACANT Physician Governor TBA 01/01/2022
VACANT Professional Governor TBA TBA
Shirley Worrels Public Speaker of the Assembly 08/10/2018 01/01/2022
Minna Yoon, N.D. Professional Governor 07/16/2018 01/01/2022
Dara Thompson, N.D.

Dara Thompson, N.D.

Dara Thompson, N.D., received her bachelor’s degree in biology from the University of California at Santa Cruz and her doctorate in naturopathic medicine from The National College of Naturopathic Medicine in Portland, Oregon. After 5 years of clinical practice she completed a 1-year post-graduate training in Environmental Medicine. Dr. Thompson taught Anatomy and Physiology as well as Clinical Nutrition and the Hawaii College of Oriental Medicine for 9 years.

Dr. Thompson currently practices at Azzolino Chiropractic Neurology and Integrative Wellness in San Francisco. In this dynamic setting, she enjoys active collaboration with medical doctors and chiropractors. Dr. Thompson has been in practice since 2002 and her passion for medicine continues to grow. She combines the foundations of naturopathic medicine with her knowledge of environmental influences and genomic analysis to find solutions for complex medical conditions.

Dr. Thompson is currently the Acting Chair of the NMC and Former Chair of the NMC Formulary Subcommittee.

Dr. Thompson was appointed to the Committee by former Governor Brown in December 2015.
Greta D’Amico, N.D.

Greta Hauck D'Amico, N.D.

Greta Hauck D'Amico, N.D., received her Bachelor of Arts Degree in Social Science from UC Berkeley in 1990 and her Doctorate of Naturopathic Medicine (ND) from the Southwest College of Naturopathic Medicine and Health Sciences in 2004. She is currently President of the Four Rivers Naturopathic Clinic where she sees patients of all ages with her husband, Sandro D'Amico, ND, in Auburn. She utilizes several novel approaches to help her patients, including classical homeopathy, biotherapeutic drainage and European biological medicine, counseling and physical medicine.

Dr. D'Amico has been active in the California Association of Naturopathic Doctors since 2004 and has served the association as Legislative Lead. She is also a member of the American Association of Naturopathic Physicians and P.E.O., a philanthropic organization that raises money for women's education. She is multi-lingual and has lived and studied in Norway, France, Thailand and Costa Rica.

Dr. D’Amico was appointed to the Committee by former Governor Brown in December 2015.
Bruce Davidson, Ph.D.

Bruce N. Davidson, Ph.D.

Bruce N. Davidson, Ph.D. has held executive positions in healthcare performance improvement, quality analytics, and data governance for prominent healthcare delivery organizations in Southern California. With 40 years of experience in health services delivery and evaluation, Dr. Davidson currently consults to healthcare and human service organizations nationwide. He is also an Adjunct Assistant Professor in the Department of Health Policy and Management at the UCLA Fielding School of Public Health, where for nine years he taught the Quality Improvement course in the Executive Master of Public Health program. Dr. Davidson’s prior public service includes three annual appointments as a Member of the Board of Examiners for the national Malcolm Baldrige Performance Excellence Program.

Dr. Davidson earned his Ph.D. in Health Policy and Health Services Research and a Master's degree in Population and Family Health from the UCLA Fielding School of Public Health. He was a Pew Health Policy Fellow at RAND during his doctoral studies. He also has a Master’s degree in Social Policy and Planning from USC’s School of Urban & Regional Planning, and earned his BS from MIT.

Dr. Davidson was appointed by Senate Rules Committee in August 2018 as a public member.
Thomas G. Quinn, M.D.

Thomas G. Quinn, M.D.

Thomas G. Quinn, M.D. received his undergraduate degree in biochemistry and his medical degree, both, from the University of California, Davis. His cardiovascular specialty training was conducted at Stanford University.

Presently, Dr. Quinn is an interventional cardiologist with Sutter East Bay Medical Group (a large multispecialty group in the San Francisco Bay Area). He served on the board of his medical group for 9 years and during this time the group grew from 40 providers to over 300 providers. At this time, he serves as the chair of the Well-Being Committee tasked with the mission of decreasing clinician burnout and infusing a sense of Joy of Work for the now over 400 clinicians. For over two decades he has provided comprehensive cardiovascular care to thousands of patients in a large and diverse metropolitan community.

By bridging science and technology with the goal of making a healthy lifestyle easily achievable for all, Dr. Quinn is the cofounder of a medical service designed to make healthy eating simple and sustainable. To implement the vision, he assembled an expert team and serves as the CEO. Furthermore, he has taken to heart the messages he passionately conveys to his patients. He has a Chopra Center certification in meditation and he is a certified Vinyasa Yoga Instructor. Additionally, he is a martial arts instructor and has participated in numerous triathlon competitions. In his 50’s he successfully completed his first ironman event.

Dr. Quinn was appointed to the NMC by former Governor Brown in December 2018.
Vera Singleton, N.D., MBA

Vera Singleton, ND, MBA

Vera Singleton, ND, MBA, is an honored graduate of Southwest Naturopathic Medical College with publications in the FASEB Journal on cell activation and wound healing. She is an active member of the California Naturopathic Doctor’s Association, Alumni of the University of Michigan (B.S.) and Wayne State University (MBA).

Dr. Singleton’s practice is based in Lafayette, CA, where she enjoys assisting high performing professionals regain control of their health. For over 8 years, she has been successfully helping professionals burning the candles at both ends to restore their bodies holistically using philosophies of natural medicine and performance coaching to get empowered and productive again. As a MBA and former project manager, Dr. Singleton tailors her health programs for working professionals, so clients can find clarity and focus on what matter in life instead of worrying about health problems.

Dr. Singleton is an active member of the community appearing on local news outlets and keynoting in many community events. She was awarded East Bay Express’ 2018’s Best Doctor of the East Bay and has collected numerous awards in leadership over the years. In 2015 she organized and hosted one of the largest integrative fertility conferences in California.

Dr. Singleton was appointed to the NMC by former Governor Brown in July 2018.
Shirley Worrels

Shirley Worrels

Shirley Worrels, is a retiree. She served as Department Administrator for Kaiser Permanente from 1979 to 2014. During her tenure she managed the day to day and financial operations for the Psychiatry Dept. and several Primary Care departments. She implemented, coordinated and managed several organizational initiatives for Kaiser. Ms. Worrels received her undergraduate degree from Cal State Los Angeles and her graduate degree in psychology from Pepperdine University. In retirement Shirley is involved in many civic and community service endeavors.

Ms. Worrels was appointed to the Naturopathic Committee by Speaker of the Assembly in August of 2018 as a public member.
Minna Yoon, N.D.

Minna Yoon, ND, MSTOM

Minna Yoon, ND, MSTOM received her Bachelor of Arts in Biology from Washington University in St. Louis, Missouri in 1997, her Doctorate in Naturopathic Medicine from Bastyr University in Seattle, Washington in 2002, and her Master of Science in Traditional Oriental Medicine at Pacific College of Oriental Medicine in San Diego, California in 2004. For over 10 years, Dr. Yoon has been practicing at her clinic Bay Natural Medicine in San Francisco with an emphasis on treating adults with chronic illnesses, hormone imbalances, and digestive issues. She is also a licensed acupuncturist and Chinese herbalist.

Dr. Yoon served as the Legislative Chair for the California Naturopathic Doctors Association from 2009-2015 and was awarded “Doctor of the Year” by the California Naturopathic Doctors Association in 2013.

Dr. Yoon was appointed to the NMC by former Governor Brown in July 2018.