Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Madeleine M O'Brien

Psychiatry Physician in Marcy, NY · enumerated 2007.

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

National Provider Identifier

1669674255

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Registry record

Entity type Individual (Type 1)

Name Madeleine M O'Brien

Sex Female

Practice address 300 Wright Avenue, Marcy, NY, 13404

Phone (315) 736-8271

Enumeration date Jun 5, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 180559 (NY) Primary

Other identifiers

Identifier	Type	State	Issuer
180559	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.

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Frequently asked questions

Where does Madeleine O'Brien practice?

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

What is the NPI number for Madeleine O'Brien?

The National Provider Identifier (NPI) for Madeleine O'Brien is 1669674255, 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 2007-07-08.