About
Dr. Andrew Chang, DO is the founder and sole physician at Bayberry Clinic in Portland, Oregon. He earned his Doctor of Osteopathic Medicine degree at Des Moines University. He completed his family medicine residency at MercyOne Medical Center in Waterloo, Iowa, and sub-specialized in palliative medicine at the University of Wisconsin. The American Board of Family Physicians certifies him in family medicine.
Dr. Chang brings osteopathic manipulative medicine into his practice for drug-free chronic pain relief. He has deep clinical interests in ADHD management, diabetes, menopause, hypertension, metabolic health, and urinary incontinence. He provides gender affirming care and LGBTQIA+ sexual health services, including kink-affirming care, in a fully judgment-free environment. He takes a trauma-informed approach with every patient. His guiding philosophy is straightforward: he makes time, he listens, and he treats people rather than symptoms. Bayberry Clinic has featured him in a segment on KOIN news.
Certifications
Conditions Treated
Who is Dr. Chang right for?
Dr. Chang is a strong fit for adults seeking a long-term primary care relationship built on trust. Patients managing chronic conditions like diabetes, hypertension, ADHD, or metabolic syndrome benefit from his thorough, unhurried approach. He serves LGBTQIA+ patients, including those seeking gender affirming care or kink-affirming sexual health services, in a safe and inclusive setting. Patients dealing with chronic pain find his drug-free osteopathic options valuable. Anyone who wants direct access to their physician and transparent, predictable pricing will feel at home at Bayberry Clinic.
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Frequently Asked Questions
Dr. Chang treats a wide range of primary care conditions. His clinical focus includes ADHD, diabetes, hypertension, menopause, metabolic syndrome, obesity, chronic pain, and urinary incontinence. He also provides STI screening, gender affirming care, and LGBTQIA+ sexual health services.
Yes. The American Board of Family Physicians certifies Dr. Chang in family medicine. He holds a Doctor of Osteopathic Medicine degree from Des Moines University and completed his residency at MercyOne Medical Center in Waterloo, Iowa.
Dr. Chang uses osteopathic manipulative medicine to address chronic pain without medication. This hands-on approach targets musculoskeletal causes of pain. Patients who prefer to avoid pharmaceuticals often seek him out specifically for this service.
Yes. Dr. Chang offers gender affirming care, LGBTQIA+ sexual health services, kink-affirming care, and STI screening. He maintains a judgment-free, trauma-informed environment for every patient regardless of identity or background.
Dr. Chang believes good medicine requires time and presence. He focuses on treating people rather than symptoms. His goal is to serve as both a skilled physician and a trusted partner in each patient's health journey.
Dr. Chang draws on his osteopathic background to offer hands-on manipulative treatments for pain and musculoskeletal issues. This training also shapes his whole-person view of health. He blends osteopathic techniques with modern medicine to give patients comprehensive, non-invasive options.
Yes. Dr. Chang offers virtual consultations and house calls for patients who need care outside the clinic setting. Patients can reach him directly by phone or message for follow-ups and urgent concerns.
Dr. Chang is passionate about building long-term relationships with patients. He sub-specialized in palliative medicine at the University of Wisconsin, which deepened his commitment to compassionate, whole-person care. His practice reflects a belief that every patient deserves a physician who truly knows them.
Doctor profile last updated April 10, 2026