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

Mr. Ross Lowell Mayberry, PH.D.

Psychologist in Edmonds, WA · enumerated 2006.

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

National Provider Identifier

1609948678

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Registry record

Entity type Individual (Type 1)

Name Mr. Ross Lowell Mayberry

Credential PH.D.

Sex Male

Practice address Edmonds, WA, 98020

Phone (206) 735-9592

Fax (206) 323-7324

Enumeration date Nov 15, 2006

Last updated in NPPES Jan 25, 2024

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

Taxonomy & licenses

103TC1900X Counseling Psychologist Behavioral Health & Social Service Providers · License PSY 1297 (WA) Secondary

103T00000X Psychologist Behavioral Health & Social Service Providers · License WAPSY1297 (WA) 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
91-1985428	Other	-	TAX ID #

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 is the NPI number for Ross Mayberry?

The National Provider Identifier (NPI) for Ross Mayberry is 1609948678, a Type 1 (individual) record in the CMS NPPES registry.

Where does Ross Mayberry practice?

The practice location on file with NPPES is in Edmonds, WA. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-01-25.