TAMMY T NGUYEN
NPI 1457973992
Optometrist in Tigard, OR
About Tammy T Nguyen NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TAMMY T NGUYEN (NPI 1457973992) is an individual optometrist in Tigard, Oregon, licensed in Oregon (ATI4550) and active in the NPI registry since May 2020. She is enrolled in Medicare PECOS and is a graduate of Pacific University - College Of Optometry (2020).
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
Tammy T Nguyen 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 Tammy Nguyen reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Tigard, OR 97223
- Reassigned Medicare billing, Oregon enrollment
- 10 clinicians in this Medicare group
Beaverton, OR 97007
- Reassigned Medicare billing, Oregon enrollment
- 9 clinicians in this Medicare group
West Linn, OR 97068
- Reassigned Medicare billing, Oregon enrollment
- 8 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 3
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 97223 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 3
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 Tammy Nguyen's NPI number?
The NPI number for Tammy Nguyen is 1457973992. It was assigned to this individual provider in the NPPES registry on May 7, 2020.
Where is Tammy Nguyen located?
Tammy Nguyen practices at 9169 SW Burnham St, Tigard, OR 97223. The listed phone number is (503) 639-5115.
What is Tammy Nguyen's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Tammy Nguyen enrolled in Medicare?
Yes. Tammy 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 Tammy Nguyen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tammy Nguyen reassigns Medicare benefits to 3 organizations: Tigard Vision Center, Inc. (Tigard, OR), Murray Scholls Optique Inc (Beaverton, OR) and West Linn Vision Center Inc (West Linn, OR). 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 Tammy Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Tammy Nguyen accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and BridgeSpan Health Company and 4 other insurers list Tammy 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 Tammy Nguyen was last updated on July 9, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Tammy T Nguyen · NPI 1457973992
Optometrist provider in Tigard, Oregon. Individual provider, active in the CMS NPPES registry since May 7, 2020.
## Identity
- **NPI:** 1457973992 (Entity type: Individual)
- **Enumerated:** May 7, 2020
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** ATI4550 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 9169 SW BURNHAM ST, Tigard, OR 97223-6105
- **Phone:** (503) 639-5115
## 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): Tigard Vision Center, Inc. (NPI 1821083635, Tigard, OR); Murray Scholls Optique Inc (NPI 1598751802, Beaverton, OR); West Linn Vision Center Inc (NPI 1043769227, West Linn, OR) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Pacific University - College Of Optometry, class of 2020
## Record status
- **NPPES last updated:** July 9, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1457973992) · Data from the CMS NPPES public registry.