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

Katie Anne Willcockson, M.D.

Pediatrics Physician in New Berlin, WI · enumerated 2015.

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

National Provider Identifier

1326433301

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Registry record

Entity type Individual (Type 1)

Name Katie Anne Willcockson

Credential M.D.

Sex Female

Practice address New Berlin, WI, 53151

Phone (262) 432-7599

Fax (262) 432-7694

Enumeration date Apr 6, 2015

Last updated in NPPES Jul 21, 2021

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

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 10100590-1205 (UT) Secondary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 75410-20 (WI) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
1326433301	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

Is NPI 1326433301 active?

Yes, as of the latest NPPES snapshot, NPI 1326433301 is active (record last updated 2021-07-21).

How do I verify Katie Willcockson's NPI record?

Cross-check NPI 1326433301 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-07-21.