ASHLEY CHIANG TJOE O.D.
NPI 1679920060
Optometrist in Walnut Creek, CA
About Ashley Chiang Tjoe O.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ASHLEY CHIANG TJOE O.D. (NPI 1679920060) is an individual optometrist in Walnut Creek, California, licensed in California (33369) and active in the NPI registry since May 2016. She is enrolled in Medicare PECOS and is a graduate of Southern California College Of Optometry (2015).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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
Ashley Chiang Tjoe O.d. 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 Ashley Tjoe reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
South Pasadena, CA 91030
- Reassigned Medicare billing, California enrollment
- 9 clinicians in this Medicare group
San Diego, CA 92128
- Reassigned Medicare billing, California enrollment
- 236 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 6
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 Ashley Tjoe's NPI number?
The NPI number for Ashley Tjoe is 1679920060. It was assigned to this individual provider in the NPPES registry on May 16, 2016. The provider is also known as Ashley Chiang O.D..
Where is Ashley Tjoe located?
Ashley Tjoe practices at 2801 Ygnacio Valley Rd Suite A, Walnut Creek, CA 94598. The listed phone number is (925) 933-2600.
What is Ashley Tjoe's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Ashley Tjoe enrolled in Medicare?
Yes. Ashley Tjoe 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 Ashley Tjoe's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ashley Tjoe reassigns Medicare benefits to 2 organizations: South Pasadena Optometric Group, Inc. (South Pasadena, CA) and Total Vision PC (San Diego, 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 Ashley Tjoe's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ashley Tjoe accept?
Health plans from Providence Health Plan list Ashley Tjoe 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 Ashley Tjoe was last updated on May 27, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Ashley Chiang Tjoe, O.D. · NPI 1679920060
Optometrist provider in Walnut Creek, California. Individual provider, active in the CMS NPPES registry since May 16, 2016.
## Identity
- **NPI:** 1679920060 (Entity type: Individual)
- **Enumerated:** May 16, 2016
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** 33369 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2801 YGNACIO VALLEY RD, SUITE A, Walnut Creek, CA 94598-3587
- **Phone:** (925) 933-2600
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): South Pasadena Optometric Group, Inc. (NPI 1750416566, South Pasadena, CA); Total Vision PC (NPI 1356813711, San Diego, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Southern California College Of Optometry, class of 2015
## Record status
- **NPPES last updated:** May 27, 2016
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Source: [NPI Profile](https://npiprofile.com/npi/1679920060) · Data from the CMS NPPES public registry.