What is Iris Williamson's NPI number?

Iris Williamson's National Provider Identifier (NPI) is 1326931882, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Iris Williamson's specialty?

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

Where is Iris Williamson located?

Iris Williamson's practice location on file with NPPES is 1910 Olympic Blvd Ste 140&150, Walnut Creek, CA 94596-5096.

What is Iris Williamson's phone number?

The practice phone number listed in the NPPES registry for Iris Williamson is (925) 433-0990.

Is Iris Williamson's NPI active?

Yes — Iris Williamson's NPI (1326931882) is active in the NPPES registry as of the last update on 2025-06-02.

IndividualActive

Iris Williamson

NPI 1326931882 · Behavior Technician · Walnut Creek, CA

Iris Williamson is a Behavior Technician provider in Walnut Creek, CA (NPI 1326931882).

Provider details

NPI number: 1326931882
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(48/100 index)

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

Registry tenure38% of score
1 yr in NPPES 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

1910 Olympic Blvd Ste 140&150

Walnut Creek, CA 94596-5096

Phone: (925) 433-0990

Street-level locationGet directions

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Mailing address