NPI Portal NPI Lookup & Verification

Clare Therese Johnston

Clare Therese Johnston is a Case Manager/Care Coordinator provider (Case Manager/Care Coordinator) practicing in Fairfield, CA, registered in the NPPES registry with NPI 1750175766 since 2025.

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NPI 1750175766
Entity type Individual (Type 1)
Name Clare Therese Johnston
Sex Female
Practice address 710 MISSOURI ST, Fairfield, CA, 94533
Phone 5309022604
Enumeration date 2025-04-07
Last updated in NPPES 2025-05-01

Taxonomy & licenses

Taxonomy code Specialty Primary License State
171M00000X Case Manager/Care Coordinator Primary 21388 CA
Copy-ready billing details
Provider: Clare Johnston
NPI: 1750175766
Taxonomy: 171M00000X (Case Manager/Care Coordinator)
Address: 710 MISSOURI ST, Fairfield, CA, 94533

Other providers at this practice address

NPI Name Type Specialty Location
1366978124 Michelle Ortega Individual Addiction (Substance Use Disorder) Counselor Fairfield, CA

Verify this record

Cross-check NPI 1750175766 against the authoritative CMS record: view Clare Therese Johnston on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

How do I verify Clare Johnston's NPI record?
Cross-check NPI 1750175766 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1750175766 active?
Yes — as of the latest NPPES snapshot, NPI 1750175766 is active (record last updated 2025-05-01).

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2025-05-01.