Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alison M Ainsworth, FNP

Family Nurse Practitioner in New York, NY · enumerated 2006.

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

National Provider Identifier

1871506121

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Registry record

Entity type Individual (Type 1)

Name Alison M Ainsworth

Credential FNP

Sex Female

Practice address 16 E 16th St, New York, NY, 10003

Phone (212) 924-7744

Fax (212) 691-2786

Enumeration date Aug 15, 2006

Last updated in NPPES Sep 23, 2008

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F334614 (NY) Primary

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

Other identifiers

Identifier	Type	State	Issuer
F334614	Other	NY	LICENSE
00903700	Medicaid	NY	-

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 1871506121 active?

Yes, as of the latest NPPES snapshot, NPI 1871506121 is active (record last updated 2008-09-23).

How do I verify Alison Ainsworth's NPI record?

Cross-check NPI 1871506121 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 2008-09-23.