BARBARA EVA LIU D.O
NPI 1669811055
Family Medicine in Walnut Creek, CA
About Barbara Eva Liu D.o NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
BARBARA EVA LIU D.O (NPI 1669811055) is an individual family medicine provider in Walnut Creek, California, licensed in California (20A14674) and active in the NPI registry since June 2013. She is enrolled in Medicare PECOS.
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)
Barbara Eva Liu D.o is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Barbara Liu reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Richmond, CA 94801
- 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 94598 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.
WALNUT CREEK, CA 94598
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 Barbara Liu's NPI number?
The NPI number for Barbara Liu is 1669811055. It was assigned to this individual provider in the NPPES registry on June 18, 2013.
Where is Barbara Liu located?
Barbara Liu practices at 320 Lennon Ln, Walnut Creek, CA 94598. The listed phone number is (925) 906-2000.
What is Barbara Liu's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Barbara Liu enrolled in Medicare?
Yes. Barbara Liu is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Barbara Liu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Barbara Liu reassigns Medicare benefits to Permanente Medical Group Inc (Richmond, 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 Barbara Liu'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 Barbara Liu was last updated on August 9, 2024. 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.
# Barbara Eva Liu, D.O · NPI 1669811055
Family Medicine physician in Walnut Creek, California. Individual provider, active in the CMS NPPES registry since June 18, 2013.
## Identity
- **NPI:** 1669811055 (Entity type: Individual)
- **Enumerated:** June 18, 2013
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 20A14674 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 320 LENNON LN, Walnut Creek, CA 94598-2419
- **Phone:** (925) 906-2000
## 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 1235226531, Richmond, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 9, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1669811055) · Data from the CMS NPPES public registry.