NPI Portal NPI Lookup & Verification

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

Mrs. Mary Erin Koprevich, CRC, LCSW-R

Clinical Social Worker in Grand Island, NY · enumerated 2005.

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

National Provider Identifier

1417954678

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Registry record

Entity type Individual (Type 1)
Name Mrs. Mary Erin Koprevich
Credential CRC, LCSW-R
Sex Female
Practice address Grand Island, NY, 14072
Fax (716) 773-5642
Enumeration date Jul 2, 2005
Last updated in NPPES Oct 14, 2009

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

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 058006 (NY) Primary

Other identifiers

Identifier Type State Issuer
213352471 Other NY UNITED BEHAVIORAL HEALTH
6213037 Other NY INDEPENDENT HEALTH
000 2731 6601 Other NY UNIVERA
02247661 Medicaid NY -
000 528 268 001 Other NY BC BS OF WNY

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

What is the NPI number for Mary Koprevich?
The National Provider Identifier (NPI) for Mary Koprevich is 1417954678, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mary Koprevich practice?
The practice location on file with NPPES is in Grand Island, NY. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-10-14.