Gregory A Derfus is a Gastroenterology Physician based in Eau Claire, WI and is specialized in Gastroenterology. Gregory A Derfus practices in Eau Claire, WI and has the professional credentials of MD. The NPI Number for Gregory A Derfus is 1861465304 and holds a License No. 28466 (Wisconsin).
The current practice location address for Gregory A Derfus is 1400 Bellinger St, Eau Claire, WI and can be reached out via phone at 715-838-5222.
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