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

Dr. Justine Alexis Mahler, PSYD

Individual provider Clinical Psychologist · NPI 1356219133

Dr. Justine Alexis Mahler, PSYD is a Clinical Psychologist in Commack, New York. Licensed in New York. Registered with an NPI since 2025.

Licensed in
NY
In the registry since
2025
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

See every abbreviation used in this directory →

Practice location Address checks out

283 Commack Rd Ste 210
Commack, NY 11725-3400
Phone: (631) 901-5253
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence P139348 (NY)

Record details

NPI number1356219133
Entity typeIndividual (Type 1)
GenderFemale
Credentials PSYD
Sole proprietorNo
NPI enumeratedOctober 24, 2025
Last updated in NPPESOctober 24, 2025
Certification dateOctober 24, 2025

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