Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Eileen Mary Dimarzo, CRC

Addiction (Substance Use Disorder) Counselor in Hauppauge, NY · enumerated 2008.

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

National Provider Identifier

1740447135

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Registry record

Entity type Individual (Type 1)

Name Ms. Eileen Mary Dimarzo

Credential CRC

Sex Female

Practice address Suffolk County Department of Health Services, Blg 16 North County Complex Day Reporting Center, Hauppauge, NY, 11788

Phone (631) 853-6281

Fax (631) 853-6254

Enumeration date May 22, 2008

Last updated in NPPES May 22, 2008

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License C-042354 (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

Where does Eileen Dimarzo practice?

The practice location on file with NPPES is in Hauppauge, NY. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Eileen Dimarzo?

The National Provider Identifier (NPI) for Eileen Dimarzo is 1740447135, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-05-22.