NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Karen Ann Zahn, APNP

Family Nurse Practitioner in Suring, WI · enumerated 2005.

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

National Provider Identifier

1003898867

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Ms. Karen Ann Zahn
Credential APNP
Sex Female
Practice address 913 Main St, Suring, WI, 54174
Phone (920) 842-1147
Fax (920) 842-1160
Enumeration date Nov 17, 2005
Last updated in NPPES Mar 18, 2013

Taxonomy & licenses

163WG0000X General Practice Registered Nurse Nursing Service Providers · License 54392 (WI) Secondary
363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 734 (WI) Primary

Other identifiers

Identifier Type State Issuer
11014110 Medicaid WI -
1851477913 Other WI CMH NPI
1750412292 Other WI SPCC NPI
43854800 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 Karen Zahn practice?
The practice location on file with NPPES is in Suring, WI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Karen Zahn?
The National Provider Identifier (NPI) for Karen Zahn is 1003898867, 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 2013-03-18.