What is Grace Williams's NPI number?

Grace Williams's National Provider Identifier (NPI) is 1598616997, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Grace Williams's specialty?

Grace Williams is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).

Where is Grace Williams located?

Grace Williams's practice location on file with NPPES is 13588 Prospector Rd, Victorville, CA 92392-8851.

What is Grace Williams's phone number?

The practice phone number listed in the NPPES registry for Grace Williams is (714) 366-7878.

Is Grace Williams's NPI active?

Yes — Grace Williams's NPI (1598616997) is active in the NPPES registry as of the last update on 2026-02-03.

IndividualActive

Grace Williams

NPI 1598616997 · Behavior Technician · Victorville, CA

Grace Williams is a Behavior Technician provider in Victorville, CA (NPI 1598616997).

Provider details

NPI number: 1598616997
Entity type: Individual
Primary specialty: Behavior TechnicianBehavioral Health & Social Service Providers
Sex: Female
Sole proprietor: No

Specialties & taxonomies

Behavior TechnicianPrimary106S00000X
Behavioral Health & Social Service Providers

Profile Score

Basic profile(47/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
Under 1 yr in registry
Profile completeness38% of score
83% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

13588 Prospector Rd

Victorville, CA 92392-8851

Phone: (714) 366-7878

Street-level locationGet directions

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Mailing address