Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Merrit Hartblay, CASAC

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1497126247

Merrit Hartblay, CASAC is an Addiction (Substance Use Disorder) Counselor in Great Neck, New York. Licensed in New York. Registered with an NPI since 2015.

Licensed in
NY
In the registry since
2015

Practice location Address checks out

50 S Middle Neck Rd Apt 2B
Great Neck, NY 11021-3434
Phone: (516) 852-8478
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Addiction (Substance Use Disorder) Counselor (primary) Taxonomy 101YA0400X · Licence 26067 (NY)

Record details

NPI number1497126247
Entity typeIndividual (Type 1)
GenderMale
Credentials CASAC
Sole proprietorNo
NPI enumeratedOctober 19, 2015
Last updated in NPPESOctober 8, 2025
Certification dateOctober 8, 2025

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