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DR. TUAN TU NGUYEN OD
NPI 1194737916
Optometrist in Portland, OR

Active since August 12, 2006PECOS EnrolledAccepts Medicare Assignment
1274 SE 182ND AVE, PORTLAND, OR 97233(503) 669-1992(503) 618-8262 Get Directions Write a Review

NPPES record last updated: March 5, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Tuan Tu Nguyen Od NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. TUAN TU NGUYEN OD (NPI 1194737916) is an individual optometrist in Portland, Oregon, licensed in Oregon (2987T) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of Southern California College Of Optometry (2004).

NPPES Registry Identity

NPI1194737916
Entity TypeIndividualMale
Primary Taxonomy152W00000X
Provider Legal NameDR. TUAN TU NGUYENCredential: OD
Location Address1274 SE 182ND AVEPortland, OR 97233
Mailing Address929 Ne 181st AvePortland, OR 97230-6757 · (503) 669-1992 · Fax (503) 618-8262
Phone(503) 669-1992
Fax(503) 618-8262
Sole ProprietorNo
Medical School CMSSouthern California College Of OptometryGraduated 2004
Enumeration DateAugust 12, 2006
Last NPPES UpdateMarch 5, 2018
✔ NPI 1194737916 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers
Taxonomy Code152W00000X
License✔ Licensed in OR · 2987T
Definition
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
1274 SE 182ND AVE, Portland, OR 97233
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, BridgeSpan Health Company, Moda Health Plan, Inc. and more.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. Tuan Tu 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.

PECOS PAC ID7214958784
PECOS Enrollment IDI20051212000767
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Tuan Nguyen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Gresham Vision Source PC
1.1 mi
Optometrist
929 NE 181ST AVE
Portland, OR 97230
  • Reassigned Medicare billing, Oregon enrollment
NPI 1346323367 (503) 669-1992

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 2

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
27 services17 patients
Photography of the retina 92250
Photography of the retina, also known as retinal imaging, is a non-invasive procedure that captures images of the back of your eye. This helps doctors identify and monitor conditions like glaucoma, macular degeneration, or diabetic retinopathy. It's painless and quick, often part of a routine eye exam.
21 services21 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97233 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$134.16 typical visit price
range $58.99 – $176.88
Typical copayment $33.54 (range $14.74 – $44.22)
Most-billed visit code 99204
Established Patient
$73.28 typical visit price
range $19.32 – $144.79
Typical copayment $18.32 (range $4.83 – $36.19)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Tuan Nguyen's NPI number?

The NPI number for Tuan Nguyen is 1194737916. It was assigned to this individual provider in the NPPES registry on August 12, 2006.

Where is Tuan Nguyen located?

Tuan Nguyen practices at 1274 SE 182nd Ave, Portland, OR 97233. The listed phone number is (503) 669-1992.

What is Tuan Nguyen's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is Tuan Nguyen enrolled in Medicare?

Yes. Tuan 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 organization bills Medicare for Tuan Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Tuan Nguyen reassigns Medicare benefits to Gresham Vision Source PC (Portland, OR). 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 Tuan Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Tuan Nguyen accept?

Health plans from Anthem Blue Cross and Blue Shield, BridgeSpan Health Company, Moda Health Plan, Inc., PacificSource Health Plans and Providence Health Plan and 1 other insurer list Tuan 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 Tuan Nguyen was last updated on March 5, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.