What is Sierra Williams's NPI number?

Sierra Williams's National Provider Identifier (NPI) is 1962974121, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Sierra Williams's specialty?

Sierra Williams is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).

Where is Sierra Williams located?

Sierra Williams's practice location on file with NPPES is 361 Alder St, Arroyo Grande, CA 93420-3819.

What is Sierra Williams's phone number?

The practice phone number listed in the NPPES registry for Sierra Williams is (805) 448-9970.

Is Sierra Williams's NPI active?

Yes — Sierra Williams's NPI (1962974121) is active in the NPPES registry as of the last update on 2020-08-18.

IndividualActive

Sierra Williams

NPI 1962974121 · Mental Health Counselor · Arroyo Grande, CA

Sierra Williams is a Mental Health Counselor provider in Arroyo Grande, CA (NPI 1962974121).

Provider details

NPI number: 1962974121
Entity type: Individual
Primary specialty: Mental Health CounselorBehavioral Health & Social Service Providers
Sex: Female
Sole proprietor: No

Specialties & taxonomies

Mental Health CounselorPrimary101YM0800X
Behavioral Health & Social Service Providers

Profile Score

Established profile(60/100 index)

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

Registry tenure38% of score
7 yrs 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

361 Alder St

Arroyo Grande, CA 93420-3819

Phone: (805) 448-9970

Street-level locationGet directions

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Mailing address