R. Derrick D. Knowles, MD

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Dr. R. Derrick Knowles is a board-certified family medicine physician in Vancouver, WA. In his practice, Dr. Knowles emphasizes a healthy diet and exercise, along with prevention and screening, which he believes can make all the difference in a patient's health. He views himself as a health advisor and provides his patients with all the available information to help them make the best decisions.