NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ziv Bell, PHD

Psychologist in Mercer Island, WA · enumerated 2017 · practices at Mercer Island Therapy, Pllc.

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

National Provider Identifier

1649789728

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Ziv Bell
Credential PHD
Sex Male
Practice address 8015 Se 28th St Ste 309, Mercer Island, WA, 98040
Phone (206) 236-1294
Fax (206) 257-3196
Enumeration date Sep 21, 2017
Last updated in NPPES May 13, 2021

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers Secondary
103T00000X Psychologist Behavioral Health & Social Service Providers · License PY61104629 (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 Ziv Bell?
Ziv Bell 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.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-13.