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

Sarah E. Hopfer, M.S. EDUCATION

Q: What is the NPI number for Sarah Hopfer?

The National Provider Identifier (NPI) for Sarah Hopfer is 1023363975, a Type 1 (individual) record in the CMS NPPES registry.

Specialist in Spring Valley, NY · enumerated 2012.

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

National Provider Identifier

1023363975

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Registry record

Entity type Individual (Type 1)

Name Sarah E. Hopfer

Credential M.S. EDUCATION

Sex Female

Practice address Spring Valley, NY, 10977

Phone (845) 425-2828

Fax (845) 425-2828

Enumeration date Jul 17, 2012

Last updated in NPPES Jul 17, 2012

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

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 811103 (NY) Primary

Other identifiers

Identifier	Type	State	Issuer
811103	Other	NY	NEW YORK STATE OF EDUCATION

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 Hopfer 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 Hopfer?

The National Provider Identifier (NPI) for Sarah Hopfer is 1023363975, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-07-17.