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

Sarah Hatkoff, LMSW

Social Worker in Spring Valley, NY · enumerated 2020.

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

National Provider Identifier

1972107357

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Registry record

Entity type Individual (Type 1)

Name Sarah Hatkoff

Credential LMSW

Sex Female

Practice address Spring Valley, NY, 10977

Phone (845) 351-0300

Fax (845) 351-0323

Enumeration date Nov 25, 2020

Last updated in NPPES Nov 25, 2020

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

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 110557 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Sarah Hatkoff practice?

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

What is the NPI number for Sarah Hatkoff?

The National Provider Identifier (NPI) for Sarah Hatkoff is 1972107357, 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 2020-11-25.