Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Ryan Adam Howes, PH.D.
Psychologist in Arcadia, CA · enumerated 2024.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1790555431
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Registry record
Entity type Individual (Type 1)
Name Dr. Ryan Adam Howes
Credential PH.D.
Sex Male
Practice address 1100 Drake Rd, Arcadia, CA, 91007
Phone (626) 429-0321
Enumeration date Jan 4, 2024
Last updated in NPPES Jan 4, 2024
Taxonomy & licenses
103T00000X Psychologist Behavioral Health & Social Service Providers · License PSY17983 (CA) 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
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.
What specialty is Ryan Howes?
Ryan Howes 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.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-01-04.