JOANNA LYNN CHAN
NPI 1013094242
Audiologist in Concord, CA
About Joanna Lynn Chan NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOANNA LYNN CHAN (NPI 1013094242) is an individual audiologist in Concord, California, licensed in California (AU2360) and active in the NPI registry since November 2006.
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)
Joanna Lynn Chan is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Joanna Chan 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 12
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CONCORD, CA 94520
CONCORD, CA 94520
CONCORD, CA 94520
CONCORD, CA 94520
CONCORD, CA 94520
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 Joanna Chan's NPI number?
The NPI number for Joanna Chan is 1013094242. It was assigned to this individual provider in the NPPES registry on November 1, 2006.
Where is Joanna Chan located?
Joanna Chan practices at 2415 High School Ave #300, Concord, CA 94520. The listed phone number is (925) 616-8101.
What is Joanna Chan's specialty?
The primary specialty registered for this NPI is Audiologist with taxonomy code 231H00000X.
Is Joanna Chan enrolled in Medicare?
Yes. Joanna Chan is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Joanna Chan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joanna Chan 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 Joanna Chan'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 Joanna Chan was last updated on March 6, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Joanna Lynn Chan · NPI 1013094242
Audiologist provider in Concord, California. Individual provider, active in the CMS NPPES registry since November 1, 2006.
## Identity
- **NPI:** 1013094242 (Entity type: Individual)
- **Enumerated:** November 1, 2006
- **Primary specialty:** Audiologist · taxonomy 231H00000X
- **State license:** AU2360 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 2415 HIGH SCHOOL AVE, #300, Concord, CA 94520-1800
- **Phone:** (925) 616-8101
## 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:** March 6, 2008
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Source: [NPI Profile](https://npiprofile.com/npi/1013094242) · Data from the CMS NPPES public registry.