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

Abigail Aaron, FNP

Family Nurse Practitioner in New York, NY · enumerated 2025 · practices at Icahn School of Medicine at Mount Sinai.

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

National Provider Identifier

1548125594

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Registry record

Entity type Individual (Type 1)

Name Abigail Aaron

Credential FNP

Sex Female

Practice address New York, NY, 10029

Phone (844) 733-7692

Enumeration date Dec 22, 2025

Last updated in NPPES Apr 15, 2026

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

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 357940 (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

What is the NPI number for Abigail Aaron?

The National Provider Identifier (NPI) for Abigail Aaron is 1548125594, a Type 1 (individual) record in the CMS NPPES registry.

Where does Abigail Aaron practice?

The practice location on file with NPPES is in New York, NY. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-15.