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Dr. Brendan Tennefoss


Brendan has a passion for integrated medicine and specializes in peptide therapy.  He enjoys functional medicine, primary care, and regenerative medicine, while pairing alternative therapies with modern medicine to enhance patient's lives.


Dr. Demetria Tennefoss


Demetria is passionate about women's health and hereditary cancer genetics. She enjoys working with women to optimize health and is dedicated to preventative health care via screening patients for hereditary cancers.

Dr. Brendan and Dr. Demetria are nurse practitioners.  Both attended Vanderbilt University School of Nursing in Nashville, Tennessee where they obtained their Master's of Science in Nursing and then their Doctorate of Nursing Practice.  As nurse practitioners, each provider diagnoses, prescribes, and treats acute and complex conditions.  Both providers see patients ages 13 and older.  Together they have over 11 years treating patients.


Brendan worked as a nurse practitioner at a Federally Qualified Health Center in Oregon practicing primary care then transitioned to palliative medicine.  Later he be studied regenerative medicine with a focus in human allograft therapy and became proficient in joint injections. He currently works in primary care and functional medicine and is certified as an applied functional medicine coach with the School of Applied Functional Medicine. Brendan previously attended the University of Washington in Seattle, where he obtained his Bachelor's degree in Biology (Physiology). 


Demetria worked as a nurse practitioner in women's health in Oregon and continues to do so in Washington State. She has earned certification in hereditary cancer genetics through the City of Hope's comprehensive program and continues to work on expanding screening access to patients. Demetria earned her Associate's Degree in Radiological science and worked as a radiology technician for five years. She attended Eastern Tennessee State University, where she obtained her Bachelor's degree in Health Science. 


AGPCNP-BC - Adult-Gerontology Primary Care Nurse Practitioner Board Certified by ANCC

ACHPN - Advanced Certified Hospice & Palliative Nurse by HPCC

WHNP - Women's Health Nurse Practitioner

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