What is Alyssia Simpson's NPI number?

Alyssia Simpson's National Provider Identifier (NPI) is 1861998387, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Alyssia Simpson's specialty?

Alyssia Simpson is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).

Where is Alyssia Simpson located?

Alyssia Simpson's practice location on file with NPPES is 1061 a St, Hayward, CA 94541-4105.

What is Alyssia Simpson's phone number?

The practice phone number listed in the NPPES registry for Alyssia Simpson is (510) 676-6980.

Is Alyssia Simpson's NPI active?

Yes — Alyssia Simpson's NPI (1861998387) is active in the NPPES registry as of the last update on 2026-02-26.

IndividualActive

Alyssia Simpson

NPI 1861998387 · Clinical Social Worker · Hayward, CA

Alyssia Simpson is a Clinical Social Worker provider in Hayward, CA (NPI 1861998387).

Provider details

NPI number: 1861998387
Entity type: Individual
Primary specialty: Clinical Social WorkerBehavioral Health & Social Service Providers
Sex: Female
Sole proprietor: Yes
License: LCSW137216 (CA)

Specialties & taxonomies

Clinical Social WorkerPrimary1041C0700XLicense LCSW137216 (CA)
Behavioral Health & Social Service Providers

Profile Score

Established profile(69/100 index)

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

Registry tenure38% of score
8 yrs in NPPES registry
Profile completeness38% of score
100% 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

1061 a St

Hayward, CA 94541-4105

Phone: (510) 676-6980

Street-level locationGet directions

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Mailing address