PETER P. CHAU MD
NPI 1114960002
Emergency Medicine in Vallejo, CA
About Peter P. Chau Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PETER P. CHAU MD (NPI 1114960002) is an individual emergency medicine provider in Vallejo, California, licensed in California (G68649) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Oklahoma College Of Medicine (1987).
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
Peter P. Chau 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 Reassignments
2Medicare enrollment records show Peter Chau reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Vallejo, CA 94589
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
San Francisco, CA 94133
- Reassigned Medicare billing, California enrollment
- 27 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
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 94589 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
VALLEJO, CA 94589
VALLEJO, CA 94589
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 Peter Chau's NPI number?
The NPI number for Peter Chau is 1114960002. It was assigned to this individual provider in the NPPES registry on June 14, 2006.
Where is Peter Chau located?
Peter Chau practices at 975 Sereno Dr, Vallejo, CA 94589. The listed phone number is (707) 651-1000.
What is Peter Chau's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Peter Chau enrolled in Medicare?
Yes. Peter Chau 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 Peter Chau's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Peter Chau reassigns Medicare benefits to 2 organizations: Permanente Medical Group Inc (Vallejo, CA) and California Emergency Associates A California Medical Corporation (San Francisco, CA). 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 Peter Chau'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 Peter Chau was last updated on March 31, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Peter P. Chau, MD · NPI 1114960002
Emergency Medicine physician in Vallejo, California. Individual provider, active in the CMS NPPES registry since June 14, 2006.
## Identity
- **NPI:** 1114960002 (Entity type: Individual)
- **Enumerated:** June 14, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** G68649 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 975 SERENO DR, Vallejo, CA 94589-2441
- **Phone:** (707) 651-1000
## 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): Permanente Medical Group Inc (NPI 1336222397, Vallejo, CA); California Emergency Associates A California Medical Corporation (NPI 1437611936, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Oklahoma College Of Medicine, class of 1987
## Record status
- **NPPES last updated:** March 31, 2010
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Source: [NPI Profile](https://npiprofile.com/npi/1114960002) · Data from the CMS NPPES public registry.