THUVAN NGUYEN OD
NPI 1932084415
Optometrist in Oakland, CA
About Thuvan Nguyen Od NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THUVAN NGUYEN OD (NPI 1932084415) is an individual optometrist in Oakland, California, licensed in California (36005) and active in the NPI registry since August 2025. The provider is enrolled in Medicare PECOS and is a graduate of University Of California - School Of Optometry (2025).
NPPES Registry Identity
Specialties & Licenses
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
Thuvan Nguyen Od 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 Thuvan Nguyen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Oakland, CA 94618
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Rockridge Optometry
- 6 clinicians in this Medicare group
Oakland, CA 94618
- Reassigned Medicare billing, California enrollment
- 5 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 94618 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 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
OAKLAND, CA 94618
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 Thuvan Nguyen's NPI number?
The NPI number for Thuvan Nguyen is 1932084415. It was assigned to this individual provider in the NPPES registry on August 6, 2025.
Where is Thuvan Nguyen located?
Thuvan Nguyen practices at 5321 College Ave, Oakland, CA 94618. The listed phone number is (510) 655-3797.
What is Thuvan Nguyen's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Thuvan Nguyen enrolled in Medicare?
Yes. Thuvan Nguyen 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 Thuvan Nguyen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thuvan Nguyen reassigns Medicare benefits to 2 organizations: Sakai And Junge Optometry Corp. (Oakland, CA) and Sakai And Junge Optometry Corp. (Oakland, 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 Thuvan Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Thuvan Nguyen accept?
Health plans from Providence Health Plan list Thuvan Nguyen 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 Thuvan Nguyen was last updated on November 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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.
# Thuvan Nguyen, OD · NPI 1932084415
Optometrist provider in Oakland, California. Individual provider, active in the CMS NPPES registry since August 6, 2025.
## Identity
- **NPI:** 1932084415 (Entity type: Individual)
- **Enumerated:** August 6, 2025
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** 36005 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 5321 COLLEGE AVE, Oakland, CA 94618-1416
- **Phone:** (510) 655-3797
## 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): Sakai And Junge Optometry Corp. (NPI 1760532659, Oakland, CA); Sakai And Junge Optometry Corp. (NPI 1760532659, Oakland, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California - School Of Optometry, class of 2025
## Record status
- **NPPES last updated:** November 13, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1932084415) · Data from the CMS NPPES public registry.