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DR. STEVEN G IWASA O.D.
NPI 1003985466
Optometrist in Weiser, ID

Active since November 07, 2006Opted out of Medicare · through Jul 1, 2027
36 W COURT ST, WEISER, ID 83672(208) 414-1600(208) 414-1607 Get Directions Write a Review

NPPES record last updated: July 9, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Steven G Iwasa O.d. NPPES

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

DR. STEVEN G IWASA O.D. (NPI 1003985466) is an individual optometrist in Weiser, Idaho, licensed in Idaho (ODD-649) and active in the NPI registry since November 2006. He has opted out of Medicare through July 1, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1003985466
Entity TypeIndividualMale
Primary Taxonomy152W00000X
Provider Legal NameDR. STEVEN G IWASACredential: O.D.
Location Address36 W COURT STWeiser, ID 83672-1941
Mailing Address36 W Court StWeiser, ID 83672-1941 · (208) 414-1600 · Fax (208) 414-1607
Phone(208) 414-1600
Fax(208) 414-1607
Sole ProprietorYes
Enumeration DateNovember 7, 2006
Last NPPES UpdateJuly 9, 2007
✔ NPI 1003985466 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 ID · ODD-649
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.
36 W COURT ST, Weiser, ID 83672
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Other Identifiers 3

Medicare UPINT44379ID
Medicare ID-Type Unspecified1591858ID · Medicare
Medicare ID-Type UnspecifiedP00102776ID · Rr Medicare

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Steven G Iwasa O.d. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from July 1, 2025 through July 1, 2027.

Opt-Out Effective DateJuly 1, 2025
Opt-Out In Effect ThroughJuly 1, 2027Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 83672 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
$121.27 typical visit price
range $52.44 – $160.17
Typical copayment $30.31 (range $13.11 – $40.04)
Most-billed visit code 99204
Established Patient
$65.77 typical visit price
range $16.68 – $130.93
Typical copayment $16.44 (range $4.17 – $32.73)
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.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

STEVEN G IWASA OD PLLC
Optometrist
36 W COURT ST
WEISER, ID 83672
Washington County (208) 414-1600

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 Steven Iwasa's NPI number?

The NPI number for Steven Iwasa is 1003985466. It was assigned to this individual provider in the NPPES registry on November 7, 2006.

Where is Steven Iwasa located?

Steven Iwasa practices at 36 W Court St, Weiser, ID 83672. The listed phone number is (208) 414-1600.

What is Steven Iwasa's specialty?

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

Is Steven Iwasa enrolled in Medicare?

No. Steven Iwasa has opted out of Medicare through July 1, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Steven Iwasa was last updated on July 9, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.