DANIEL IWASA, O.D.
Optometrist in PAYETTE, Idaho. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.
What the federal data shows
DANIEL IWASA, O.D. reported a CMS MIPS final score of 50/100 — below the 83.1 national average — and filed 637 Medicare Part D claims in 2023.
- 50/100
- MIPS score · -33 vs avg
- 637
- Part D claims, 2023
- 51%
- generic prescribing
- $273.19
- 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.
DANIEL IWASA, O.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure
50 4th percentile higher than 4% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
What does the federal data show about DANIEL IWASA, O.D.?
Below national averagePrimary specialty
Medicare Part D claims
MIPS final score
Specialty distribution in Idaho
How Optometrist compares to other specialties among Idaho providers
Optometrist share within Idaho
Optometrist is one of the more visible NUCC categories in Idaho
Each bar reflects the share of in-state providers whose primary NUCC taxonomy matches the specialty. Long tail of ~690 NUCC codes folded into "Other" to keep the comparison legible.
Medicare quality performance — MIPS
DANIEL IWASA, O.D.'s 2023 MIPS final score plotted against the Optometrist national average
- MIPS Final Score
- 50/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Optometrist) — 50/100 vs national avg 83.1
Quality benchmarks
- National MIPS avg 2023 reporting year
- Quality dim CMS Quality category
- Specialty volume Optometrist US NPIs
50/100 MIPS final score — 33.1 pts below the 83.1 national average
Quality, Cost, Promoting Interoperability, and Improvement Activities composite score for the 2023 performance year. Specialty: Optometrist. Quality dim: 0.
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).
DANIEL IWASA, O.D. is a Optometrist provider practicing in PAYETTE, Idaho, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: O.D.. NPI: 1750577219. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.
DANIEL IWASA, O.D. appears in the CMS NPPES registry as a Optometrist provider holding O.D. credentials at 915 3RD AVE N, PAYETTE, ID, 83661, with a listed phone of (208) 642-2151. NPI 1750577219 was issued on 09/19/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what IWASA 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 637 prescription claims written by this provider, covering 266 Medicare beneficiaries and totaling roughly $60K in drug spend, split 49% brand-name and 51% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 50/100 for the 2023 performance year (Quality 0), compared with the national average of 83.1.
Optometrist is a high-volume specialty nationwide, with 60,463 enrolled providers across 56 states and an average of 257 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
Provider Details
| NPI | 1750577219 |
|---|---|
| Specialty | Optometrist |
| Credentials | O.D. |
| Gender | Male |
| NPI Issued | 09/19/2007 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm DANIEL IWASA, O.D.'s current license status, disciplinary history, and board certifications with the Idaho Board of Medicine in Idaho before relying on this page for a clinical or care decision.
How we sourced this profile
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
Reporting: Individual
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 DANIEL IWASA, O.D.. Source: openpaymentsdata.cms.gov.
Total received
$273
Largest payer
Bausch & Lomb Americas Inc.
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
49% brand-name claims vs 51% generic, on 637 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.
Prescribing Breakdown
- 30-Day Fills
- 862
- Total Day Supply
- 21,655
- Brand vs Generic
- 49% brand / 51% generic
- Brand Drug Cost
- $53K
- Generic Drug Cost
- $7K
Patient Demographics
- Average Patient Age
- 76.6 years
- Avg HCC Risk Score
- 0.94
- Gender Split
- 66% female / 34% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Latanoprost | 129 |
| Prednisolone Acetate | 124 |
| Neomycin-Polymyxin-Dexameth Neomycin/Polymyxin B/Dexametha | 120 |
| Timolol Maleate | 104 |
| Lumigan Bimatoprost | 29 |
| Xiidra Lifitegrast | 21 |
| Alphagan P Brimonidine Tartrate | 13 |
| Tobramycin-Dexamethasone Tobramycin/Dexamethasone | 13 |
| Rocklatan Netarsudil Mesylat/Latanoprost | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Optometrist Overview
How DANIEL IWASA, O.D. fits within the Optometrist landscape nationally.
DANIEL IWASA, O.D.'s 637 claims are above the specialty average of 257.
Nearby Optometrist Providers in Idaho
Other clinicians with the same primary specialty enrolled in Idaho, drawn from the same CMS NPPES roster as IWASA.
Compare Optometrist nationally: see state-by-state distribution →
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Frequently Asked Questions
What is DANIEL IWASA, O.D.'s specialty? ▼
How much does DANIEL IWASA, O.D. prescribe under Medicare Part D? ▼
What is DANIEL IWASA, O.D.'s Medicare quality score? ▼
Where is DANIEL IWASA, O.D. located? ▼
What is DANIEL IWASA, O.D.'s NPI number? ▼
Does DANIEL IWASA, O.D. prescribe more brand-name or generic drugs? ▼
How many Optometrist providers are there in the US? ▼
What drugs does DANIEL IWASA, O.D. prescribe most often? ▼
Does DANIEL IWASA, O.D. accept Medicare? ▼
How can I verify DANIEL IWASA, O.D.'s credentials? ▼
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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
- 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