Dr. David Chang, ND, L.Ac.

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Dr. David Chang, ND, L.Ac.

Dr. David Chang is a board-licensed naturopathic physician and acupuncturist. He completed his six-year medical training and internship at the National College of Natural Medicine, where he received extensive training in Naturopathic primary care and Classical Chinese Medicine. His passion for medicine stemmed from his experience volunteering at a community clinic, where he witnessed the devastation caused by lack of access to care and poor health. Dr. Chang continued post-graduate training by completing a one-year residency here under Dr. Ilana Gurevich.

As an active athlete his whole life, Dr. Chang has taken a great interest in sports medicine and pain management. He knows the toll it can take on a person when their life is riddled with chronic pain and injuries. Dr. Chang wants to help people regain their quality of life and pursue an active, productive lifestyle.

Dr. Chang takes a patient-centered, individualized approach to every patient’s problems. As both a naturopathic physician and acupuncturist, Dr. Chang utilizes his unique skills to combine conventional medical diagnostic techniques along with Naturopathic and Chinese energetic perspectives. He always looks to pinpoint the root cause of the problem and never forgets the importance of addressing body, mind, and spirit.

Dr. Chang believes that patients should be well informed and take an active role in their own health care. He emphasizes education as well as involving the patient in creating a realistic treatment plan that will work for them. Dr. Chang utilizes a variety of conventional medical, naturopathic, and Chinese medicine treatments to accommodate every patient, including prolotherapy injections, Platelet Rich Protein (PRP) injections, Ozone therapy, Nasal Specific technique, Western and Eastern herbs, homeopathy, acupuncture, nutrition counseling, hydrotherapy, specialized diets, fasts, and detox.

Dr. Chang spent his childhood in Taipei, Taiwan, and Ashland, Oregon. He attended college in Portland and has loved living in this city for the last 10 years. He is fluent in English, Mandarin, and Taiwanese. In his spare time, he loves to play basketball, tennis, watch movies and is a guilt-free foodie.


  • Portland State University, Honors College: Bachelors of Science in Health Studies
  • National College of Natural Medicine: Naturopathic Doctor and Masters of Oriental Medicine
  • Prolotherapy training with the American Osteopathic Association Prolotherapy Regenerative Medicine (AOAPRM) and individual training with Dr. Tom Ravin, MD
  • Ozone Injection Certification Training with the American Academy of Ozonetherapy under Dr. Frank Shallenberger, MD

Some Conditions Dr. Chang treats include:

Chronic/acute pain: Back pain, knee pain, meniscus/collateral ligamentous injuries, Osgood Schlatters, patellar instability, shoulder pain, rotator cuff injuries, neck pain, headaches, migraines, jaw pain, ankle pain, plantar fasciitis, carpal tunnel syndrome, tennis/golf elbow, hand pain, osteoarthritis, hip pain, sciatica, neuralgia.

Digestive/GI health: Irritable Bowel Syndrome, ulcers, Crohn’s Disease, Ulcerative Colitis, Celiac’s disease, food intolerance, allergies, chronic diarrhea or constipation, chronic nausea, acid reflux/GERD, hepatitis, candida/yeast overgrowth, gall bladder disease.

Cardiopulmonary: High blood pressure, high cholesterol, heart failure, stroke, asthma, pneumonia, emphysema, bronchitis, Lung Cancer

Neurological: Stroke, Migraines, Bells Palsy, Carpal Tunnel, nerve pain, Chronic Lyme disease

Endocrine/hormone: Diabetes, hypo/hyperthyroid, adrenal fatigue, Cushings

Genitourinary: acute urinary infections, cystitis, Benign Prostatic Hyperplasia, prostate cancer.

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