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

Larissa Portnoff

Individual provider Clinical Psychologist · NPI 1043986664

Larissa Portnoff is a Clinical Psychologist in New York, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2021

Practice location Address checks out

5 Union Sq W # 1478
New York, NY 10003-3306
Phone: (347) 470-7760
Show map & directions

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

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 110582-01 (NY)

Record details

NPI number1043986664
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorYes
NPI enumeratedAugust 23, 2021
Last updated in NPPESJuly 8, 2026
Certification dateJuly 8, 2026

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