ALEXANDER M. PIEKARSKI, PH.D.,PSYCHOLOGIST, P.C.
NPI 1669611356
Psychologist in East Moriches, NY

Active since February 19, 2009
587 MONTAUK HWY, EAST MORICHES, NY 11940(631) 878-1530(631) 878-5775 Get Directions Write a Review

NPPES record last updated: February 19, 2009. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Alexander M. Piekarski, Ph.d.,psychologist, P.c. NPPES

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

ALEXANDER M. PIEKARSKI, PH.D.,PSYCHOLOGIST, P.C. (NPI 1669611356) is a healthcare organization registered as a psychologist in East Moriches, New York and active in the NPI registry since February 2009. The organization lists Alexander M Piekarski, Owner/dr., as its authorized official.

NPPES Registry Identity

NPI1669611356
Entity TypeOrganization
Primary Taxonomy103T00000X
Legal Business NameALEXANDER M. PIEKARSKI, PH.D.,PSYCHOLOGIST, P.C.
Location Address587 MONTAUK HWYEast Moriches, NY 11940-1234
Mailing AddressPo Box 101East Moriches, NY 11940-0101 · (631) 878-1530 · Fax (631) 878-5775
Fax(631) 878-5775
Organization SubpartNo
Authorized OfficialAlexander M PiekarskiOwner/dr. · (631) 878-1530
Enumeration DateFebruary 19, 2009
✔ NPI 1669611356 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.
587 MONTAUK HWY, East Moriches, NY 11940

Other Identifiers 2

OtherV4C551NY · Medicare P Tan #
Medicare PINV4C551NY

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE 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)

Alexander M. Piekarski, Ph.d.,psychologist, P.c. 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 Alexander M. Piekarski, Ph.D.,psychologist, P.C., which bills Medicare for the services this clinician delivers.

Clinician (1)

Clinical Psychologist
NPI 1356400386
587 MONTAUK HWY
East Moriches, NY 11940
(631) 878-1530
✔ PECOS✔ Accepts MedicareSame 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 Alexander M. Piekarski, Ph.D.,psychologist, P.C.'s NPI number?

The NPI number for Alexander M. Piekarski, Ph.D.,psychologist, P.C. is 1669611356. It was assigned to this organization in the NPPES registry on February 19, 2009.

Where is Alexander M. Piekarski, Ph.D.,psychologist, P.C. located?

Alexander M. Piekarski, Ph.D.,psychologist, P.C. is located at 587 Montauk Hwy, East Moriches, NY 11940. The listed phone number is (631) 878-1530.

What is Alexander M. Piekarski, Ph.D.,psychologist, P.C.'s specialty?

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

Is Alexander M. Piekarski, Ph.D.,psychologist, P.C. enrolled in Medicare?

Yes. Alexander M. Piekarski, Ph.D.,psychologist, P.C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Alexander M. Piekarski, Ph.D.,psychologist, P.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Psychologist) reassigns their Medicare billing to Alexander M. Piekarski, Ph.D.,psychologist, P.C.. 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 Alexander M. Piekarski, Ph.D.,psychologist, P.C. was last updated on February 19, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.