Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Alexander M Piekarski, PH.D.

Clinical Psychologist in East Moriches, NY · enumerated 2006 · practices at Alexander M. Piekarski, Ph.D.,Psychologist, P.C..

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1356400386

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Alexander M Piekarski

Credential PH.D.

Sex Male

Practice address East Moriches, NY, 11940

Phone (631) 878-1530

Fax (631) 878-5775

Enumeration date Dec 6, 2006

Last updated in NPPES May 27, 2009

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 011826-1 (NY) Primary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PY 7876 (FL) Secondary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier	Type	State	Issuer
01624919	Medicaid	NY	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Alexander Piekarski?

Alexander Piekarski is registered in NPPES with the primary taxonomy of Clinical Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

Alexander M. Piekarski, Ph.D.,Psychologist, P.C. Psychologist · East Moriches, NY NPI 1669611356

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-05-27.