Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Irene Rebecca Fields, FNP

Family Nurse Practitioner in Bronxville, NY · enumerated 2008.

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

National Provider Identifier

1659558757

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Registry record

Entity type Individual (Type 1)

Name Irene Rebecca Fields

Credential FNP

Sex Female

Practice address One Mead Way /Sarah Lawrence College, Lyles House/Student Health Services, Bronxville, NY, 10708

Phone (914) 395-2350

Fax (914) 395-2640

Enumeration date Jan 31, 2008

Last updated in NPPES Jan 31, 2008

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F330371-1 (NY) Primary

FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP credential

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

Is NPI 1659558757 active?

Yes, as of the latest NPPES snapshot, NPI 1659558757 is active (record last updated 2008-01-31).

How do I verify Irene Fields's NPI record?

Cross-check NPI 1659558757 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-01-31.