DR. ANN NGUYEN O.D.
NPI 1780098459
Optometrist in Federal Way, WA
About Dr. Ann Nguyen O.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ANN NGUYEN O.D. (NPI 1780098459) is an individual optometrist in Federal Way, Washington, licensed in Washington (OD60461466) and active in the NPI registry since June 2014. She is enrolled in Medicare PECOS and is a graduate of Southern California College Of Optometry (2014).
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
Dr. Ann Nguyen 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
3Medicare enrollment records show Ann Nguyen reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Roseville, CA 95661
- Reassigned Medicare billing, California enrollment
- 30 clinicians in this Medicare group
Bakersfield, CA 93312
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1982863783 (California)
- 5,228 clinicians in this Medicare group
Encino, CA 91436
- Reassigned Medicare billing, California enrollment
- 3 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 5
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 98023 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
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 Ann Nguyen's NPI number?
The NPI number for Ann Nguyen is 1780098459. It was assigned to this individual provider in the NPPES registry on June 20, 2014.
Where is Ann Nguyen located?
Ann Nguyen practices at 824 SW 349th Way, Federal Way, WA 98023. The listed phone number is (323) 813-6438.
What is Ann Nguyen's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Ann Nguyen enrolled in Medicare?
Yes. Ann 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 Ann Nguyen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ann Nguyen reassigns Medicare benefits to 3 organizations: Fyidoctors Of California, Inc. (Roseville, CA), Southern California Permanente Medical Group (Bakersfield, CA) and Encino Optometric Center Corp. (Encino, 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 Ann Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ann Nguyen accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas and 1 other insurer list Ann 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 Ann Nguyen was last updated on October 27, 2023. 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.
# Dr. Ann Nguyen, O.D. · NPI 1780098459
Optometrist provider in Federal Way, Washington. Individual provider, active in the CMS NPPES registry since June 20, 2014.
## Identity
- **NPI:** 1780098459 (Entity type: Individual)
- **Enumerated:** June 20, 2014
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** OD60461466 (Washington)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 824 SW 349TH WAY, Federal Way, WA 98023-8444
- **Phone:** (323) 813-6438
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Fyidoctors Of California, Inc. (NPI 1437718418, Roseville, CA); Southern California Permanente Medical Group (NPI 1316572753, Bakersfield, CA); Encino Optometric Center Corp. (NPI 1013193127, Encino, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Southern California College Of Optometry, class of 2014
## Record status
- **NPPES last updated:** October 27, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1780098459) · Data from the CMS NPPES public registry.