MRS. MARIBEL DIAZ MSW
NPI 1992954432
Counselor - Mental Health in Santa Monica, CA
About Mrs. Maribel Diaz Msw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. MARIBEL DIAZ MSW (NPI 1992954432) is an individual mental health provider in Santa Monica, California and active in the NPI registry since September 2008. 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)
Mrs. Maribel Diaz Msw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Maribel Diaz reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Jose, CA 95113
- Reassigned Medicare billing, California enrollment
- 3,139 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.
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.
SANTA MONICA, CA 90404
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 Maribel Diaz's NPI number?
The NPI number for Maribel Diaz is 1992954432. It was assigned to this individual provider in the NPPES registry on September 9, 2008.
Where is Maribel Diaz located?
Maribel Diaz practices at 1533 Euclid St, Santa Monica, CA 90404. The listed phone number is (310) 451-9747.
What is Maribel Diaz's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.
Is Maribel Diaz enrolled in Medicare?
Yes. Maribel Diaz is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Maribel Diaz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Maribel Diaz reassigns Medicare benefits to Grow Healthcare Group PC (San Jose, 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 Maribel Diaz'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 Maribel Diaz was last updated on September 9, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Mrs. Maribel Diaz, MSW · NPI 1992954432
Mental Health provider in Santa Monica, California. Individual provider, active in the CMS NPPES registry since September 9, 2008.
## Identity
- **NPI:** 1992954432 (Entity type: Individual)
- **Enumerated:** September 9, 2008
- **Primary specialty:** Counselor - Mental Health · taxonomy 101YM0800X
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1533 EUCLID ST, Santa Monica, CA 90404-3306
- **Phone:** (310) 451-9747
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Grow Healthcare Group PC (NPI 1154994846, San Jose, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 9, 2008
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Source: [NPI Profile](https://npiprofile.com/npi/1992954432) · Data from the CMS NPPES public registry.