CHENCHEN ZHANG
NPI 1366052680
Audiologist in Concord, CA
About Chenchen Zhang NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHENCHEN ZHANG (NPI 1366052680) is an individual audiologist in Concord, California, licensed in California (3528) and active in the NPI registry since August 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 (PECOS)
Chenchen Zhang is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Chenchen Zhang reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Vallejo, CA 94589
- 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.
Other Providers at the Same Location NPPES 2
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 Chenchen Zhang's NPI number?
The NPI number for Chenchen Zhang is 1366052680. It was assigned to this individual provider in the NPPES registry on August 1, 2020.
Where is Chenchen Zhang located?
Chenchen Zhang practices at 2280 Diamond Blvd Ste 520, Concord, CA 94520. The listed phone number is (925) 682-1951.
What is Chenchen Zhang's specialty?
The primary specialty registered for this NPI is Audiologist with taxonomy code 231H00000X.
Is Chenchen Zhang enrolled in Medicare?
Yes. Chenchen Zhang is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Chenchen Zhang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Chenchen Zhang reassigns Medicare benefits to Permanente Medical Group Inc (Vallejo, 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 Chenchen Zhang'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 Chenchen Zhang was last updated on July 19, 2022. 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.
# Chenchen Zhang · NPI 1366052680
Audiologist provider in Concord, California. Individual provider, active in the CMS NPPES registry since August 1, 2020.
## Identity
- **NPI:** 1366052680 (Entity type: Individual)
- **Enumerated:** August 1, 2020
- **Primary specialty:** Audiologist · taxonomy 231H00000X
- **State license:** 3528 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 2280 DIAMOND BLVD STE 520, Concord, CA 94520-5719
- **Phone:** (925) 682-1951
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Bills Medicare through:** Permanente Medical Group Inc (NPI 1336222397, Vallejo, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 19, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1366052680) · Data from the CMS NPPES public registry.