Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ALEXANDRA JEFFERY LMHC
NPI 1619512910
Counselor - Mental Health in Locust Valley, NY

Q: What is Alexandra Jeffery's NPI number?

The NPI number for Alexandra Jeffery is 1619512910. It was assigned to this individual provider in the NPPES registry on November 10, 2019.

Q: What is Alexandra Jeffery's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Q: When was this NPI record last updated?

The NPPES record for Alexandra Jeffery was last updated on September 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since November 10, 2019

24 THE GLN, LOCUST VALLEY, NY 11560(315) 719-2417 Get Directions Write a Review

NPPES record last updated: September 3, 2026. Verified against the NPPES registry weekly; last sync: September 06, 2026.

Record update history: Sep 3, 2026, Nov 10, 2019 (2 updates tracked since 2019).

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About Alexandra Jeffery Lmhc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ALEXANDRA JEFFERY LMHC (NPI 1619512910) is an individual mental health provider in Locust Valley, New York, licensed in Florida (16734) and active in the NPI registry since November 2019.

NPPES Registry Identity

NPI1619512910

Entity TypeIndividualFemale

Primary Taxonomy101YM0800X

Provider Legal NameALEXANDRA JEFFERYCredential: LMHC

Location Address24 THE GLNLocust Valley, NY 11560-2212

Mailing Address24 The GlnLocust Valley, NY 11560-2212

Phone(315) 719-2417

Sole ProprietorNo

Enumeration DateNovember 10, 2019

Last NPPES UpdateSeptember 3, 20262 updates tracked since enumeration

NPPES CertifiedSeptember 3, 2026

✔ NPI 1619512910 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers

Taxonomy Code101YM0800X

Licenses✔ Licensed in FL · 16734✔ Licensed in NY · 010347

Also ListedCounselor · ProfessionalTaxonomy 101YP2500X · License LC11162 (MD)

24 THE GLN, Locust Valley, NY 11560

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.Insurance ›

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Alexandra Jeffery's NPI number?

The NPI number for Alexandra Jeffery is 1619512910. It was assigned to this individual provider in the NPPES registry on November 10, 2019.

Where is Alexandra Jeffery located?

Alexandra Jeffery practices at 24 The Gln, Locust Valley, NY 11560. The listed phone number is (315) 719-2417.

What is Alexandra Jeffery's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

What insurance does Alexandra Jeffery accept?

Health plans from UnitedHealthcare list Alexandra Jeffery as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Alexandra Jeffery was last updated on September 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.