Dr. Sarah F. Cassidy is the founder of Cascade Health Clinic, established in 2016 with a deep passion for bringing high-quality, patient-centered naturopathic care to the Sky Valley community. Licensed as a naturopathic physician in Washington, Arizona, Alaska, and Kansas, Dr. Cassidy specializes in providing individualized, integrative treatments in Sultan, Washington. Her approach blends the best of modern medicine with natural healing practices, focusing on the unique needs of each patient.
Dr. Cassidy received her Doctorate of Naturopathic Medicine from Sonoran University of Health Sciences in Arizona. Also, Dr. Cassidy received her undergraduate degree in Nutrition Communication Cum Laude from Arizona State University.
Above all, Dr. Cassidy adheres to the Six Principles of Naturopathic Medicine as well as the safest and most effective treatments available for all patients. In addition, Dr. Cassidy formulates unique comprehensive and individualized treatments for all patients that include non-toxic protocols and explains the risk-benefit of each option. In addition, she also utilizes both western and eastern medicine at times to ensure that each patient receives excellent care.
Dr. Cassidy has extensive training in both traditional and holistic modalities, allowing her to provide truly integrative care tailored to each patient’s unique needs. Her areas of expertise include clinical nutrition, homeopathy, botanical medicine, and lifestyle-based therapies, all of which she incorporates into comprehensive treatment plans designed to support long-term health and healing. By combining evidence-informed natural therapies with a deep understanding of the body’s innate ability to heal, she helps patients address the root causes of illness rather than simply managing symptoms.
Her clinical interests include pain management, women’s health, environmental medicine, and preventive care. She is particularly passionate about helping patients navigate chronic conditions, hormonal imbalances, and environmental exposures through safe, effective, and individualized treatment approaches.
Dr. Cassidy was featured on TLC’s 90 Day Diaries, where she showcased her medical expertise by providing care for a prominent individual in a widely viewed episode, filmed on-site at Cascade Health Clinic.
Dr. Cassidy is deeply committed to fostering the next generation of healthcare professionals. In addition to offering externship opportunities at Cascade Health Clinic for students in the Sno-Isle TECH Medical Assisting program, she also serves as a preceptor for medical students in the Naturopathic Medicine program at Bastyr University. In these roles, Dr. Cassidy provides hands-on clinical training and mentorship, helping students gain valuable real-world experience and grow in their careers.
In addition to her clinical practice, Dr. Cassidy has contributed to the naturopathic profession by helping develop questions for the NPLEX, the licensing exam for naturopathic physicians.
Dr. Cassidy has also written and published on important health topics, including a recent article on Long COVID in adolescents and immune healing, featured in the Naturopathic Doctor News & Review (NDNR).
Outside of the clinic, Dr. Cassidy enjoys spending time in nature. She can often be found hiking, camping, and exploring the outdoors, which reflects her belief in the importance of balance, wellness, and connection to the natural world.
Your Individualized Naturopathic Care Begins Now
At Cascade Health Clinic we hope to provide you with exceptional naturopathic care that is above and beyond.
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