EILEEN WUN POON O.D.
NPI 1083760482
Optometrist in Gilroy, CA
About Eileen Wun Poon O.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
EILEEN WUN POON O.D. (NPI 1083760482) is an individual optometrist in Gilroy, California, licensed in California (10525T) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS and is a graduate of Other (1995).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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
Eileen Wun Poon 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 Reassignment
Medicare enrollment records show Eileen Poon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Santa Clara, CA 95051
- 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 95020 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.
GILROY, CA 95020
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 Eileen Poon's NPI number?
The NPI number for Eileen Poon is 1083760482. It was assigned to this individual provider in the NPPES registry on January 26, 2007. The provider is also known as Dr. Eileen Wun Poon O.D..
Where is Eileen Poon located?
Eileen Poon practices at 7520 Arroyo Cir Station 2, Gilroy, CA 95020. The listed phone number is (408) 848-7040.
What is Eileen Poon's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Eileen Poon enrolled in Medicare?
Yes. Eileen Poon 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 organization bills Medicare for Eileen Poon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Eileen Poon reassigns Medicare benefits to Permanente Medical Group Inc (Santa Clara, 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 Eileen Poon'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 Eileen Poon was last updated on January 11, 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.