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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARY GUILLERMAIN
NPI 1194410126
Behavior Analyst in Bloomfield, NJ

Active since April 06, 2023
300 BROADACRES DR, BLOOMFIELD, NJ 07003(201) 371-6309 Get Directions Write a Review

NPPES record last updated: September 30, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Sep 30, 2026, Apr 6, 2023 (2 updates tracked since 2023).

About Mary Guillermain NPPES

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

MARY GUILLERMAIN (NPI 1194410126) is an individual behavior analyst provider in Bloomfield, New Jersey, licensed in New Jersey (1-21-55591) and active in the NPI registry since April 2023.

NPPES Registry Identity

NPI1194410126
Entity TypeIndividualFemale
Primary Taxonomy103K00000X
Provider Legal NameMARY GUILLERMAIN
Location Address300 BROADACRES DRBloomfield, NJ 07003-3153
Mailing Address7 Alwood LnSuccasunna, NJ 07876-1504 · (973) 945-1232
Phone(201) 371-6309
Sole ProprietorYes
Enumeration DateApril 6, 2023
Last NPPES UpdateSeptember 30, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 30, 2026
✔ NPI 1194410126 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyBehavior AnalystBehavioral Health & Social Service Providers
Taxonomy Code103K00000X
License✔ Licensed in NJ · 1-21-55591
Definition
A behavior analyst is qualified by at least a master's degree and Behavior Analyst Certification Board certification and/or a state-issued credential (such as a license) to practice behavior analysis independently. Behavior analysts provide the required supervision to assistant behavior analysts and behavior technicians. A behavior analyst delivers services consistent with the dimensions of applied behavior analysis. Common services may include, but are not limited to, conducting behavioral assessments, analyzing data, writing and revising behavior-analytic treatment plans, training others to implement components of treatment plans, and overseeing implementation of treatment plans.
300 BROADACRES DR, Bloomfield, NJ 07003
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Other Providers at the Same Location NPPES 3

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

SUELA LITA
Nurse Practitioner
300 BROADACRES DR
BLOOMFIELD, NJ 07003
Essex County (862) 314-7030
DR. PETER J SCORDILIS DC
Chiropractor
300 BROADACRES DR
BLOOMFIELD, NJ 07003
Essex County (973) 473-4481
GERALDA GELUS-JULES
Nurse Practitioner (Adult Health)
300 BROADACRES DR
BLOOMFIELD, NJ 07003
Essex County (862) 314-7030

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 Mary Guillermain's NPI number?

The NPI number for Mary Guillermain is 1194410126. It was assigned to this individual provider in the NPPES registry on April 6, 2023.

Where is Mary Guillermain located?

Mary Guillermain practices at 300 Broadacres Dr, Bloomfield, NJ 07003. The listed phone number is (201) 371-6309.

What is Mary Guillermain's specialty?

The primary specialty registered for this NPI is Behavior Analyst with taxonomy code 103K00000X.

When was this NPI record last updated?

The NPPES record for Mary Guillermain was last updated on September 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.