Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Patricia Downer, PH.D.
Clinical Psychologist in Tucson, AZ · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1528278520
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Registry record
Entity type Individual (Type 1)
Name Patricia Downer
Credential PH.D.
Sex Female
Practice address 1845 W Orange Grove Rd Suite 111, Tucson, AZ, 85704
Phone (520) 329-8298
Fax (520) 329-8311
Enumeration date May 22, 2007
Last updated in NPPES Sep 11, 2012
Taxonomy & licenses
103G00000X Clinical Neuropsychologist Behavioral Health & Social Service Providers · License 1978 (AZ) Secondary
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 1978 (AZ) 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.
Frequently asked questions
How do I verify Patricia Downer's NPI record?
Cross-check NPI 1528278520 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1528278520 active?
Yes, as of the latest NPPES snapshot, NPI 1528278520 is active (record last updated 2012-09-11).
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-09-11.