Gregory Derfus, MD

Gastroenterology

20+ years in practiceNPI: 1861465304Licensed in WI

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Credentials & Recognition

Specialties

Gastroenterology

NPI sub-specialties

Internal Medicine, Gastroenterology207RG0100X

Practice Signals

Editorial signals beyond credentials. Patient transparency over opacity. See methodology.

Mid-Level (PA/NP) Use

Doctor-led visits

Years in Practice

20+ years

Estimated from NPI enumeration date

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Frequently Asked Questions about Dr. Gregory Derfus, MD

Where does Dr. Gregory Derfus, MD practice?+
Dr. Gregory Derfus, MD practices in Wisconsin, WI. 1400 BELLINGER ST EAU CLAIRE, WI 547035222.
What is Dr. Gregory Derfus, MD's phone number?+
Dr. Gregory Derfus, MD's practice phone is 715-838-5222. Office contact information is verified on the PBCMMG profile.
What does Dr. Gregory Derfus, MD specialize in?+
Dr. Gregory Derfus, MD's primary specialty is Gastroenterology.
Is Dr. Gregory Derfus, MD board certified?+
Board certification status for Dr. Gregory Derfus, MD has not been verified in the data sources PBCMMG uses (ABMS, state medical boards). The PBCMMG profile shows their current credential set.
How long has Dr. Gregory Derfus, MD been practicing?+
Dr. Gregory Derfus, MD has been in active practice for 20+ years, based on NPI enumeration and state licensing records.
What is Dr. Gregory Derfus, MD's NPI number?+
Dr. Gregory Derfus, MD's National Provider Identifier (NPI) is 1861465304, registered in the federal NPPES registry.

Profile maintained by Palm Beach County Medical Media Group, Inc. | Data verified from public registries (NPPES, ABMS, state medical boards). Methodology · Editorial Standards

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