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ALYSSIA SIMPSON
NPI 1861998387
Social Worker - Clinical in Hayward, CA

Active since April 03, 2018PECOS Enrolled

NPPES record last updated: February 26, 2026. Verified against the NPPES registry weekly; last sync: October 11, 2026.

About Alyssia Simpson NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ALYSSIA SIMPSON (NPI 1861998387) is an individual clinical provider in Hayward, California, licensed in California (LCSW137216) and active in the NPI registry since April 2018. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1861998387
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameALYSSIA SIMPSON
Location Address1061 A STHayward, CA 94541-4105
Mailing Address1061 A StHayward, CA 94541-4105 · (510) 676-6980
Phone(510) 676-6980
Sole ProprietorYes
Enumeration DateApril 3, 2018
Last NPPES UpdateFebruary 26, 2026
NPPES CertifiedFebruary 26, 2026
✔ NPI 1861998387 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in CA · LCSW137216
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
1061 A ST, Hayward, CA 94541
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Alyssia Simpson is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94541 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$0.00 typical visit price
range $69.00 – $202.35
Typical copayment $0.00 (range $17.25 – $50.58)
Most-billed visit code NA
Established Patient
$84.91 typical visit price
range $23.44 – $166.46
Typical copayment $21.22 (range $5.86 – $41.61)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 13

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SELENA ACOSTA
Social Worker
1061 A ST
HAYWARD, CA 94541
Alameda County (510) 657-7409
ARIANA CHAU
Social Worker
1061 A ST
HAYWARD, CA 94541
Alameda County (510) 459-7468
ERON LEE MADDOX
Specialist
1061 A ST
HAYWARD, CA 94541
Alameda County (510) 942-5653
MS. BIANCA GISELLE NUNEZ
Social Worker
1061 A ST
HAYWARD, CA 94541
Alameda County (510) 435-9438
JERMAINE MAURICE HARPER
Case Manager/Care Coordinator
1061 A ST
HAYWARD, CA 94541
Alameda County (510) 657-7409
SABLE HORTON-COLEMAN
Social Worker
1061 A ST
HAYWARD, CA 94541
Alameda County (510) 657-7409
MR. PETER WILSON MS
Counselor (Mental Health)
1061 A ST
HAYWARD, CA 94541
Alameda County (510) 459-1761
MISS TAJINDER KAUR SEKHON
Community Health Worker
1061 A ST
HAYWARD, CA 94541
Alameda County (510) 363-4827

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Alyssia Simpson's NPI number?

The NPI number for Alyssia Simpson is 1861998387. It was assigned to this individual provider in the NPPES registry on April 3, 2018.

Where is Alyssia Simpson located?

Alyssia Simpson practices at 1061 A St, Hayward, CA 94541. The listed phone number is (510) 676-6980.

What is Alyssia Simpson's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Alyssia Simpson enrolled in Medicare?

Yes. Alyssia Simpson is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Alyssia Simpson was last updated on February 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.