STEPHANIE VALENZUELA MD
NPI 1932360971
Anesthesiology in Fontana, CA
About Stephanie Valenzuela Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEPHANIE VALENZUELA MD (NPI 1932360971) is an individual anesthesiology provider in Fontana, California, licensed in California (A119456) and active in the NPI registry since June 2008. She is enrolled in Medicare PECOS and is a graduate of Loma Linda University School Of Medicine (2008).
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
Stephanie Valenzuela 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 Stephanie Valenzuela 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
- 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
FONTANA, CA 92335
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 Stephanie Valenzuela's NPI number?
The NPI number for Stephanie Valenzuela is 1932360971. It was assigned to this individual provider in the NPPES registry on June 23, 2008.
Where is Stephanie Valenzuela located?
Stephanie Valenzuela practices at 9985 Sierra Ave, Fontana, CA 92335. The listed phone number is (909) 302-4938.
What is Stephanie Valenzuela's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Stephanie Valenzuela enrolled in Medicare?
Yes. Stephanie Valenzuela 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 Stephanie Valenzuela's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephanie Valenzuela 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 Stephanie Valenzuela'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 Stephanie Valenzuela was last updated on December 2, 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.
# Stephanie Valenzuela, MD · NPI 1932360971
Anesthesiology physician in Fontana, California. Individual provider, active in the CMS NPPES registry since June 23, 2008.
## Identity
- **NPI:** 1932360971 (Entity type: Individual)
- **Enumerated:** June 23, 2008
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** A119456 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 9985 SIERRA AVE, Fontana, CA 92335-6720
- **Phone:** (909) 302-4938
## 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:** Loma Linda University School Of Medicine, class of 2008
## Record status
- **NPPES last updated:** December 2, 2021
---
Source: [NPI Profile](https://npiprofile.com/npi/1932360971) · Data from the CMS NPPES public registry.