Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Deborah E. Mackay, PH.D.

Clinical Psychologist in Bethesda, MD · enumerated 2007.

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

National Provider Identifier

1417173675

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Registry record

Entity type Individual (Type 1)

Name Dr. Deborah E. Mackay

Credential PH.D.

Sex Female

Practice address 8901 Rockville Pike, Bethesda, MD, 20889

Phone (301) 524-0990

Fax (301) 279-8997

Enumeration date Apr 17, 2007

Last updated in NPPES Apr 18, 2024

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 04094 (MD) 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.

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Frequently asked questions

Where does Deborah Mackay practice?

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

What is the NPI number for Deborah Mackay?

The National Provider Identifier (NPI) for Deborah Mackay is 1417173675, 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 2024-04-18.