MS. JOSEFINA ARREOLA MSW, ASW
NPI 1427280841
Social Worker - Clinical in Lancaster, CA
About Ms. Josefina Arreola Msw, Asw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. JOSEFINA ARREOLA MSW, ASW (NPI 1427280841) is an individual clinical provider in Lancaster, California, licensed in California (LCSW99470) and active in the NPI registry since August 2009. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Ms. Josefina Arreola Msw, Asw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Josefina Arreola reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Lancaster, CA 93534
- Reassigned Medicare billing, California enrollment
- 22 clinicians in this Medicare group
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 93534 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
LANCASTER, CA 93534
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 Josefina Arreola's NPI number?
The NPI number for Josefina Arreola is 1427280841. It was assigned to this individual provider in the NPPES registry on August 18, 2009.
Where is Josefina Arreola located?
Josefina Arreola practices at 506 W Jackman St, Lancaster, CA 93534. The listed phone number is (661) 726-2850.
What is Josefina Arreola's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Josefina Arreola enrolled in Medicare?
Yes. Josefina Arreola is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Josefina Arreola's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Josefina Arreola reassigns Medicare benefits to Mental Health America Of Los Angeles (Lancaster, CA). The 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 Josefina Arreola'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 Josefina Arreola was last updated on March 4, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.