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

MRS. ANN M LEMONIUS LMHC
NPI 1821230806
Counselor - Mental Health in Ossining, NY

Active since April 06, 2009
81 CROTON AVE, OSSINING, NY 10562(914) 373-0744 Get Directions Write a Review

NPPES record last updated: August 4, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Aug 4, 2026, Jul 3, 2019 (2 updates tracked since 2019).

About Mrs. Ann M Lemonius Lmhc NPPES

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

MRS. ANN M LEMONIUS LMHC (NPI 1821230806) is an individual mental health provider in Ossining, New York, licensed in New York (004106) and active in the NPI registry since April 2009.

NPPES Registry Identity

NPI1821230806
Entity TypeIndividualFemale
Primary Taxonomy101YM0800X
Provider Legal NameMRS. ANN M LEMONIUSCredential: LMHC
Location Address81 CROTON AVEOssining, NY 10562-4206
Mailing Address3 Germay Dr Ste 4Wilmington, DE 19804-1127
Phone(914) 373-0744
Sole ProprietorYes
Enumeration DateApril 6, 2009
Last NPPES UpdateAugust 4, 20262 updates tracked since enumeration
NPPES CertifiedAugust 4, 2026
✔ NPI 1821230806 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
License✔ Licensed in NY · 004106
81 CROTON AVE, Ossining, NY 10562
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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 Ann Lemonius's NPI number?

The NPI number for Ann Lemonius is 1821230806. It was assigned to this individual provider in the NPPES registry on April 6, 2009.

Where is Ann Lemonius located?

Ann Lemonius practices at 81 Croton Ave, Ossining, NY 10562. The listed phone number is (914) 373-0744.

What is Ann Lemonius's specialty?

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

When was this NPI record last updated?

The NPPES record for Ann Lemonius was last updated on August 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 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.