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

Seiden & Porjesz LLP

Organization Clinical Psychologist · NPI 1225127434

Seiden & Porjesz LLP provides Clinical Psychologist services in New York, New York. Licensed in New York. Registered with an NPI since 2006.

Licensed in
NY
In the registry since
2006
What do these letters mean?
LLP — Limited liability partnership
A form of business registration, not a clinical qualification.

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Practice location Address checks out

525 W End Ave Ste #7E Yvonne Porjesz Phd
New York, NY 10024-3207
Phone: (212) 874-5437
Fax: (212) 874-5437
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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 005106 (NY)

Record details

NPI number1225127434
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Yvonne Porjesz — Clinical Psychologist · (212) 874-5437
NPI enumeratedOctober 12, 2006
Last updated in NPPESAugust 22, 2020
Mailing address525 West End Ave Suite #7e, Yvonne Porjesz Phd, New York, NY 10024-3207

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