NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ms. Heidi N. Keller, PA-C

Physician Assistant in Mequon, WI · enumerated 2009.

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

National Provider Identifier

1366679136

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Ms. Heidi N. Keller
Credential PA-C
Sex Female
Practice address Mequon, WI, 53092
Phone (262) 387-8200
Enumeration date Jun 18, 2009
Last updated in NPPES Mar 31, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 2437-23 (WI) Primary

Other identifiers

Identifier Type State Issuer
100005286 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

How do I verify Heidi Keller's NPI record?
Cross-check NPI 1366679136 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1366679136 active?
Yes, as of the latest NPPES snapshot, NPI 1366679136 is active (record last updated 2025-03-31).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-31.