Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Joanne Dixon, PH.D.

Psychologist in Pittsburgh, PA · enumerated 2006.

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

National Provider Identifier

1467566950

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Registry record

Entity type Individual (Type 1)

Name Mary Joanne Dixon

Credential PH.D.

Sex Female

Practice address 4701 Baptist Rd, Suite 208a, Pittsburgh, PA, 15227

Phone (412) 882-9929

Fax (412) 882-9949

Enumeration date Aug 19, 2006

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

103TB0200X Cognitive & Behavioral Psychologist Behavioral Health & Social Service Providers · License PS004663L (PA) Secondary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PS004663L (PA) Secondary

103TC2200X Clinical Child & Adolescent Psychologist Behavioral Health & Social Service Providers · License PS004663L (PA) Secondary

103T00000X Psychologist Behavioral Health & Social Service Providers · License PS004663L (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.

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Frequently asked questions

What specialty is Mary Dixon?

Mary Dixon is registered in NPPES with the primary taxonomy of Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.