About
Dr. Jay S. Campbell, DO has served patients across the Willamette Valley for nearly two decades. He earned his Doctor of Osteopathic Medicine degree from Western University of Health Sciences in Pomona, California. The American Board of Family Medicine granted him board certification in Family Medicine. He currently pursues a fellowship in functional medicine through the Institute for Functional Medicine.
Dr. Campbell holds memberships in the Institute of Functional Medicine, the American Academy of Family Physicians, the Oregon Academy of Family Physicians, and the Oregon Medical Association. He is passionate about gastrointestinal health, hormonal dysfunction, environmental medicine, and the root-cause investigation of chronic illness. He developed deep skills in osteopathic manual medicine, using palpation and detailed patient histories to guide his clinical thinking. Outside the office, Dr. Campbell lives with his wife Becki, their four children, and two golden retrievers named Aslan and Hazel. His family enjoys camping, hiking, skiing, and exploring the Pacific Northwest.
Education & Training
Medical School
Western University of Health Sciences, Pomona, California
Fellowship
Functional Medicine Fellowship (in progress), Institute for Functional Medicine
Certifications
Conditions Treated
Who is Dr. Campbell right for?
Dr. Campbell is a strong fit for adults seeking root-cause investigation of chronic or complex conditions. Patients with gastrointestinal disorders, hormonal imbalances, metabolic syndrome, or environmental toxicity benefit most from his approach. He also works with patients managing chronic fatigue, anxiety, depression, ADHD, or neurodegenerative conditions. Adults interested in advanced therapies such as IV nutrition, hyperbaric oxygen, or prolotherapy find a broad clinical toolkit here. He does not treat chronic pain patients or prescribe pain medications.
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Frequently Asked Questions
Dr. Campbell treats a wide range of chronic and complex conditions. His focus areas include gastrointestinal disorders such as SIBO, IBD, Crohn's disease, and celiac disease. He also treats hormonal and endocrine dysfunction, metabolic syndrome, diabetes, fatty liver disease, chronic fatigue, anxiety, depression, ADHD, and neurodegenerative conditions including Alzheimer's and Parkinson's disease. Environmental concerns like heavy metal toxicity and toxic mold exposure also fall within his scope.
Yes. Dr. Campbell holds board certification in Family Medicine through the American Board of Family Medicine. He earned his osteopathic medical degree from Western University of Health Sciences in Pomona, California. He currently pursues an additional fellowship in functional medicine through the Institute for Functional Medicine.
Dr. Campbell treats each patient as biologically unique. He uses detailed patient histories, palpation, and functional testing to investigate the root causes of illness rather than managing symptoms alone. His training in osteopathic medicine informs his hands-on clinical style, and he integrates botanical medicine, nutritional counseling, and advanced therapies alongside conventional care.
Yes. Dr. Campbell performs osteopathic manipulation therapy, known as OMT or OMM. Basic OMT is part of the DPC membership. Extended OMT sessions carry an additional fee. He also offers trigger point injections, prolotherapy, and prolozone injections for musculoskeletal concerns.
Dr. Campbell offers an extensive range of advanced therapies. These include hyperbaric oxygen therapy up to 3 ATA, IV nutrient infusions, injectable NAD+, chelation and chezone therapy, ultraviolet blood irradiation with ozone, PEMF therapy with the Bemer Mat, and nasal specific treatments. He also performs ozone gas treatments and hormone pellet placement.
Yes. Dr. Campbell provides comprehensive women's health services. These include gynecological exams, breast exams, birth control counseling, diaphragm fitting, and bioidentical hormone replacement therapy. He also treats menopause and adrenal and reproductive hormonal dysfunction.
Yes. Dr. Campbell's family medicine training covers care across all ages. The DPC membership includes well-child appointments and routine check-ups for younger patients.
Dr. Campbell holds active membership in the Institute of Functional Medicine, the American Academy of Family Physicians, the Oregon Academy of Family Physicians, and the Oregon Medical Association.
No. Base Camp Functional Medicine does not accept chronic pain patients and does not prescribe or manage pain medications. Patients seeking chronic pain management should look for a provider who specializes in that area.
Doctor profile last updated April 10, 2026