2026 NPPES data Vision Therapy Optometrist NPI 1609527613 OD
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KEIJI SHIYOMURA, OD

Vision Therapy Optometrist in BEND, Oregon. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
165
Medicare Part D claims · 55 beneficiaries · Vision Therapy Optometrist avg: 209
Generic prescribing
58%
generic claims · 42% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$492.16
13 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

KEIJI SHIYOMURA, OD filed 165 Medicare Part D claims in 2023 as a Vision Therapy Optometrist in BEND, Oregon, prescribing 58% generic.

165
Part D claims, 2023
58%
generic prescribing
$492.16
industry payments (Sunshine Act)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

KEIJI SHIYOMURA, OD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

165 35th percentile higher than 35% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about KEIJI SHIYOMURA, OD?

Quality data not reported

NPI registry status

Active

Issued 01/11/2022

NPI 1609527613

Primary specialty

Vision Therapy Optometrist

Rare

369 US NPIs in this specialty

Medicare Part D claims

165 21% vs specialty avg

2023 prescription claims

Specialty avg: 209

Specialty distribution in Oregon

How Vision Therapy Optometrist compares to other specialties among Oregon providers

Oregon providers

Vision Therapy Optometrist share within Oregon

1. Vision Therapy Optometrist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Vision Therapy Optometrist share within Oregon

Specialty board-certification context

Estimated specialty board-certified rate — Vision Therapy Optometrist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Vision Therapy Optometrist ABMS/AOA estimate

Est. board-certified rate (Vision Therapy Optometrist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Vision Therapy Optometrist) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

KEIJI SHIYOMURA, OD appears in the CMS NPPES registry as a Vision Therapy Optometrist provider holding OD credentials at 61535 S HIGHWAY 97 STE 16, BEND, OR, 97702, with a listed phone of (541) 389-4774. NPI 1609527613 was issued on 01/11/2022. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SHIYOMURA most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 165 prescription claims written by this provider, covering 55 Medicare beneficiaries and totaling roughly $17K in drug spend, split 42% brand-name and 58% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Vision Therapy Optometrist is a narrow specialty nationwide, with 369 enrolled providers across 42 states and an average of 209 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

61535 S HIGHWAY 97 STE 16
BEND, OR 97702

Provider Details

NPI 1609527613
Specialty Vision Therapy Optometrist
Credentials OD
Gender Male
NPI Issued 01/11/2022

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for KEIJI SHIYOMURA, OD. Source: openpaymentsdata.cms.gov.

Total received

$492

Largest payer

Alcon Vision LLC

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Above average

KEIJI SHIYOMURA, OD — brand share 42.0%
Specialty average (est.)

42% brand-name claims vs 58% generic, on 165 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

165
Total Claims
$17K
Total Drug Cost
55
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
223
Total Day Supply
5,952
Brand vs Generic
42% brand / 58% generic
Brand Drug Cost
$15K
Generic Drug Cost
$2K

Patient Demographics

Average Patient Age
76.1 years
Avg HCC Risk Score
1.22
Gender Split
56% female / 44% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What KEIJI SHIYOMURA, OD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Latanoprost
76
Tobramycin-Dexamethasone
Tobramycin/Dexamethasone
16
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
14
Restasis
Cyclosporine
11

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Vision Therapy Optometrist Overview

How KEIJI SHIYOMURA, OD fits within the Vision Therapy Optometrist landscape nationally.

369
Vision Therapy Optometrist Providers in US
42
States with Vision Therapy Optometrist
209
Avg Claims per Provider

KEIJI SHIYOMURA, OD's 165 claims are below the specialty average of 209.

Nearby Vision Therapy Optometrist Providers in Oregon

Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as SHIYOMURA.

Compare Vision Therapy Optometrist nationally: see state-by-state distribution →

Frequently Asked Questions

What is KEIJI SHIYOMURA, OD's specialty?
KEIJI SHIYOMURA, OD specializes in Vision Therapy Optometrist and practices in BEND, Oregon. Credentials: OD.
How much does KEIJI SHIYOMURA, OD prescribe under Medicare Part D?
In 2023, KEIJI SHIYOMURA, OD wrote 165 Medicare Part D claims totaling $17K in drug costs for 55 beneficiaries.
Where is KEIJI SHIYOMURA, OD located?
KEIJI SHIYOMURA, OD is located at 61535 S HIGHWAY 97 STE 16, BEND, OR, 97702. Phone: (541) 389-4774.
What is KEIJI SHIYOMURA, OD's NPI number?
KEIJI SHIYOMURA, OD's National Provider Identifier (NPI) is 1609527613, issued on 01/11/2022.
Does KEIJI SHIYOMURA, OD prescribe more brand-name or generic drugs?
KEIJI SHIYOMURA, OD's prescribing is 42% brand-name and 58% generic drugs by claim count, with $15K in brand drug costs.
How many Vision Therapy Optometrist providers are there in the US?
There are 369 Vision Therapy Optometrist providers across 42 states in the US. The average Vision Therapy Optometrist provider writes 209 Medicare Part D claims per year.
What drugs does KEIJI SHIYOMURA, OD prescribe most often?
Based on 2023 Medicare Part D data, KEIJI SHIYOMURA, OD's most frequently prescribed drugs include Latanoprost, Tobramycin-Dexamethasone, Dorzolamide-Timolol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KEIJI SHIYOMURA, OD accept Medicare?
KEIJI SHIYOMURA, OD appears in CMS Medicare data with 165 Part D claims and 55 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KEIJI SHIYOMURA, OD's credentials?
KEIJI SHIYOMURA, OD's NPI is 1609527613 with credentials OD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology