Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Stephen Hayden, CRNA

Certified Registered Nurse Anesthetist in Wausau, WI · enumerated 2006.

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

National Provider Identifier

1891716239

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Registry record

Entity type Individual (Type 1)

Name Stephen Hayden

Credential CRNA

Sex Male

Practice address 425 Pine Ridge Blvd, Suite 211, Wausau, WI, 54401

Phone (715) 845-5505

Fax (715) 848-2884

Enumeration date Jul 21, 2006

Last updated in NPPES Nov 17, 2022

Taxonomy & licenses

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 146543030 (WI) Primary

CRNA · Certified Registered Nurse Anesthetist: An advanced practice nurse specializing in anesthesia care. About the CRNA credential

Other identifiers

Identifier	Type	State	Issuer
89611	Other	WV	SECURITY HEALTH MEDICAID
391330887	Other	WI	HEALTH EOS
44327400	Other	WI	MANAGED HEALTH CARE
HAYDEN	Other	WI	WPS
89611	Other	WI	SECURITY HEALTH PLAN
44327400	Medicaid	WI	-
P000113379	Other	WI	MEDICARE RAILROAD
004021305	Other	WI	MEDICARE - HUMANA GOLD
391330887	Other	WI	ASSOCIATES FOR HEALTHCARE

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.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Stephen Hayden?

Stephen Hayden is registered in NPPES with the primary taxonomy of Certified Registered Nurse Anesthetist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-11-17.