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

Mr. John French Mackay III

Individual provider Clinical Social Worker · NPI 1902441520

Mr. John French Mackay III is a Clinical Social Worker in Copiague, New York. Licensed in New York. Registered with an NPI since 2019.

Licensed in
NY
In the registry since
2019

Practice location Address checks out

445 Oak St
Copiague, NY 11726-3111
Phone: (631) 257-5173
Show map & directions

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

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 074978-1 (NY)

Record details

NPI number1902441520
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedNovember 7, 2019
Last updated in NPPESNovember 7, 2019

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