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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

DR. ISABELLE SIEGEL PSY.D.
NPI 1124938196
Psychologist - Clinical in Monmouth Junction, NJ

Active since September 10, 2026
939 RIDGE RD, MONMOUTH JUNCTION, NJ 08852(609) 497-3936 Get Directions Write a Review

NPPES record added: September 10, 2026. Verified against the NPPES registry weekly; last sync: September 13, 2026.

About Dr. Isabelle Siegel Psy.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ISABELLE SIEGEL PSY.D. (NPI 1124938196) is an individual clinical provider in Monmouth Junction, New Jersey, licensed in New Jersey (263-070) and active in the NPI registry since September 2026.

NPPES Registry Identity

NPI1124938196
Entity TypeIndividualFemale
Primary Taxonomy103TC0700X
Provider Legal NameDR. ISABELLE SIEGELCredential: PSY.D.
Location Address939 RIDGE RDMonmouth Junction, NJ 08852-3200
Mailing Address939 Ridge RdMonmouth Junction, NJ 08852-3200 · (609) 497-3936
Phone(609) 497-3936
Sole ProprietorNo
Enumeration DateSeptember 10, 2026
NPPES CertifiedSeptember 10, 2026
✔ NPI 1124938196 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in NJ · 263-070
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
939 RIDGE RD, Monmouth Junction, NJ 08852
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Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

NEW JERSEY CENTER FOR OCD AND ANXIETY, LLC
Psychologist (Clinical)
939 RIDGE RD
MONMOUTH JUNCTION, NJ 08852
Middlesex County (609) 497-3936

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Isabelle Siegel's NPI number?

The NPI number for Isabelle Siegel is 1124938196. It was assigned to this individual provider in the NPPES registry on September 10, 2026.

Where is Isabelle Siegel located?

Isabelle Siegel practices at 939 Ridge Rd, Monmouth Junction, NJ 08852. The listed phone number is (609) 497-3936.

What is Isabelle Siegel's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

When was this NPI record last updated?

The NPPES record for Isabelle Siegel was last updated on September 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.