DR. DENNIS MALCOLM HENDERSON PHD
NPI 1639287758
Psychologist in Gast Northport, NY

Active since August 28, 2006PECOS EnrolledAccepts Medicare Assignment
12 GILDARE DRIVE, GAST NORTHPORT, NY 11731(631) 368-8502(631) 368-8502 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Dennis Malcolm Henderson Phd NPPES

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

DR. DENNIS MALCOLM HENDERSON PHD (NPI 1639287758) is an individual psychologist in Gast Northport, New York, licensed in New York (011792-1) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1990).

NPPES Registry Identity

NPI1639287758
Entity TypeIndividualMale
Primary Taxonomy103T00000X
Provider Legal NameDR. DENNIS MALCOLM HENDERSONCredential: PHD
Location Address12 GILDARE DRIVEGast Northport, NY 11731-3223
Mailing Address12 Gildare DriveGast Northport, NY 11731-3223 · (631) 368-8502 · Fax (631) 368-8502
Fax(631) 368-8502
Sole ProprietorYes
Medical School CMSOtherGraduated 1990
Enumeration DateAugust 28, 2006
Last NPPES UpdateJuly 8, 2007
NPI 1639287758 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License Licensed in NY · 011792-1
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.
12 GILDARE DRIVE, Gast Northport, NY 11731

Other Identifiers 4

Medicaid01660737NY
Medicare ID-Type UnspecifiedV9I681NY
OtherS11729-9NY · Workers Comp On Sation
Medicare UPINR98303

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Dennis Malcolm Henderson Phd is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID648262014
PECOS Enrollment IDI20040402001202
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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 Dennis Henderson's NPI number?

The NPI number for Dennis Henderson is 1639287758. It was assigned to this individual provider in the NPPES registry on August 28, 2006.

Where is Dennis Henderson located?

Dennis Henderson practices at 12 Gildare Drive, Gast Northport, NY 11731. The listed phone number is (631) 368-8502.

What is Dennis Henderson's specialty?

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

Is Dennis Henderson enrolled in Medicare?

Yes. Dennis Henderson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Dennis Henderson accept?

Health plans from Providence Health Plan list Dennis Henderson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Dennis Henderson was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.