BRENNAN CHANG
NPI 1306473343
Emergency Medicine in Riverside, CA
About Brennan Chang NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
BRENNAN CHANG (NPI 1306473343) is an individual emergency medicine provider in Riverside, California, licensed in New York (326747) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS and is a graduate of New York University School Of Medicine (2020).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
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
Brennan Chang 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 Brennan Chang reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Riverside, CA 92501
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1740235258 (California)
- 2,323 clinicians in this Medicare group
Davenport, IA 52803
- Reassigned Medicare billing, Iowa enrollment
- 53 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.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92501 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.
RIVERSIDE, CA 92501
RIVERSIDE, CA 92501
RIVERSIDE, CA 92501
RIVERSIDE, CA 92501
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 Brennan Chang's NPI number?
The NPI number for Brennan Chang is 1306473343. It was assigned to this individual provider in the NPPES registry on March 26, 2020.
Where is Brennan Chang located?
Brennan Chang practices at 4445 Magnolia Ave, Riverside, CA 92501. The listed phone number is (951) 788-3000.
What is Brennan Chang's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Brennan Chang enrolled in Medicare?
Yes. Brennan Chang 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 Brennan Chang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Brennan Chang reassigns Medicare benefits to 2 organizations: Cep America - California (Riverside, CA) and Vituity-Iowa PLLC (Davenport, IA). 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 Brennan Chang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Brennan Chang accept?
Health plans from Wellmark Health Plan of Iowa, Inc. list Brennan Chang as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Brennan Chang was last updated on November 20, 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.
# Brennan Chang · NPI 1306473343
Emergency Medicine physician in Riverside, California. Individual provider, active in the CMS NPPES registry since March 26, 2020.
## Identity
- **NPI:** 1306473343 (Entity type: Individual)
- **Enumerated:** March 26, 2020
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 326747 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 4445 MAGNOLIA AVE, Riverside, CA 92501-4135
- **Phone:** (951) 788-3000
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Cep America - California (NPI 1386750578, Riverside, CA); Vituity-Iowa PLLC (NPI 1437932928, Davenport, IA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** New York University School Of Medicine, class of 2020
## Record status
- **NPPES last updated:** November 20, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1306473343) · Data from the CMS NPPES public registry.