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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Alexander J. Posilkin

Social Worker in Staten Island, NY · enumerated 2009.

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

National Provider Identifier

1366680225

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Registry record

Entity type Individual (Type 1)
Name Mr. Alexander J. Posilkin
Sex Male
Practice address 2795 Richmond Ave, Staten Island, NY, 10314
Phone (718) 982-6982
Fax (718) 982-6916
Enumeration date Jan 30, 2009
Last updated in NPPES Jan 30, 2009

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers Primary

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.

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Frequently asked questions

Where does Alexander Posilkin practice?
The practice location on file with NPPES is in Staten Island, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Alexander Posilkin?
The National Provider Identifier (NPI) for Alexander Posilkin is 1366680225, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-01-30.