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A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

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The overall average patient rating of Dr. Mark Duncan is Excellent. Dr. Duncan has been reviewed by 2 patients who have provided 0 comments. The rating is 4.5 out of 5 stars.

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Additional Information
Dr. Mark Howard Duncan MD is a male Family Practitioner and practices in Family Medicine.
Where does Dr. Mark H. Duncan practice?
Dr. Mark Duncan has 3 office locations.
Dr. Mark Duncan practices Family Medicine near Seattle, WA.
See Seattle Family Physicians.