Provider Demographics
NPI:1861465304
Name:DERFUS, GREGORY A (MD)
Entity Type:Individual
Prefix:
First Name:GREGORY
Middle Name:A
Last Name:DERFUS
Suffix:
Gender:M
Credentials:MD
Other - Prefix:
Other - First Name:
Other - Middle Name:
Other - Last Name:
Other - Suffix:
Other - Last Name Type:
Other - Credentials:
Mailing Address - Street 1:PO BOX 1510
Mailing Address - Street 2:
Mailing Address - City:EAU CLAIRE
Mailing Address - State:WI
Mailing Address - Zip Code:54702-1510
Mailing Address - Country:US
Mailing Address - Phone:715-838-5222
Mailing Address - Fax:
Practice Address - Street 1:1400 BELLINGER ST
Practice Address - Street 2:
Practice Address - City:EAU CLAIRE
Practice Address - State:WI
Practice Address - Zip Code:54703-5222
Practice Address - Country:US
Practice Address - Phone:715-838-5222
Practice Address - Fax:
Is Sole Proprietor?:No
Enumeration Date:2006-02-07
Last Update Date:2024-02-09
Deactivation Date:
Deactivation Code:
Reactivation Date:
Provider Licenses
StateLicense IDTaxonomies
WI28466207RG0100X
Provider Taxonomies
Primary?CodeTypeClassificationSpecialization
Yes207RG0100XAllopathic & Osteopathic PhysiciansInternal MedicineGastroenterology
Provider Identifiers
StateIdentifier IDID TypeIssuer
WI31522800Medicaid
WI31522800Medicaid
WI0021 20195Medicare ID - Type Unspecified