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REBECCA HATHORN LCSW
NPI 1770624363
Social Worker - Clinical in Hayward, CA

Active since February 08, 2007PECOS Enrolled
22245 MAIN ST, SUITE 200, HAYWARD, CA 94541(510) 727-9401(510) 727-9405 Get Directions Write a Review

NPPES record last updated: April 1, 2011. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Rebecca Hathorn Lcsw NPPES

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

REBECCA HATHORN LCSW (NPI 1770624363) is an individual clinical provider in Hayward, California, licensed in California (26832) and active in the NPI registry since February 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1770624363
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameREBECCA HATHORNCredential: LCSW
Location Address22245 MAIN ST, SUITE 200Hayward, CA 94541-4028
Mailing Address22245 Main St, Suite 200Hayward, CA 94541-4028 · (510) 727-9401 · Fax (510) 727-9405
Phone(510) 727-9401
Fax(510) 727-9405
Sole ProprietorNo
Enumeration DateFebruary 8, 2007
Last NPPES UpdateApril 1, 2011
✔ NPI 1770624363 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
Licenses✔ Licensed in CA · 26832✔ Licensed in CA · ASW 18459
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.
22245 MAIN ST, Hayward, CA 94541
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Rebecca Hathorn Lcsw 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.

Medicare Billing Reassignments

2

Medicare enrollment records show Rebecca Hathorn reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Side By Side
Same address
Community/Behavioral Health
22245 MAIN ST, SUITES 102, 200-215
Hayward, CA 94541
  • Reassigned Medicare billing, California enrollment
NPI 1174775639 (510) 727-9401
Permanente Medical Group Inc
15 mi
Internal Medicine
1190 VETERANS BLVD
Redwood City, CA 94063
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1639252604 (650) 299-2000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 20

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

TACHERRELL MENSAH
Counselor
22245 MAIN ST, SUITE 200
HAYWARD, CA 94541
Alameda County (510) 727-9401
MS. ALISON ELIZABETH LARKIN LCSW
Counselor (Mental Health)
22245 MAIN ST
HAYWARD, CA 94541
Alameda County (260) 348-6890
CAITLIN GULSETH
Day Training/Habilitation Specialist
22245 MAIN ST
HAYWARD, CA 94541
Alameda County (510) 876-1256
MS. JESSICA LEIGH JOHNSON LCSW
Social Worker (Clinical)
22245 MAIN ST, SUITE 200
HAYWARD, CA 94541
Alameda County (510) 727-9401
STEPHANIE PERRON MSW
Counselor (Mental Health)
22245 MAIN ST, SUITE 200
HAYWARD, CA 94541
Alameda County (415) 760-6810
STEPHENIQUE ALLEN
Community Health Worker
22245 MAIN ST
HAYWARD, CA 94541
Alameda County (510) 566-1357
ALLY D. SILVA MSW
Social Worker (Clinical)
22245 MAIN ST
HAYWARD, CA 94541
Alameda County (510) 727-9401
JASMINE CERVANTES
Counselor
22245 MAIN ST
HAYWARD, CA 94541
Alameda County (510) 605-6129

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 Rebecca Hathorn's NPI number?

The NPI number for Rebecca Hathorn is 1770624363. It was assigned to this individual provider in the NPPES registry on February 8, 2007.

Where is Rebecca Hathorn located?

Rebecca Hathorn practices at 22245 Main St Suite 200, Hayward, CA 94541. The listed phone number is (510) 727-9401.

What is Rebecca Hathorn's specialty?

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

Is Rebecca Hathorn enrolled in Medicare?

Yes. Rebecca Hathorn is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Rebecca Hathorn's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Rebecca Hathorn reassigns Medicare benefits to 2 organizations: Side By Side (Hayward, CA) and Permanente Medical Group Inc (Redwood City, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Rebecca Hathorn's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Rebecca Hathorn was last updated on April 1, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years 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.