The doctors at Walnut Creek Naturopathic are trained in the art and science of natural health care at accredited medical colleges, and licensed by the state Bureau of Naturopathic Medicine. We recognize that the individual — body, mind, spirit — knows its own healing pathways, and we develop therapeutic programs for the individual that are designed to collaborate with natural healing. We are family doctors, trained to see patients of all ages and all conditions, and each of us is also trained and experienced in specialties such as integrative cancer care. We work with you to diagnose the underlying causes of disease, and restore optimal health. We emphasize education, prevention, and holistic treatment. If your condition requires an outside specialist we will refer you to one, and provide supportive care of the whole person while you are being treated by conventional targeted therapies.
We are thrilled to announce the arrival of our newest additions!
Dr. Castillo is a licensed naturopathic doctor and researcher. She is passionate about empowering patients through knowledge, helping them make educated decisions about their health care, with the goal of optimizing their well-being.
Dr. Castillo received her Doctorate of Naturopathic Medicine and a Masters of Acupuncture and Oriental Medicine from Bastyr University in Seattle, WA, followed by and an intensive immersion program in Traditional Chinese Medicine and Acupuncture in Chengdu and Shanghai, China.
Dr. Castillo completed a one-year residency in Primary Care at Emerald City Clinic in Seattle, WA, where she provided primary health care services to children and adults specializing in gastrointestinal health, women’s health, auto-immune conditions, hormonal imbalances, and supportive cancer care.
Dr. Castillo developed a keen interest in cancer care after close family members and friends received a diagnosis of Breast Cancer. She obtained her specialty in Naturopathic Oncology after completing a two-year residency at Cancer Treatment Centers of America® (CTCA) in Philadelphia, PA, where she also served as a Staff Naturopathic Doctor. During her almost five years at CTCA, Dr. Castillo provided integrative Naturopathic Medicine support to patients with early- and advanced-stage cancers, including solid tumors and blood cancers. She also cared for and participated in the development of integrative treatment protocols for patients undergoing stem cell transplantation.
She believes that complex disorders such as cancer and chronic diseases are best addressed utilizing novel therapeutic approaches that recognize the interconnectedness among genetic makeup, biochemistry, physiology, psycho-emotional-spiritual states, as well as environmental exposures and lifestyle patterns, that converge to create a state of imbalance or one conductive to health. Dr. Castillo believes in holistic approaches incorporating innovative therapeutic modalities, naturopathic and conventional, collaborating with patients and multidisciplinary medical professionals to develop comprehensive clinical treatment options that are transformative and effective.
Prior to pursuing a Naturopathic Medicine degree, Dr. Castillo earned a Bachelor of Science in Microbiology and a Master of Science in Biology from the University of Texas at El Paso (UTEP). She has conducted basic science research in microbiology and molecular biology at UTEP, Tufts University, and the National Institutes of Health, and has co-authored several articles published in scientific journals.
With her background in molecular biology, Naturopathic medicine and Traditional Chinese medicine, Dr. Castillo utilizes the wisdom of nature with modern scientifically supported treatment methods to make safe, innovative, and personalized recommendations to help patients achieve their health goals, maintain their quality of life, cultivate hope and a state of vitality during and after cancer treatment.
Dr. Castillo is a certified Fellow of the American Board of Naturopathic Oncology (FABNO); a member of the American Association of Naturopathic Physicians (AANP) and the Oncology Association of Naturopathic Physicians (OncANP).
When she is not tending to her patients, Dr. Castillo enjoys spending time with her husband exploring the outdoors hiking, biking, kayaking, or simply enjoying a relaxing walk in nature.
Dr. Castillo’s specialties include:
– Naturopathic Oncology
– Auto-immune Conditions
– Endocrine Disorders and Hormonal Imbalances
– Digestive Disorders and Food Sensitivity Testing
– IV Therapy and Injection Therapy
Dr. Zamecki is a licensed naturopathic doctor in the State of California and was previously licensed in Washington State. She earned her Doctorate of Naturopathic Medicine in 2013 from Bastyr University in Kenmore, Washington, after having earned a B.A. in Italian Studies and Humanistic Studies, with a specialization in East Asian Studies from McGill University. In addition to the core curriculum, she has done extensive additional training in botanical medicine, as well as training in Craniosacral Therapy and Visceral Manipulation, both gentle hands-on techniques.
Dr. Zamecki has since completed a residency with Dr. Mandy Gulla at Living Medical Arts, a family practice specializing in chronic infections with multiple locations in Western Washington. Subsequently, she spent over two years successfully treating patients in Chico, California, before recently moving back to her “hometown” of the Bay Area.
Dr. Zamecki enjoys and values the therapeutic benefit of developing a warm relationship with her patients. Her areas of special interest include endocrinology, rheumatology, and gastroenterology. Some of the conditions she treats include:
- Digestive Issues – GERD, IBS, Gastritis, Celiac Disease
- Endocrine Health – Hypothyroidism, Adrenal Dysfunction, PCOS
- Mental Health – Anxiety, Depression, Panic Attacks, PTSD
- Autoimmune Diseases – Hashimoto’s Thyroiditis, Rheumatoid Arthritis
In addition to treating specific conditions, Dr. Zamecki is dedicated to helping her patients optimize their overall health. She places emphasis on addressing the “foundations of health” – restful sleep, clean and nutritious diet, movement and exercise, time in nature, nurturing and supportive relationships, meaningful work, and time for play and creative pursuits. A healthy response to stress is also paramount in today’s modern society and is regularly addressed as part of treatment.
Dr. Zamecki is grateful for the opportunity to assist the members of her community and is thrilled to be back in the Bay Area. She is looking forward to working with her new patients at Walnut Creek Naturopathic, as well as continuing with her existing patients from Chico.
Dr. Barrett is a licensed naturopathic doctor who has always had a strong desire to be a healer. With a background in social work, psychology, and competitive sports, she first learned about naturopathic healing while volunteering at an AIDS orphanage in Africa in 2006.
Dr. Barrett loves to travel! She has lived in four different countries and had visited over thirty countries by the age of 27 before pursuing her degree in naturopathic medicine.
Having suffered from an undiagnosed severe gluten sensitivity until her late-twenties, Dr. Barrett has personal experience with a number of the symptoms that she is now passionate about balancing for her patients. Having lived with severe digestive complaints, extreme adrenal fatigue, migraines, anxiety, and depression, as well as femoral acetabular impingement and hip dysplasia that resulted in the replacement of both of her hips, Dr. Barrett has cultivated a deep relationship with the naturopathic principles, genomic therapies, and the injection therapies that assisted in her own personal healing journey. She now finds great motivation and joy in being able to help others navigate their own individual paths toward health.
Dr. Barrett graduated from The Boucher Institute of Naturopathic Medicine in 2011 and has extensive experience with a variety of specialty treatments including the use of ozone, prolotherapy, prolozone, neural therapy, neuroprolotherapy, and IV therapies. She also had the privilege of receiving formal medical training in oncology by Dr. Neil McKinney, one of the leading naturopathic doctors in naturopathic oncology. After graduating, she spent her first year working at Ocean Park Natural Therapies, a clinic that specialized in injury management before joining Synergy Natural Medicine Clinic in Monrovia, a very busy practice where she specialized in naturopathic oncology and gained an invaluable amount of experience in integrative cancer support, general practice, and IV therapies and ozone.
Dr. Barrett’s specialties include:
- Naturopathic Oncology (Including the integrative support of conventional cancer therapy, with a sub-specialty in breast cancer)
- Naturopathic Endocrinology (Including hypothyroid, Hashimoto’s, adrenal fatigue, and bioidentical hormone replacement therapy)
- Genomic Medicine (Multiple Certifications in Methylation and Other SNP Support)
- Women’s Health (Prevention and treatment of female-specific conditions including additional experience with the use of bioidentical hormones through the American Academy for Anti-Aging Medicine (A4M))
- Digestive Disorders and Food Sensitivities
- Autoimmune Disease
- Anxiety & Depression
- IV and Injection Therapy (Dr. Barrett is certified in intravenous and chelation therapy through the International IV Nutritional Therapy for Professionals)(IIVNTP)
Dr. Barrett is a member of the following organizations:
- Fellow of the American Academy of Ozonetherapy
- Board Member of the Board of Directors of the California Naturopathic Doctors Association
- The Oncology Association of Naturopathic Physicians (OncANP). More information about the role of naturopathic medicine in cancer care is available at the American Board of Naturopathic Oncology, www.fabno.org/about.html.
Dr. Corrine Wang, ND
Dr. Wang is a licensed Naturopathic doctor. She obtained her doctorate of Naturopathic medicine from Bastyr University, a leading accredited institution internationally recognized as a pioneer in natural medicine.
Prior to pursuing her interests in medicine, Dr. Wang received her bachelor’s degree of science in electrical engineering and computer science at the University of California at Berkeley. She worked in the semiconductor industry in San Jose, California, and in Shanghai, China.
With a penchant for health, psychology, teaching and a desire to work with people more directly, Dr. Wang decided to pursue naturopathic medicine upon returning from China. Dr. Wang is committed to assisting others achieve balance and wellness in their lives and creates individualized treatments to support each person’s unique healing process.
Dr. Wang has special interests in women’s health and hormone balancing and has pursued additional training in bioidentical hormones through the American Academy for Anti-Aging Medicine (A4M). She has also had training in intravenous therapy through the International IV Nutritional Therapy for Professionals (IIVNTP).
Dr. Wang’s specialties include:
- Menstrual irregularities including PMS, PCOS, and endometriosis
- Enhancing fertility through natural treatments
- Support for transitioning through menopause
- Bio-identical hormone replacement therapy
- Other endocrine imbalances – hypothyroidism, Hashimoto’s, adrenal fatigue, and weight concerns
- Food intolerances and digestive disorders
Dr. Wang also enjoys volunteering and working with underserved populations locally and internationally. She received a venture grant at Bastyr with two classmates to travel to and study different systems of medicines in Peru, working mostly with low-income families. Since coming back to California, she has completed a medical brigade to Nicarauga, providing primary care services using natural treatments to a local community on the island of Ometepe. Dr. Wang has also volunteered at Stanford Hospital, providing reiki to patients on the cancer ward as well as to physicians, nurses and other staff at the Stanford Cancer Care Center. We are excited to welcome Dr. Wang to the team of doctors at WCN to allow us to continue to provide outstanding care to our community. Outside of practicing, Dr. Wang enjoys traveling, dancing, backpacking, rock climbing, hiking, snowboarding, painting, and spending time with family and friends. Dr. Wang is a member of the American Association of Naturopathic Physicians (AANP) and California Naturopathic Doctors Association (CNDA).
Dr. Renee Choi, ND
Dr. Renee Choi is a licensed Naturopathic Doctor (ND) who earned her degree from Bastyr University in Seattle, Washington. Dr. Choi’s clinical specialties include mind-body medicine (biofeedback), diabetes, cardiovascular, and immune health. While the majority of her time at WCNI is spent administering IV therapies, she also holds certifications in craniosacral therapy and kinesiotaping.
After obtaining her undergraduate degree in nutritional sciences from Cornell University, Dr. Choi served as a research fellow at the National Center for Complementary and Alternative Medicine (NCCAM). Her research focused on the safety and efficacy of phytonutrients on prostate cancer – a subject she continued to research while at Bastyr University.
Outside her practice, Dr. Choi enjoys spending her time practicing yoga, cooking and traveling around the world. Dr. Choi is a member of California Naturopathic Doctor’s Association (CNDA) and American Association of Naturopathic Physicians (AANP).
We are pleased to welcome Dr. Choi back from her maternity leave during which time she gave birth to a healthy and beautiful son, Liam.
Gina Bowen received her Masters in Education at Mills College in Oakland, CA and her Bachelor of Arts in Human Development from California State University, Sacramento. She received her Health Coach certification from the Health Coach Institute and is currently in their Holistic MBA program. She has also received her Cancer Coach certification from BeatCancer.Org.
Gina has worked in the healthcare field for over 15 years ranging from non-profit to healthcare marketing mainly related to cancer. She has always wanted to help people become healthier and live to their fullest potential. She has a special interest in cancer and autoimmune conditions due to her own history and personal journey. Her father had colitis and was diagnosed with Stage IV colon cancer when she was 15. He passed 6 months later on Gina’s 16th birthday. Within a few years, due to the stress and trauma of her father’s loss and the demands of college, her health deteriorated and she was diagnosed with Lupus. She became interested in natural remedies and self-care and made the decision to change her lifestyle and diet which helped reverse the majority of her Lupus symptoms without the need to be on any of the prescribed medications from her doctors at the time (medications they had told her she would need to be on long-term). She still lead a busy life and hadn’t yet made the mind/body connection and still dealt with a handful of chronic health issues like insomnia, chronic fatigue, and IBS. Once she fully committed to herself, she became obsessed with health and wellness and the mind/body connection and decided to make the career change to pursue her calling as a health and wellness coach. At this time, she started seeing Dr. Heather and began her own health coaching program and has since reversed all of her chronic health issues and is thriving.
Gina is passionate about serving others and helping guide them through their own personal health transformations. She helps clients break down the barriers and understand the root cause of their health issues that prevent them from fully taking control of their health and caring for themselves in a gentle and nourishing way. She developed her signature program, The Mindful Solution™ which helps people transform their health, one mindful habit at a time without the overwhelm or confusion that often accompanies typical health related protocols.
She works in collaboration with her clients’ other health care practitioners to ensure the best care is being delivered. She is a compassionate, fully engaged coach that provides support, encouragement and accountability. She holds a safe space for her clients to personally grow so that they can achieve optimal mind/body health and improve their overall quality of life.
Gina’s specialties include support in the following areas:
• Autoimmune Disorders
• Weight Loss Resistance
• Digestive Issues
• Hormonal Imbalances
Gina lives in Pleasant Hill with her husband, two young children and their Golden doodle . She loves spending time with her family and close friends, enjoys the outdoors, yoga, meditation, weight training, reading, and learning (she’s a self-proclaimed “personal growth and development” nerd).
Maria Carr, Patient Care Manager
Maria has worked in the medical field since 1995. She became fascinated with naturopathic care and the body’s ability to heal itself. Other interests have lead her to study real estate and small business management. Although born in Japan, Maria grew up in southern California. She is fluent in Spanish and currently lives in the East Bay with her three daughters and Yorkie named Zacque. In her free time Maria enjoys traveling and relaxing.
Annette J. MacDonald, Office Manager
Annette is our office manager and is the friendly voice you hear when calling Walnut Creek Naturopathic to schedule your appointments. Although Annette has a varied background, that includes ergonomics, human resources, and business management, her first love has always been holistic medicine. Annette has a Bachelor’s Degree in Health Science and Health Care Administration as well as certifications in Holistic Nutrition and Health Ergonomics. Annette lives in the East Bay with her husband and her “furry” children Lulu and Blu, and enjoys long walks, reading and dining out with her husband.
Team Mascot Zen Frog has been our team mascot since 2009. It is our hope that he brings a sense of peace and humor to all who enter our space. Feel free to stop in and meet him anytime.