MATRIX INSTITUTE ON ADDICTIONS
NPI 1992129282
Community/Behavioral Health in Ontario, CA
About Matrix Institute On Addictions NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MATRIX INSTITUTE ON ADDICTIONS (NPI 1992129282) is a healthcare organization registered as a community/behavioral health in Ontario, California and active in the NPI registry since February 2014. The organization lists Matt Walton, Interim Executive Officer, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Matrix Institute On Addictions is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
4Medicare enrollment records show 4 clinicians reassign Medicare billing to Matrix Institute On Addictions, which bills Medicare for the services they deliver. They are listed nearest first.
Clinicians, nearest first (4)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Clare Matrix's NPI number?
The NPI number for Clare Matrix is 1992129282. It was assigned to this organization in the NPPES registry on February 7, 2014. The provider is doing business as Matrix Institute On Addictions.
Where is Clare Matrix located?
Clare Matrix is located at 812 N Euclid Ave, Ontario, CA 91762. The listed phone number is (099) 395-0888.
What is Clare Matrix's specialty?
The primary specialty registered for this NPI is Community/Behavioral Health with taxonomy code 251S00000X.
Is Clare Matrix enrolled in Medicare?
Yes. Clare Matrix is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Clare Matrix?
According to the CMS Revalidation Reassignment List (October 2026 release), 4 clinicians reassign their Medicare billing to Clare Matrix, in Internal Medicine, Marriage and Family Therapist and Nurse Practitioner. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Clare Matrix was last updated on March 5, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Matrix Institute On Addictions · NPI 1992129282
Community/Behavioral Health organization in Ontario, California. Organization record, active in the CMS NPPES registry since February 7, 2014.
## Identity
- **NPI:** 1992129282 (Entity type: Organization)
- **Enumerated:** February 7, 2014
- **Primary specialty:** Community/Behavioral Health · taxonomy 251S00000X
- **Legal business name:** Clare Matrix
- **Organization subpart:** No
- **Authorized official:** Matt Walton, INTERIM EXECUTIVE OFFICER
## Practice location
- **Address:** 812 N EUCLID AVE, Ontario, CA 91762-2714
- **Phone:** (099) 395-0888
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 4 clinicians in 3 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Marriage and Family Therapist (2), Internal Medicine (1), Nurse Practitioner (1) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 5, 2024
---
Source: [NPI Profile](https://npiprofile.com/npi/1992129282) · Data from the CMS NPPES public registry.