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

Marvin Leibowitz PHD LLC

Organization Clinical Psychologist · NPI 1578809448

Marvin Leibowitz PHD LLC is a Clinical Psychologist in Ridgewood, New Jersey. Licensed in New Jersey. Registered with an NPI since 2012.

Licensed in
NJ
In the registry since
2012
What do these letters mean?
LLC — Limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

61 N Maple Ave Ste 103
Ridgewood, NJ 07450-3255
Phone: (201) 445-6378
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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 35S100088200 (NJ)

Record details

NPI number1578809448
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Marvin Leibowitz — Managing Partner · (201) 445-6378
NPI enumeratedDecember 21, 2012
Last updated in NPPESDecember 21, 2012
Mailing address61 N Maple Ave, Suite 103, Ridgewood, NJ 07450-3255

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