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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Joseph A. Demeyer, PHD

Clinical Psychologist in Wayne, NJ · enumerated 2006.

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

National Provider Identifier

1184788903

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Registry record

Entity type Individual (Type 1)
Name Dr. Joseph A. Demeyer
Credential PHD
Sex Male
Practice address Wayne, NJ, 07470
Phone (973) 696-8554
Fax (908) 756-2283
Enumeration date Dec 19, 2006
Last updated in NPPES Oct 25, 2010

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License SI001897 (NJ) Primary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier Type State Issuer
3808009 Medicaid NJ -

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 Joseph Demeyer practice?
The practice location on file with NPPES is in Wayne, NJ. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Joseph Demeyer?
The National Provider Identifier (NPI) for Joseph Demeyer is 1184788903, 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 2010-10-25.