JESSICA LOUISSAINT
NPI 1285180950
Psychologist in Medfield, MA

Active since August 31, 2016
266 MAIN ST STE 33A, MEDFIELD, MA 02052(781) 551-0999 Get Directions Write a Review

NPPES record last updated: June 22, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

About Jessica Louissaint NPPES

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

JESSICA LOUISSAINT (NPI 1285180950) is an individual psychologist in Medfield, Massachusetts and active in the NPI registry since August 2016.

NPPES Registry Identity

NPI1285180950
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameJESSICA LOUISSAINT
Location Address266 MAIN ST STE 33AMedfield, MA 02052-2099
Mailing Address266 Main St Ste 33aMedfield, MA 02052-2099 · (781) 551-0999
Sole ProprietorNo
Enumeration DateAugust 31, 2016
Last NPPES UpdateJune 22, 2026
NPPES CertifiedJune 22, 2026
NPI 1285180950 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
Definition

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.

266 MAIN ST STE 33A, Medfield, MA 02052

Other Providers at the Same Location NPPES 2

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

Counselor (Mental Health)
266 MAIN ST STE 33A
MEDFIELD, MA 02052
Social Worker (Clinical)
266 MAIN ST STE 33A
MEDFIELD, MA 02052

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 Jessica Louissaint's NPI number?

The NPI number for Jessica Louissaint is 1285180950. It was assigned to this individual provider in the NPPES registry on August 31, 2016.

Where is Jessica Louissaint located?

Jessica Louissaint practices at 266 Main St Ste 33A, Medfield, MA 02052. The listed phone number is (781) 551-0999.

What is Jessica Louissaint's specialty?

The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.

When was this NPI record last updated?

The NPPES record for Jessica Louissaint was last updated on June 22, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.