DOREEN RIOUX DO
NPI 1124029020
Family Medicine in Yorba Linda, CA
About Doreen Rioux Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DOREEN RIOUX DO (NPI 1124029020) is an individual family medicine provider in Yorba Linda, California, licensed in California (20A5249) and active in the NPI registry since August 2005. 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)
Doreen Rioux Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Doreen Rioux reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Brea, CA 92821
- Reassigned Medicare billing, California enrollment
- 1,699 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 92886 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.
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 Doreen Rioux's NPI number?
The NPI number for Doreen Rioux is 1124029020. It was assigned to this individual provider in the NPPES registry on August 2, 2005.
Where is Doreen Rioux located?
Doreen Rioux practices at 4300 Rose Dr, Yorba Linda, CA 92886. The listed phone number is (714) 528-4211.
What is Doreen Rioux's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Doreen Rioux enrolled in Medicare?
Yes. Doreen Rioux is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Doreen Rioux's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Doreen Rioux reassigns Medicare benefits to Providence Medical Foundation (Brea, 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 Doreen Rioux'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 Doreen Rioux was last updated on November 10, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.