DR. JAVIER DE LA ROSA JR. MD
NPI 1033798780
Student in an Organized Health Care Education/Training Program in Fontana, CA
About Dr. Javier De La Rosa Jr. Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JAVIER DE LA ROSA JR. MD (NPI 1033798780) is an individual student in an organized health care education/training program in Fontana, California and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS and is a graduate of University Of Southern California Keck School Of Medicine (2021).
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. Javier De La Rosa Jr. 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 Reassignment
Medicare enrollment records show Javier De La Rosa reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Fontana, CA 92335
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1952333460 (California)
- 5,228 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.
FONTANA, CA 92335
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 Javier De La Rosa's NPI number?
The NPI number for Javier De La Rosa is 1033798780. It was assigned to this individual provider in the NPPES registry on April 7, 2021.
Where is Javier De La Rosa located?
Javier De La Rosa practices at 9961 Sierra Ave, Fontana, CA 92335. The listed phone number is (833) 574-2273.
What is Javier De La Rosa's specialty?
The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.
Is Javier De La Rosa enrolled in Medicare?
Yes. Javier De La Rosa 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 organization bills Medicare for Javier De La Rosa's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Javier De La Rosa reassigns Medicare benefits to Southern California Permanente Medical Group (Fontana, 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 Javier De La Rosa'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 Javier De La Rosa was last updated on December 3, 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.
# Dr. Javier De La Rosa Jr., MD · NPI 1033798780
Student in an Organized Health Care Education/Training Program provider in Fontana, California. Individual provider, active in the CMS NPPES registry since April 7, 2021.
## Identity
- **NPI:** 1033798780 (Entity type: Individual)
- **Enumerated:** April 7, 2021
- **Primary specialty:** Student in an Organized Health Care Education/Training Program · taxonomy 390200000X
- **Sole proprietor:** No
## Practice location
- **Address:** 9961 SIERRA AVE, Fontana, CA 92335-6720
- **Phone:** (833) 574-2273
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Southern California Permanente Medical Group (NPI 1689606196, Fontana, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Southern California Keck School Of Medicine, class of 2021
## Record status
- **NPPES last updated:** December 3, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1033798780) · Data from the CMS NPPES public registry.