Meet our Providers

When you make an appointment at Bastyr University Clinic, you are choosing naturopathic doctors (NDs) who are among the most respected in their field.

Bastyr University Clinic offers a Team Care model, which means that you’ll meet with one of our ND faculty experts along with one or two doctoral-level student clinicians. Your ND will oversee every aspect of your diagnosis and treatment plan, remaining closely involved during every visit. Your team’s combined training and experience means you'll receive a comprehensive evaluation of your health concerns.

Lilian Au, ND

Dr. Lilian Au ND

Dr. Au is an adjunct faculty member at Bastyr University California who has special interest in women's health and infant and children's medicine.

Dr. Au graduated from Southwest College of Naturopathic Medicine in Tempe, Arizona, and received the Daphne Blayden Student Award for her academic achievement and compassionate nature in helping others. She completed three years of residency through National College of Natural Medicine in Portland, Oregon. She earned a bachelor degree in biology and chemistry at Indiana University, Bloomington. Before medical school she was a research associate for two years in the Child Health Research Program at Children’s Memorial Hospital, where she helped to conduct studies on clinical and public-health issues that affect children’s health.

Dr. Lily serves as the secretary and membership committee chair for the California Naturopathic Doctors Association. She is a member of the Pediatric Association of Naturopathic Physicians.

Matthew Cavaiola, ND

Dr. Matthew CavaiolaDr. Cavaiola is a clinic supervisor and assistant professor at Bastyr University California with a special interest in men’s health, endocrinology, pain management and digestive disorders. Dr. Cavaiola uses many naturopathic modalities in his practice including clinical nutrition, intravenous and injectable vitamin therapy, prolotherapy and hormone replacement therapy.

Dr. Cavaiola is a graduate of Southwest College of Naturopathic Medicine in Tempe, Arizona, where he received a Doctor of Naturopathic Medicine in 2008. He also has a Master of Science in Acupuncture from the Phoenix Institute of Herbal Medicine and Acupuncture; and from the University of Delaware he earned a Master of Science in Human Nutrition and a Bachelor of Arts in Biology.

Dr. Cavaiola’s passion for naturopathic medicine comes from both an upbringing where he was taught to pursue a natural way of life and through personal health struggles that he overcame and continues to enjoy learning and teaching about each day. Dr. Cavaiola focuses on an individualized, patient-centered approach to medicine and he believes in working with his patients as a team, assuring they are active participants in their own health care.

Amy Chadwick, ND

Dr. Amy Chadwick

Amy Chadwick, ND, is a clinic supervisor at Bastyr University Clinic with a specialty in systems biology and integrative physiology. She works with patients of all ages to prevent and treat imbalance and disease.

Dr. Chadwick graduated in 2006 from National University of Natural Medicine in Portland, Oregon. She interned in both women’s medicine and chronic and neurodevelopmental disease utilizing biotherapeutic drainage. Her practice in Alaska served families in a small community where she honed her diagnostic skills and learned to trust the innate power of the body to heal. Dr. Chadwick utilizes therapies rooted in ancient and modern clinical wisdom such as nutrition, lifestyle modification and botanical medicine, as well as the short-term utilization of higher intervention therapies as needed to restore balance.

Continuing to pursue systems theory medicine, Dr. Chadwick has studied ayurvedic medicine and has completed a fellowship in endobiogenic medicine, a systems biology model rooted in modern scientific principles of integrative physiology. Recognizing the endocrine system as the manager of physiology allows for a profound understanding of why repeated or intense stressors, emotions and belief patterns can lead to imbalance and disease, and provides a map for effective treatment.

Dr. Chadwick empowers her patients to embrace wellness, offering tools to thrive on a daily basis. She works to cultivate this important clinical skill in her students as well.

Jennifer Cornell, ND

Dr. Jennifer Cornell

Dr. Cornell is a clinic supervisor and adjunct faculty member at Bastyr University California practicing family medicine with a special interest in pediatric and adolescent medicine. She has a particular focus on injury treatment and prevention, ADHD, allergies, skin conditions, digestive complaints and eating disorders.

As a ballet dancer for over two decades (10 years company dancer), Dr. Cornell experienced first-hand the critical importance of healthy eating and lifestyle habits for meeting the demands of high-level performance. She likes working with young athletes to develop and maintain a strong and flexible body and mind.  

Dr. Cornell received her Doctor of Naturopathic Medicine degree from Bastyr University in Kenmore, Washington, in 2015. Dr. Cornell also received a Bachelor of Science in Biology from the University of California at San Diego and a certificate in Oriental Body Therapy and TuiNa at Pacific College of Oriental Medicine in San Diego, California. 

Dr. Cornell believes in working with the body's innate ability to heal itself and seeks to address the root cause of illness and injury. She uses natural and integrative medicine to support the body’s healing processes. Dr. Cornell helps patients address challenges common to a demanding schedule, such as poor nutrition, overtraining and frequent fatigue. Together, Dr. Cornell and her patients develop a personalized plan for success in being healthy and active.

Dr. Cornell is a member of the American Association of Naturopathic Physicians, as well as the California Naturopathic Doctors Association. She also speaks Portuguese and French.

Cyndi Hope, ND

Dr. Cindy HopeDr. Hope is a faculty supervisor at Bastyr University Clinic and assistant professor and academic lead faculty member at Bastyr University California. She has a special interest in the areas of Mind-Body medicine, stress reduction using biofeedback, craniosacral therapy, hydrotherapy, authentic movement, and botanical medicine.

Dr. Hope graduated from Bastyr University in Kenmore, Washington with her doctorate in Naturopathic Medicine. Prior to relocating to San Diego, she completed a teaching fellowship at Bastyr University in Washington as well. She also holds a Bachelor of Arts in Psychology with a concentration in Behavioral Neuroscience from Fairleigh Dickinson University in Madison, New Jersey. 

Dr. Hope has a passion for teaching. She believes in presenting options for patients and empowering them to find their own path to wellness.

Jacob Hwang, ND, First Year Resident

Jacob Hwang, NDDr. Hwang is a first-year ND resident at the Bastyr University Clinic who applies integrative approaches using botanical medicine, therapeutic nutrition, preventive medicine and lifestyle counseling.

His clinical interests include gastrointestinal concerns, cardiovascular disease, endocrine abnormalities, immunological disorders, rheumatic conditions, musculoskeletal injuries, integrative oncology, urological problems, and preventive medicine.

Dr. Hwang received his Doctor of Naturopathic Medicine degree from Bastyr University in Kenmore, Washington, in June of 2016. He also holds a Bachelor of Science in biology from the University of Hawaii at Manoa. He completed two years of student rotations at the Bastyr Center for Natural Health in Seattle, Washington, and completed preceptorships with three Seattle area physicians, focusing on rheumatology, sports and exercise medicine, and emergency medicine.

Dr. Hwang believes in treating the person as a whole being. He enjoys utilizing the latest evidence with the art of medicine to provide the best patient care and clinical expectations. He likes to establish the foundations of health with his patients and incorporate appropriate interventions. He also enjoys working in collaboration with other medical providers, and can serve as adjunctive support in an integrative care team.

Dr. Hwang is a Member of the California Naturopathic Doctors Association.

Stefan Kasian, ND, PhD

Image

Dr. Kasian is adjunct faculty at Bastyr University California with a special interest in psychology, brain health, mind-body medicine and pain relief. Dr. Kasian received his Doctor of Naturopathic Medicine degree from Southwest College of Naturopathic Medicine, in Tempe, Arizona, where he received special training in biofeedback, neurofeedback and bio-energetic medicine. He also holds a PhD in Psychology from Saybrook University in San Francisco, California, and received his Bachelor of Arts in Computer Science from Duke University with a certificate in Science, Technology, and Human Values.

As a researcher, Dr. Kasian has collaborated with various institutions including Duke University Medical Center, Rockefeller Institute in New York City, University of Virginia, The Monroe Institute and Arizona State University. He received co-authorship in physiology and behavior for contributing to a study on the effects of binaural auditory beats on vigilance performance and mood. More recently, he has begun collaborating on the first online study of mood and pain that featured designer music created by Grammy Award-winning producer Barry Goldstein.

Dr. Kasian is passionate about brain health, ageless rejuvenation, pain relief and metabolic optimization. He incorporates healing systems of nature and science with mind-body medicine and bio-energetic techniques to help patients restore the health of their body and empower them to evolve to their greatest potential.

Sabrina Koperski, ND, First Year ResidentSabrina Koperski, ND

Dr. Koperski is a first-year ND resident at Bastyr University Clinic with a focus on treating the underlying cause using the foundations of naturopathic medicine, nutrition and lifestyle counseling. Her clinical interests include family medicine, women’s health, chronic illness including autoimmune disease, and cancer.

Dr. Koperski received her Doctor of Naturopathic Medicine degree from Bastyr University in June 2016 as part of the inaugural class. She holds a Bachelor of Science in Biochemistry and Cell Biology from the University of California, San Diego. Prior to becoming a naturopathic doctor, Dr. Koperski engaged in research on statins and non-cardiac endpoints, particularly in regards to adverse effects, Gulf War illness, autism and aging.

Dr. Koperski focuses on determining and treating the underlying cause with natural therapeutics and empowering her patients by being an active part in their healing journey. She focuses on setting a strong foundation including diet and lifestyle, and supporting it with botanical medicine, physical medicine, as well as mind-body medicine. Dr. Koperski has a strong background in research and evidence based medicine, which she balances with a healthy dose of reconnecting patients to their bodies using dream interpretation.

Dr. Koperski is a member of the Institute for Functional Medicine, the International College for Human Nutrition and Functional Medicine, the International Association for the Study of Dreams, the American Association of Naturopathic Physicians, and the California Naturopathic Doctors Association.

Chad Larson, ND, DC

Dr. Larson is a clinic supervisor and adjunct faculty member at Bastyr University California with special interest in orthopedics, sports medicine, Dr. Chad Larsonendocrinology and environmentally-induced chronic disease.

He holds a doctor of Naturopathic Medicine degree from Southwest College of Naturopathic Medicine and a doctor of Chiropractic degree from Southern California University of Health Sciences, graduating with honors. He is a certified clinical nutritionist and a certified strength and conditioning specialist.

His practice integrates naturopathic medicine with cutting-edge laboratory testing and diagnostic imaging. This integrative approach to medicine includes diet and nutritional counseling, prolotherapy, regenerative injection therapy (RIT), chiropractic manipulative therapy, bio-identical hormone balancing, intravenous (IV) nutritional therapy, and natural alternatives to prescription drugs.

Ryan McNally, ND, MS, PAc

Chief Medical Officer

Ryan McNally, ND

Dr. McNally is the Chief Medical Officer at Bastyr University Clinic and a core faculty member in the School of Naturopathic Medicine at Bastyr University California. His clinical interests include primary care medicine with a special interest in preventive medicine, disease risk assessment, and therapeutic lifestyle interventions that can prevent disease. Other interests include mental health disorders, autoimmune disorders, weight loss, diabetes, digestive disorders, cardiovascular disease, cancer and skin disorders. He uses nutritional and herbal medicine, exercise and lifestyle prescriptions, pharmaceutical therapy, minor surgery, and injection therapy while focusing on the underlying causes of disease.
 
Before coming to Bastyr, Dr. McNally was a primary care provider at Alice Internal Medicine in Alice, Texas. He has worked as a primary care doctor in a variety of settings and completed an integrative medicine residency in the Yale University-Griffin-University of Bridgeport Residency Program. He holds a Doctor of Naturopathic Medicine from Southwest College of Naturopathic Medicine in 2008 and a Master of Science in physician assistant studies from Northeastern University in 2013.

Nikodemas McNulty, ND

Dr. McNulty is a faculty supervisor at Bastyr University Clinic with a focus on adjunctive oncology care and nutritional IV therapy. His clinical interests include primary care, adjunctive oncology care, anti-aging,weight loss, chelation, and treating chronic health conditions such as gastrointestinal and neurological diseases. Dr. McNulty earned a Doctor of Naturopathic Medicine degree from Bastyr University in Kenmore, Washington. He also completed a one-year residency at Bastyr University California. He earned a bachelor of medical science from University of South Florida and has also studied massage therapy at the Bellevue Massage School in Washington, earning his license in massage practice. Dr. McNulty emphasizes the concepts of treating the cause of a problem, supporting the body's own healing process and encouraging patients to create their own wellness even in the face of illness.

Emma Norton, ND

Dr. Emma NortonDr. Norton is the clinic lead faculty and resident supervisor at Bastyr University Clinic and an assistant professor at Bastyr University California. Her clinical interests include endocrine disorders (including thyroid disease and diabetes), cardiovascular disease, metabolic syndrome, mental health issues, autoimmune disease, allergies, intestinal disorders and women’s health. She is also certified in First Line Therapy, a proven program that incorporates personal lifestyle medicine involving changes such as healthy nutrition, nutritional protocols, exercise and stress management to prevent or reverse chronic disease.

Previously, Dr. Norton was a supervisor in the University of Bridgeport College of Naturopathic Medicine teaching clinic for 10 years, overseeing a variety of shifts including general naturopathic medicine, geriatrics, women’s health and community medicine.

Dr. Norton holds a Doctor of Naturopathic Medicine from University of Bridgeport College of Naturopathic Medicine in Bridgeport, Connecticut, and a BS in biology from the University of New Hampshire in Durham, New Hampshire.

Debbie Novick, DC

Dr. Debbie Novick

Dr. Novick is a clinical supervisor at Bastyr University Clinic. In her own private practice for over 20 years, Dr. Novick focuses on physical medicine and women’s health, and is a leading expert on Hashimoto’sThyroiditis.

Dr. Novick received her Doctor of Chiropractic degree from Educated Life Chiropractic College West in Hayward, California. Dr. Novick continued her postgraduate studies in functional and integrative medicine, specializing in women’s health care, with an emphasis on lifestyle and dietary changes. She uses a variety of complementary, alternative and integrative medicine (CAM) strategies and tools to restore health and balance to her patients. Dr. Novick works integratively with MDs and gynecologists who refer their patients to her for more specialized autoimmune support. Her goal is to empower each person to understand what journey they must embark on to achieve and maintain health and wellness for life.

Dr. Debbie believes in embracing the journey of life. She knows that the best way to embrace that journey is in a healthy and whole body. To do that, she uses a variety of (CAM) strategies and tools to restore health and balance to her patients.

Lisa Portera-Perry, DCLisa Portera-Perry

Lisa Portera-Perry, DC, is a clinical supervisor at Bastyr University Clinic in the physical medicine department. She is also an adjunct faculty member at Bastyr University California, teaching courses in Integrative Nutrition and Physical Medicine.

Dr. Portera-Perry received her medical education from the Southern California University of Health Sciences, College of Chiropractic. She has 30 years of experience in clinical practice, combined with 15 years of educating physicians of all disciplines in the principles and clinical application of functional medicine. She is a passionate advocate of functional medicine and its application for patients presenting with a wide variety of structural, neuro-muscular and autoimmune related chronic illness.

Before coming to work at Bastyr, Dr. Portera-Perry owned and operated private clinical practices as well as being the principle integrative doctor of chiropractic in several cutting edge integrative medical center settings, including Sutter Health Hospitals and Integrative Medical Center’s Institute for Health and Healing at the Marin and Santa Rosa locations in Northern California.

Maya Roth, ND

Dr. Maya RothDr. Roth is a clinical supervisor at Bastyr University Clinic, where she leads naturopathic medical students on Team Care shifts. Dr. Roth specializes in family medicine and takes a special interest in pediatrics, digestive health, endocrine balance, utilizing nutritional supplements and botanicals, dietary modification, lifestyle counseling, homeopathy and injection therapies. She also utilizes bio-identical hormone replacement to address patients’ health challenges.

Dr. Roth earned a doctor of naturopathic medicine degree from the University of Bridgeport College of Naturopathic Medicine in Bridgeport, Connecticut. She was one of only two national recipients of the American Association of Naturopathic Physicians’ STAIR Scholarship and Residency, and completed her residency training at Comprehensive Health Services in Phoenix, Arizona. She earned a bachelor of arts in biology and economics from Brandeis University in Waltham, Massachusetts. Previous to arriving at Bastyr, Dr. Roth practiced naturopathic medicine in Los Angeles, California, for six years at the Chiropractic Center of Los Angeles.

Shidfar Rouhani, DC, ND

ImageDr. Rouhani is a clinician at the Bastyr University Clinic with extensive training in sports medicine, injectable therapies (intravenous therapy, heavy metal chelation, prolotherapy, mesotherapy/non-surgical cosmetic medicine), and resolving chronic pain conditions.  He has helped many professional athletes in the NFL (National Football League) and NHL (National Hockey League) reach their peak performance through his integrative approach to medicine.

Dr. Rouhani utilizes all modalities of naturopathic medicine including herbal medicine, homeopathy, physical medicine, clinical nutrition, traditional Chinese medicine (TCM), and hydrotherapy, among others. He has 17 years of teaching experience and currently serves as a core faculty member at Bastyr University California, where he teaches Physical Medicine 3-4, Integrative Immunology Pathology and Infectious Diseases 1-6, and Integrative Case Studies 4-6.

Dr.  Rouhani believes that you and he can achieve your health goals through a mutual partnership.  “Patients don’t like to be pushed or rushed to do something by their medical doctor.  It’s much better when I listen to you and we work together as a team on your health.”

Heather Sandison, ND

Heather Sandison, NDDr. Heather Sandison is a clinical supervisor and adjunct clinical faculty member at Bastyr University Clinic who has special interests in women’s health,mental health, environmental medicine and complex chronic disease.

Dr. Sandison received her Doctor in Naturopathic Medicine from Bastyr University in Kenmore, Washington in 2013. Prior to medical school, Dr. Sandison studied marine biology, pre-medicine and holistic health at San Francisco State University. She also has an extensive background in physical medicine as a licensed massage therapist and Egoscue-trained postural therapist.

Before working at Bastyr, Dr. Sandison built a thriving naturopathic clinical practice in Encinitas, California. She continues to train with experts in the field of toxicology and environmental medicine including Dr. Bill Kellas, Dr. Ritchie Shoemaker and Dr. Bill Rea. Dr. Sandison has also completed additional training in treating mental health disorders using the power of nutrients with Bill Walsh, PhD.

Dr. Sandison is a member of the American Association of Naturopathic Physicians, the California Naturopathic Doctors Association and the American Academy of Environmental Medicine.

DeJarra K. Sims, ND

Dr. DJ SimsDr. “DJ” Sims is a clinic supervisor at Bastyr University Clinic and a core faculty member at Bastyr University California. She has special interest in diseases of the skin, thyroid, heart disease and digestive disorders as well as training in prolotherapy and addiction medicine.

She received her Doctor of Naturopathic Medicine degree from Southwest College of Naturopathic Medicine in 2009 and holds her Bachelor of Science in Biology from Prairie View A&M University.

She believes that her role as a doctor is to inspire her patients to live more healthy and fulfilled lives. She believes that the “art of medicine” is in the ability of the doctor to meet the patient where they are and give them an understanding of what it truly means to have optimal health. If you couple this knowledge with support and encouragement, patients will make the necessary lifestyle changes to improve their quality of life.

Dr. Sims has authored many articles and has recently published the book Your Healthiest Life Now: Your Key to Total Health Transformation.

Nazanin Vassighi, ND

Dr. VassighiDr. Vassighi is a supervisor at Bastyr University Clinic and an assistant professor at Bastyr University California with a special interest in utilizing homeopathy as the primary treatment for acute and chronic conditions. She is one of a few naturopaths in the nation who has completed a specialized residency focused on homeopathic training, making her part of an elite group of highly skilled homeopaths. She treats a wide variety of conditions but is particularly interested in treating digestive disorders, including GERD, IBS, SIBO, Crohn's and ulcerative colitis. 

Dr. Vassighi received her Doctor of Naturopathic Medicine degree from Southwest College of Naturopathic Medicine in 2010 and completed residencies there in both general medicine and homeopathy. She also holds a Bachelor of Arts in Molecular, Cellular and Developmental Biology as well as a Bachelor of Arts in French Language, both from the University of Colorado, Boulder.

She believes that the combination of natural medicine and a patient-centered approach are integral to true healing. She likes to collaborate with patients to make health care decisions together and encourages them to take an active role in their health care.

Peter Wannigman, ND, RPh

Peter Wannigman

Dr. Wannigman is an adjunct faculty supervisor at Bastyr University Clinic. His unique combination of credentials has given him extensive experience utilizing bio-identical hormone replacement therapies (BHRT) to help manage many problems including thyroid, menopause, PMS, low libido, fatigue, insomnia, weight management, ‘Low-T’ and age management.

Born and raised in Minnesota, he graduated from pharmacy school at South Dakota State University in Brookings, South Dakota. He relocated to California, launching a 25-year pharmacy career as a retail pharmacist with Longs Drugs Stores in La Jolla and other San Diego locations. After practicing as a pharmacist for over a decade, he was drawn to naturopathic medicine and attended Southwest College of Naturopathic Medicine in Tempe, Arizona, receiving his doctorate in 2002.

As a valued doctor in a successful multidisciplinary integrative medical center in San Diego, he began his focus on BHRT as well as injection therapies (prolotherapy) for pain management, while concurrently maintaining his pharmacy career. Most recently he gained specialized experience as a compounding pharmacist, which further enhanced his knowledge and treatments with BHRT. He has a comprehensive understanding in the use of functional-specialty labs, which can aid in the assessment of dysfunctions that can create disease, as well as helping to guide successful hormone treatment therapies.

Dr. Wannigman’s compassionate and caring interest in his patients is evident in his personable, common sense approach that empowers patients to understand and embrace participation in the their plan of care. His unique background focuses on using natural healing modalities, and diet and lifestyle approaches to create distinct paths toward wellness and effective age management, while concurrently assessing opportunities for patients to reduce their reliance on pharmaceutical drug treatments.

Sunshine Weeks, ND

Image

Dr. Weeks is a faculty supervisor at Bastyr Clinic with a focus on family medicine, women's health, autoimmune disease, diabetes, anxiety and depression. Dr. Weeks believes in empowering patients to balance their lives using herbal medicine, homeopathy, counseling and nutrition. She encourages patients to seek fresh air, adequate exercise, social wellness, spirituality and their own purpose to achieve health.

Dr. Weeks is also an assistant professor in the Department of Botanical Medicine at Bastyr University California, where she teaches botanical medicine, including edible and medicinal wild plants of the coastal and desert regions. Dr. Weeks received her Doctor of Naturopathic Medicine degree from Southwest College of Naturopathic Medicine in 2006 and a Bachelor of Arts in Sociology and Anthropology from the University of Redlands. She is a member of the American Association of Naturopathic Physicians.

ND Training and Licensure

Licensed as primary care doctors in California, NDs view themselves as teachers, helping patients understand how to nurture their own health. Our licensed NDs have all graduated from four-year, in-residence, doctoral-level naturopathic medical schools recognized by the U.S. Department of Education and respective regional programmatic accrediting bodies. Throughout their training, NDs are educated in all of the same biomedical sciences as conventional medical students; in addition, ND students study holistic and nontoxic approaches to therapy with a strong emphasis on disease prevention and optimizing wellness.