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

Helene S Nilsen, APRN

Child & Adolescent Psychiatric/Mental Health Registered Nurse in Hyde Park, VT · enumerated 2006.

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

National Provider Identifier

1821154600

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Registry record

Entity type Individual (Type 1)

Name Helene S Nilsen

Credential APRN

Sex Female

Practice address Hyde Park, VT, 05655

Phone (802) 888-6215

Fax (802) 888-9474

Enumeration date Dec 28, 2006

Last updated in NPPES Jul 8, 2007

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

Taxonomy & licenses

163WP0807X Child & Adolescent Psychiatric/Mental Health Registered Nurse Nursing Service Providers · License 1010010221 (VT) Primary

APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN credential

Other identifiers

Identifier	Type	State	Issuer
1005442	Medicaid	VT	-

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

What is the NPI number for Helene Nilsen?

The National Provider Identifier (NPI) for Helene Nilsen is 1821154600, a Type 1 (individual) record in the CMS NPPES registry.

Where does Helene Nilsen practice?

The practice location on file with NPPES is in Hyde Park, VT. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Ellen Halperin Mental Health Counselor · Hyde Park, VT NPI 1386705945 Eleanor Morrissey Mental Health Counselor · Hyde Park, VT NPI 1801957469 Kimberly Austin Puleio Clinical Social Worker · Hyde Park, VT NPI 1497812739 Julie Bomengen Mental Health Counselor · Hyde Park, VT NPI 1134273154 Kathryn Osborne Clinical Social Worker · Hyde Park, VT NPI 1265551147

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.