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

Gregory I. Mack, Ph D :clinical, Police & Forensic Psych Svs PLLC

Organization Addiction (Substance Use Disorder) Psychologist · NPI 1316487259

Gregory I. Mack, Ph D :clinical, Police & Forensic Psych Svs PLLC is an Addiction (Substance Use Disorder) Psychologist in Yorktown Heights, New York. Licensed in New York. Registered with an NPI since 2017.

Licensed in
NY
In the registry since
2017
Specialties on file
5
What do these letters mean?
PLLC — Professional limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

345 Kear St Ste 202
Yorktown Heights, NY 10598-4425
Phone: (845) 282-3367
Fax: (914) 743-1613
Show map & directions

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

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 016597 (NY)
Addiction (Substance Use Disorder) Psychologist Taxonomy 103TA0400X · Licence 016597 (NY)
Cognitive & Behavioral Psychologist Taxonomy 103TB0200X · Licence 016597 (NY)
Forensic Psychologist Taxonomy 103TF0200X · Licence 016597 (NY)
Group Psychotherapy Psychologist Taxonomy 103TP2701X · Licence 016597 (NY)

Record details

NPI number1316487259
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Gregory Mack — Owner · (845) 282-3367
Other names Clinical, Police & Forensic Psychological Services Pllc
NPI enumeratedFebruary 25, 2017
Last updated in NPPESFebruary 25, 2017
Mailing addressPo Box 533, Shrub Oak, NY 10588-0533

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