Individual provider · Type 1 NPI

Sierra R. Guenther, MSN, FNP

Family Nurse Practitioner · Appleton, WI

NPI number 1316869407 Active

Practice location

3925 N Gateway Dr
Appleton, WI 54913-7863

Mailing address

3 Neenah Ctr
Neenah, WI 54956-3070

Specialties and licenses

TaxonomyCodeLicense
Family Nurse Practitioner Primary 363LF0000X18624 (WI)

Family Nurse Practitioner: Definition to come...

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About NPI 1316869407

Sierra R. Guenther, MSN, FNP's National Provider Identifier is 1316869407, issued on Jul 29, 2026. The primary taxonomy on file is Family Nurse Practitioner (363LF0000X), and the practice location is in Appleton, WI. The record was last updated on Oct 1, 2026.