Suggest an Edit Name* Categories* Doctor Hospital Pharmacy Add category State* Locality* ZIP* Street address* Phone* Website Opening hours Monday: 09:00 am — 05:00 pm Tuesday: 09:00 am — 05:00 pm Wednesday: 09:00 am — 05:00 pm Thursday: 09:00 am — 05:00 pm Friday: 09:00 am — 05:00 pm Saturday: 09:00 am — 03:00 pm Company description Dr. Gregory Alan Derfus located in the city of Eau Claire, state Wisconsin. The legal address of the Doctor 1221 Whipple St. Directions to the Doctor Dr. Gregory Alan Derfus can be found on our interactive map. Ask your questions by calling 7158385222 on workdays.</br></br></br>NPI number: Data not provided</br>Provider's gender: Data not provided</br>Practice names: Data not provided</br>Board certifications: American Board of Internal Medicine Certification in Internal Medicine American Board of Internal Medicine Sub-certificate in Gastroenterology (Internal Medicine) Your comments (not for publishing) * — Required information Dr. Gregory Alan Derfus - Eau Claire ← View details 1221 Whipple St, Wisconsin, Eau Claire, 54703, Eau Claire, Wisconsin 54703 7158385222