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

Gregory Joseph Geurts

Certified Registered Nurse Anesthetist in Green Bay, WI · enumerated 2023.

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

National Provider Identifier

1366214595

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Registry record

Entity type Individual (Type 1)

Name Gregory Joseph Geurts

Sex Male

Practice address Green Bay, WI, 54311

Phone (877) 229-0273

Fax (920) 288-4863

Enumeration date Oct 23, 2023

Last updated in NPPES Apr 21, 2026

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

Taxonomy & licenses

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 15865-33 (WI) Primary

163W00000X Registered Nurse Nursing Service Providers · License 259482-30 (WI) Secondary

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 1366214595 active?

Yes, as of the latest NPPES snapshot, NPI 1366214595 is active (record last updated 2026-04-21).

How do I verify Gregory Geurts's NPI record?

Cross-check NPI 1366214595 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 2026-04-21.