Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Joelle Underwood, FNP

Family Nurse Practitioner in Walton, NY · enumerated 2008.

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

National Provider Identifier

1871770511

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Registry record

Entity type Individual (Type 1)

Name Joelle Underwood

Credential FNP

Sex Female

Practice address 2 Titus Place, Walton, NY, 13856

Phone (607) 865-2400

Fax (607) 865-7305

Enumeration date Jan 24, 2008

Last updated in NPPES Jun 17, 2025

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F335119 (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 1871770511 active?

Yes, as of the latest NPPES snapshot, NPI 1871770511 is active (record last updated 2025-06-17).

How do I verify Joelle Underwood's NPI record?

Cross-check NPI 1871770511 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-06-17.