STEPHANIE CHU MD
NPI 1598842452
Internal Medicine - Rheumatology in Santa Clara, CA
About Stephanie Chu Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEPHANIE CHU MD (NPI 1598842452) is an individual rheumatology provider in Santa Clara, California, licensed in California (G69977) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Stephanie Chu Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Stephanie Chu reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Santa Clara, CA 95051
- Reassigned Medicare billing, California enrollment
- 20,078 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 95051 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
SANTA CLARA, CA 95051
SANTA CLARA, CA 95051
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 Chu's NPI number?
The NPI number for Stephanie Chu is 1598842452. It was assigned to this individual provider in the NPPES registry on October 31, 2006.
Where is Stephanie Chu located?
Stephanie Chu practices at 710 Lawrence Expy, Santa Clara, CA 95051. The listed phone number is (408) 851-1000.
What is Stephanie Chu's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is Stephanie Chu enrolled in Medicare?
Yes. Stephanie Chu is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Stephanie Chu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephanie Chu reassigns Medicare benefits to Permanente Medical Group Inc (Santa Clara, 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 Chu'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 Chu 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 Chu, MD · NPI 1598842452
Rheumatology physician in Santa Clara, California. Individual provider, active in the CMS NPPES registry since October 31, 2006.
## Identity
- **NPI:** 1598842452 (Entity type: Individual)
- **Enumerated:** October 31, 2006
- **Primary specialty:** Internal Medicine - Rheumatology · taxonomy 207RR0500X
- **State license:** G69977 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 710 LAWRENCE EXPY, Santa Clara, CA 95051-5173
- **Phone:** (408) 851-1000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Permanente Medical Group Inc (NPI 1073606299, Santa Clara, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 2, 2021
- **Other identifiers:** Medicaid 00G699770 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1598842452) · Data from the CMS NPPES public registry.