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

Kristina Gruenheid-Schwimmer

Specialist in Yaphank, NY · enumerated 2016.

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

National Provider Identifier

1669925574

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Registry record

Entity type Individual (Type 1)

Name Kristina Gruenheid-Schwimmer

Sex Female

Practice address Yaphank, NY, 11980

Phone (516) 658-9611

Enumeration date Jul 27, 2016

Last updated in NPPES Jan 18, 2017

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

Taxonomy & licenses

174400000X Specialist Other Service Providers 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

How do I verify Kristina Gruenheid-Schwimmer's NPI record?

Cross-check NPI 1669925574 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1669925574 active?

Yes, as of the latest NPPES snapshot, NPI 1669925574 is active (record last updated 2017-01-18).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-01-18.