Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Elizabeth Hannah Grefrath, LMSW

Social Worker in Newark, NY · enumerated 2018.

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

National Provider Identifier

1417426818

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Registry record

Entity type Individual (Type 1)

Name Mrs. Elizabeth Hannah Grefrath

Credential LMSW

Sex Female

Practice address 703 E Maple Ave, Newark, NY, 14513

Phone (585) 402-3904

Enumeration date Nov 15, 2018

Last updated in NPPES Nov 15, 2018

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 0939661 (NY) 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

What specialty is Elizabeth Grefrath?

Elizabeth Grefrath is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-11-15.