Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Corinne Alyse Ellefsen

Social Worker in Mayfield, PA · enumerated 2019.

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

National Provider Identifier

1497308597

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Registry record

Entity type Individual (Type 1)

Name Corinne Alyse Ellefsen

Sex Female

Practice address 1300 Old Plank Rd, Mayfield, PA, 18433

Phone (570) 281-6222

Enumeration date Jul 18, 2019

Last updated in NPPES Jul 19, 2019

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License SW136306 (PA) 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 Corinne Ellefsen practice?

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

What is the NPI number for Corinne Ellefsen?

The National Provider Identifier (NPI) for Corinne Ellefsen is 1497308597, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-07-19.