Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Grace Tonkin

Q: What is the NPI number for Grace Tonkin?

The National Provider Identifier (NPI) for Grace Tonkin is 1710448675, a Type 1 (individual) record in the CMS NPPES registry.

Behavior Technician in Honolulu, HI · enumerated 2019.

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

National Provider Identifier

1710448675

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Registry record

Entity type Individual (Type 1)

Name Grace Tonkin

Sex Female

Practice address 500 Ala Moana Blvd Ste 400, Honolulu, HI, 96813

Phone (800) 249-1266

Enumeration date Mar 25, 2019

Last updated in NPPES Mar 25, 2019

Taxonomy & licenses

106S00000X Behavior Technician Behavioral Health & Social Service Providers Primary

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

Where does Grace Tonkin practice?

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

What is the NPI number for Grace Tonkin?

The National Provider Identifier (NPI) for Grace Tonkin is 1710448675, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-03-25.