MERRIT HARTBLAY CASAC
NPI 1497126247
Counselor - Addiction (Substance Use Disorder) in Great Neck, NY

Q: What is Merrit Hartblay's NPI number?

The NPI number for Merrit Hartblay is 1497126247. It was assigned to this individual provider in the NPPES registry on October 19, 2015.

Q: What is Merrit Hartblay's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

Q: When was this NPI record last updated?

The NPPES record for Merrit Hartblay was last updated on October 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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 October 19, 2015

50 S MIDDLE NECK RD APT 2B, GREAT NECK, NY 11021(516) 852-8478 Get Directions Write a Review

NPPES record last updated: October 8, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Merrit Hartblay Casac NPPES

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

MERRIT HARTBLAY CASAC (NPI 1497126247) is an individual addiction (substance use disorder) provider in Great Neck, New York, licensed in New York (26067) and active in the NPI registry since October 2015.

NPPES Registry Identity

NPI1497126247

Entity TypeIndividualMale

Primary Taxonomy101YA0400X

Provider Legal NameMERRIT HARTBLAYCredential: CASAC

Location Address50 S MIDDLE NECK RD APT 2BGreat Neck, NY 11021-3434

Mailing Address50 S Middle Neck Rd Apt 2bGreat Neck, NY 11021-3434 · (516) 852-8478

Phone(516) 852-8478

Sole ProprietorNo

Enumeration DateOctober 19, 2015

Last NPPES UpdateOctober 8, 2025

NPPES CertifiedOctober 8, 2025

✔ NPI 1497126247 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers

Taxonomy Code101YA0400X

License✔ Licensed in NY · 26067

50 S MIDDLE NECK RD APT 2B, Great Neck, NY 11021

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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 Merrit Hartblay's NPI number?

The NPI number for Merrit Hartblay is 1497126247. It was assigned to this individual provider in the NPPES registry on October 19, 2015.

Where is Merrit Hartblay located?

Merrit Hartblay practices at 50 S Middle Neck Rd Apt 2B, Great Neck, NY 11021. The listed phone number is (516) 852-8478.

What is Merrit Hartblay's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

When was this NPI record last updated?

The NPPES record for Merrit Hartblay was last updated on October 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.