FARRELL PSYCHOLOGICAL SERVICES, PLLC
NPI 1952775934
Psychologist in Port Jefferson, NY

Active since November 13, 2015
646 MAIN ST, PORT JEFFERSON, NY 11777(631) 901-7777 Get Directions Write a Review

NPPES record last updated: November 13, 2015. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Farrell Psychological Services, Pllc NPPES

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

FARRELL PSYCHOLOGICAL SERVICES, PLLC (NPI 1952775934) is a healthcare organization registered as a psychologist in Port Jefferson, New York and active in the NPI registry since November 2015. The organization lists Frank Farrell, Psychologist, as its authorized official.

NPPES Registry Identity

NPI1952775934
Entity TypeOrganization
Primary Taxonomy103T00000X
Legal Business NameFARRELL PSYCHOLOGICAL SERVICES, PLLC
Location Address646 MAIN STPort Jefferson, NY 11777-2235
Mailing Address105 Leeward LnPort Jefferson, NY 11777-2307 · (631) 901-7777
Organization SubpartNo
Authorized OfficialFrank FarrellPsychologist · (631) 901-7777
Enumeration DateNovember 13, 2015
✔ NPI 1952775934 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 13

★ Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License✔ Licensed in NY · 017980
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.
Also ListedPsychologist · Addiction (Substance Use Disorder)Taxonomy 103TA0400X · License 017980 (NY)
Also ListedPsychologist · Adult Development & AgingTaxonomy 103TA0700X · License 017980 (NY)
Also ListedPsychologist · Cognitive & BehavioralTaxonomy 103TB0200X · License 017980 (NY)
Also ListedPsychologist · ClinicalTaxonomy 103TC0700X · License 017980 (NY)
Also ListedPsychologist · CounselingTaxonomy 103TC1900X · License 017980 (NY)
Also ListedPsychologist · Clinical Child & AdolescentTaxonomy 103TC2200X · License 017980 (NY)
Also ListedPsychologist · FamilyTaxonomy 103TF0000X · License 017980 (NY)
Also ListedPsychologist · HealthTaxonomy 103TH0004X · License 017980 (NY)
Also ListedPsychologist · Intellectual and Developmental DisabilitiesTaxonomy 103TM1800X · License 017980 (NY)
Also ListedPsychologist · Group PsychotherapyTaxonomy 103TP2701X · License 017980 (NY)
Also ListedPsychologist · RehabilitationTaxonomy 103TR0400X · License 017980 (NY)
Also ListedPsychologist · SchoolTaxonomy 103TS0200X · License 017980 (NY)
646 MAIN ST, Port Jefferson, NY 11777

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Farrell Psychological Services, Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Farrell Psychological Services, PLLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Clinical Psychologist
NPI 1790325496
646 MAIN ST
Port Jefferson, NY 11777
(631) 901-7777
✔ PECOSSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Farrell Psychological Services, PLLC's NPI number?

The NPI number for Farrell Psychological Services, PLLC is 1952775934. It was assigned to this organization in the NPPES registry on November 13, 2015.

Where is Farrell Psychological Services, PLLC located?

Farrell Psychological Services, PLLC is located at 646 Main St, Port Jefferson, NY 11777. The listed phone number is (631) 901-7777.

What is Farrell Psychological Services, PLLC's specialty?

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

Is Farrell Psychological Services, PLLC enrolled in Medicare?

Yes. Farrell Psychological Services, PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Farrell Psychological Services, PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Psychologist) reassigns their Medicare billing to Farrell Psychological Services, PLLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Farrell Psychological Services, PLLC was last updated on November 13, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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.