Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary R Cohen, PHD

Q: What is the NPI number for Mary Cohen?

The National Provider Identifier (NPI) for Mary Cohen is 1508893405, a Type 1 (individual) record in the CMS NPPES registry.

Psychologist in Philadelphia, PA · enumerated 2006.

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

National Provider Identifier

1508893405

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Registry record

Entity type Individual (Type 1)

Name Mary R Cohen

Credential PHD

Sex Female

Practice address 3535 Market St, 3rd Floor, Philadelphia, PA, 19104

Phone (215) 746-6700

Enumeration date Jun 27, 2006

Last updated in NPPES Feb 2, 2011

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License PS006925L (PA) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD 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 Mary Cohen practice?

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

What is the NPI number for Mary Cohen?

The National Provider Identifier (NPI) for Mary Cohen is 1508893405, 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 2011-02-02.