NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Joanne M Peterson, NP

Family Nurse Practitioner in Sussex, WI · enumerated 2005.

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

National Provider Identifier

1255335030

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Joanne M Peterson
Credential NP
Sex Female
Practice address N66w25201 County Highway Vv, Fast Care Clinic, Sussex, WI, 53089
Phone (262) 532-8691
Enumeration date Jun 9, 2005
Last updated in NPPES Jul 22, 2013

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 58398 (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
1255335030 Medicaid WI -
43859300 Other - MEDICAID

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

What is the NPI number for Joanne Peterson?
The National Provider Identifier (NPI) for Joanne Peterson is 1255335030, a Type 1 (individual) record in the CMS NPPES registry.
Where does Joanne Peterson practice?
The practice location on file with NPPES is in Sussex, WI. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-07-22.