DR. IVAN ERNESTO LEROUX MD
NPI 1568088110
Internal Medicine in Upland, CA
About Dr. Ivan Ernesto Leroux Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. IVAN ERNESTO LEROUX MD (NPI 1568088110) is an individual internal medicine provider in Upland, California, licensed in California (A183662) and active in the NPI registry since June 2020. He is enrolled in Medicare PECOS and is a graduate of Meharry Medical College School Of Medicine (2020).
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 and accepts Medicare assignment
Dr. Ivan Ernesto Leroux Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Ivan Leroux reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Anaheim, CA 92807
- Reassigned Medicare billing, California enrollment
- 13,921 clinicians in this Medicare group
Pasadena, CA 91105
- Reassigned Medicare billing, California enrollment
- 204 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 91786 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
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 Ivan Leroux's NPI number?
The NPI number for Ivan Leroux is 1568088110. It was assigned to this individual provider in the NPPES registry on June 19, 2020.
Where is Ivan Leroux located?
Ivan Leroux practices at 330 E 7th St Fl 2, Upland, CA 91786. The listed phone number is (800) 213-8517.
What is Ivan Leroux's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Ivan Leroux enrolled in Medicare?
Yes. Ivan Leroux is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Ivan Leroux's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ivan Leroux reassigns Medicare benefits to 2 organizations: Southern California Permanente Medical Group (Anaheim, CA) and The Huntington Medical Foundation (Pasadena, 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 Ivan Leroux'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 Ivan Leroux was last updated on December 22, 2023. 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.