Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marissa Mccay, M.D.

Sports Medicine (Internal Medicine) Physician in West Harrison, NY · enumerated 2014 · practices at Trustees of Columbia University in the City of New York.

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

National Provider Identifier

1972922441

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Registry record

Entity type Individual (Type 1)

Name Marissa Mccay

Credential M.D.

Sex Female

Practice address 1111 Westchester Ave, West Harrison, NY, 10604

Phone (212) 305-9137

Fax (212) 304-7050

Enumeration date Apr 14, 2014

Last updated in NPPES Oct 16, 2025

Taxonomy & licenses

207RS0010X Sports Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 325177 (NY) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Marissa Mccay practice?

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

What is the NPI number for Marissa Mccay?

The National Provider Identifier (NPI) for Marissa Mccay is 1972922441, 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 2025-10-16.