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Dr. Greg Nigh, ND, LAc

Naturopathic Doctor

Dr. Greg Nigh co-founded Immersion Health in 2014 with Maria Zilka, NTP. Dr. Nigh is a graduate of the National College of Natural Medicine, where he completed both the Naturopathic Doctor (ND) program and the Master of Science in Oriental Medicine (MSOM) program concurrently. Prior to studying naturopathic medicine, he attended the University of Notre Dame, where he received his Bachelor’s in English and then completed a Master of Humanities program at Arizona State University.

Prior to his work at Immersion Health, Dr. Nigh co-founded Nature Cures Clinic in 2001. It was during his early years of work there that he developed his interest and passion for researching and implementing alternative cancer therapies. It was also at Nature Cures Clinic that Dr. Nigh began collaboration with Maria Zilka, which spanned his last 5 years of work there.

Dr. Nigh is widely respected in the naturopathic profession. He has spoken several times at the annual convention of the American Association of Naturopathic Physicians on topics as diverse as naturopathic treatment of strokes, the use of hypnosis in clinical practice, and the use of energy medicine in the treatment of anxiety and depression.  He has also spoken at the national conference of the Oncology Association of Naturopathic Physicians on cancer cell metabolism.

Dr. Nigh is a prolific reader, researcher and writer. He contributed a chapter to the upcoming two-volume Foundations of Naturopathic Medicine textbook, and has published articles, book reviews, essays, and even short stories. Topics of deep interest and ongoing exploration range from evolutionary biology, epigenetics and the politics of science, to cosmology, metaphysics, zen philosophy, current events and, of course, the biology and physiology of cancer.

Dr. Nigh (he prefers “Greg”) works very hard to be easily accessible to every patient in the treatment program. He spends a great deal of time with every patient, always attempting to have a complete understanding of each individual, their personal circumstances and challenges, and the best strategy for implementing the appropriate treatment program.

Dr. Nigh is a member of the following professional societies:



Regence/BCBS, Cigna, MODA, Pacific Source, Axis, Liberty Health Share, Providence, United Health Care

Please note that the front desk cannot check benefits for you. Please call your insurance if you have questions about coverage and fill out our insurance verification from below.


Cost of Services

New Patient (NP) Appointment

$315 (Including TOS Disc.)

NP Phone Appointment


Genetic Analysis


Standard Follow Up (FU)

$148.50 (Including TOS Disc.)


Schedule with Dr. Greg Nigh

Dr. Nigh offers 15 minute free consults to prospective patients! Call the front desk to schedule (503) 445-7767

Please note that when scheduling new patient appointments online with Dr. Nigh a deposit of the total cost of your appointment (Either $300 or $315) will be collected at the time of scheduling. If you are planning on using insurance for your appointment that deposit will be refunded to you on the day of your appointment. If you are not using insurance, that deposit will be used as a prepayment for your appointment. 
All appointment requests must be approved by the front desk. If you are scheduling a new patient appointment the front desk will be calling you within 1 business day of your request to collect said deposit. If you do not answer, your request can be held for 48 hours from request time.