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

Dr. Devon Elizabeth Singh-Barrett, PH.D.

Clinical Psychologist in Mercer Island, WA · enumerated 2007 · practices at Meagan M Hyde, LLC.

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

National Provider Identifier

1033391644

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Registry record

Entity type Individual (Type 1)
Name Dr. Devon Elizabeth Singh-Barrett
Credential PH.D.
Sex Female
Practice address Mercer Island, WA, 98040
Phone (206) 275-0764
Enumeration date Dec 5, 2007
Last updated in NPPES Dec 5, 2007

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 PY00003858 (WA) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Devon Singh-Barrett?
Devon Singh-Barrett is registered in NPPES with the primary taxonomy of Clinical 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 2007-12-05.