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Deactivated NPI 1548303191 Deactivated / Inactive NPI Male Practitioner

Dr. Marvin Leibowitz , PhD

Psychologist • Ridgewood, NJ

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Notice of NPI Deactivation & Inactive Practice Status

According to official public domain records published by CMS (Centers for Medicare & Medicaid Services) in the National Provider Identifier (NPPES) Registry, Dr. Marvin Leibowitz has officially deactivated this NPI record and ceased active healthcare practice.

Registration / Start Date February 14, 2007
NPI Deactivation Date November 01, 2023
Total Practice Duration ~16 Years of Practice (2007 – 2023)

Professional Overview & Biography Verified Profile Summary

Dr. Marvin Leibowitz, PhD was a registered Psychologist practicing in Ridgewood, NJ. Throughout an active medical career spanning 16 years, Dr. Leibowitz provided care at the practice location at 61 N. MAPLE AVE. until profile deactivation on 2023-11-01.

Practice Location & Contact Primary Location

Practice Address

61 N. Maple Ave.
101

Ridgewood, NJ 07450

Telephone 2014456378
Fax 2014453300
Associated Practice Facility / Clinic
🏢 Marvinleibowitz, Ph.d., Llc Facility NPI 1619297660

Specialty Benchmarks & Practice Insights

Comparative analytics for Psychologist in Ridgewood, NJ

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 33.4 Yrs
State Avg: 31.9 Yrs
Regional Practice Density
36 Specialists

Practicing in Ridgewood, NJ (1608 Statewide)

Telehealth Adoption Rate
11.1% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

Psychologist Primary Specialty

NUCC Taxonomy Code: 103T00000X

State License NJ 35SI00088200

A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

1 Associated Practitioners
Valerie Leibowitz , LCSW

Social Worker - Clinical

NPI 1649490137

Licensed Clinical Social Worker

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

8 Historical Events
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NPI Profile Deactivated November 01, 2023

Record deactivated on November 01, 2023

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Medical Taxonomy / Specialty Registered (Primary Specialty) September 16, 2023

Psychologist (License #35SI00088200 in NJ)

NPI Profile Active May 14, 2010

NPI status registered as active in NPPES database

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Updated Practice Location May 14, 2010

Registered at 61 N. MAPLE AVE., 101, RIDGEWOOD, NJ 07450 (Tel: 2014456378)

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Updated Business Mailing Address May 14, 2010

Registered at 61 N. MAPLE AVE., 101, RIDGEWOOD, NJ 07450 (Tel: 2014456378)

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Provider Name / Credentials Updated May 14, 2010

Recorded as MARVIN LEIBOWITZ, PH.D.

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Medical Taxonomy / Specialty Registered (Primary Specialty) May 14, 2010

Psychologist (License #35SI00088200 in NJ)

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Initial NPI Registration & Enumeration February 14, 2007

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1548303191
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: February 14, 2007
Last Update: May 14, 2010
Deactivation Date: November 01, 2023

Mailing Address

61 N. Maple Ave., 101

Ridgewood, NJ 07450

Phone: 2014456378

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.