Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Steven P Sullivan, APNP

Nurse Practitioner in Eau Claire, WI · enumerated 2005.

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

National Provider Identifier

1770566879

Verified

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Registry record

Entity type Individual (Type 1)

Name Steven P Sullivan

Credential APNP

Sex Male

Practice address 2809 E Hamilton Ave, Suite 107, Eau Claire, WI, 54701

Phone (715) 834-1555

Fax (715) 835-0263

Enumeration date Nov 22, 2005

Last updated in NPPES Jun 12, 2012

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 714-030 (WI) Primary

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

Where does Steven Sullivan practice?

The practice location on file with NPPES is in Eau Claire, WI. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Steven Sullivan?

The National Provider Identifier (NPI) for Steven Sullivan is 1770566879, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Douglas Atkins Family Medicine Physician · Eau Claire, WI NPI 1851328967 Shahin Shahnia Internal Medicine Physician · Eau Claire, WI NPI 1598938946 Mechelle Spears Home Health Aide · Eau Claire, WI NPI 1558247130

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-06-12.