Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Catherine Pollock-Pfingst

Social Worker in Central Islip, NY · enumerated 2021.

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

National Provider Identifier

1902575608

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mary Catherine Pollock-Pfingst

Sex Female

Practice address 320 Carleton Ave, Central Islip, NY, 11722

Phone (631) 234-7807

Enumeration date Sep 7, 2021

Last updated in NPPES Sep 7, 2021

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 41697-01 (NY) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Mary Pollock-Pfingst?

Mary Pollock-Pfingst is registered in NPPES with the primary taxonomy of Social Worker. 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 →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-09-07.