NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Susan K Ethun, NP

Nurse Practitioner in Reedsburg, WI · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1821099813

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Susan K Ethun
Credential NP
Sex Female
Practice address 2000 N Dewey Ave, Reedsburg, WI, 53959
Fax (608) 524-0842
Enumeration date Aug 2, 2005
Last updated in NPPES Mar 31, 2008

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 2407-033 (WI) Primary
NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

Other identifiers

Identifier Type State Issuer
41183800 Medicaid WI -

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Susan Ethun practice?
The practice location on file with NPPES is in Reedsburg, WI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Susan Ethun?
The National Provider Identifier (NPI) for Susan Ethun is 1821099813, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-03-31.