NPI registry status
Active
2026 NPPES data Optometrist NPI 1811941743 O.D.
Verify on CMS → Cherilyn Lai, O.D.
Optometrist in Honolulu, Hawaii.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 61,426 in Optometrist, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
338
Medicare Part D claims · 94 beneficiaries · Optometrist avg: 279
Generic prescribing
28%
generic claims · 72% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.4K
17 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Cherilyn Lai, O.D. filed 338 Medicare Part D claims in 2024 as an Optometrist in Honolulu, Hawaii, prescribing 28% generic.
- 338
- Part D claims, 2024
- 28%
- generic prescribing
- $1.4K
- industry payments (Sunshine Act)
- ≥56th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Cherilyn Lai, O.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1811941743), first enumerated 05/22/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 338 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$1.4K in reported industry payments (17 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1811941743 · Optometrist
NPI-10 · ENUM-LEGACY · TAX-MEGA · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1811941743
- ENUM-LEGACY 2006
- TAX-MEGA 61K Optometrist
- RX-LIGHT 338
- BOOK-THIN 344 in Hawaii
- PHOTO-ENUM Geoffrey Chiara, O.D. · 2006
Cherilyn Lai, O.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
338 ≥ 56th percentile 56% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about Cherilyn Lai, O.D.?
Quality data not reportedPrimary specialty
Optometrist
Medicare Part D claims
338 21% vs specialty avg
Specialty distribution in Hawaii
How Optometrist compares to other specialties among Hawaii providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Optometrist. Verify directly:
How MIPS and board certification work
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).
Practice Address
Provider Details
| NPI | 1811941743 |
|---|---|
| Specialty | Optometrist |
| Credentials | O.D. |
| Gender | Female |
| NPI Issued | 05/22/2006 |
Hospital and facility affiliations
Facilities where Cherilyn Lai, O.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Lui Lai And Associates Inc
Honolulu, HI
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Cherilyn Lai, O.D.. Source: openpaymentsdata.cms.gov.
Total received
$1.4K
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 · Brand-heavy
Cherilyn Lai, O.D. - brand share 72.0%
Optometrist average
72% brand-name claims vs 28% generic, on 338 2024 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 2024.
338
Total Claims
$96K
Total Drug Cost
94
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 808.4
- Total Day Supply
- 23,926
- Brand vs Generic
- 72% brand / 28% generic
- Brand Drug Cost
- $89K
- Generic Drug Cost
- $7K
Patient Demographics
- Average Patient Age
- 77.9 years
- Avg HCC Risk Score
- 0.97
- Gender Split
- 64% female / 36% male
- Age Distribution
- <65: 0, 65-74: 33, 75-84: 42, 85+: 19
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Cherilyn Lai, O.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Latanoprost
Latanoprost
175 claims
- Restasis 25
Restasis
25 claims
- Vyzulta 25
Vyzulta
25 claims
- Dorzolamide-Timolol 18
Dorzolamide-Timolol
18 claims
- Dorzolamide Hcl 15
Dorzolamide Hcl
15 claims
- Timolol Maleate 13
Timolol Maleate
13 claims
| Drug | Claims |
|---|---|
| Latanoprost | 175 |
| Restasis Cyclosporine | 25 |
| Vyzulta Latanoprostene Bunod | 25 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 18 |
| Dorzolamide Hcl | 15 |
| Timolol Maleate | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Optometrist Overview
How Cherilyn Lai, O.D. fits within the Optometrist landscape nationally.
61,426
Optometrist Providers in US
56
States with Optometrist
279
Avg Claims per Provider
Cherilyn Lai, O.D.'s 338 claims are above the specialty average of 279.
Nationwide Optometrist peers with similar MIPS or enrollment year
Two federal-record peer sets for Lai, both outside Hawaii so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Optometrist Providers in Hawaii
Other clinicians with the same primary specialty enrolled in Hawaii, drawn from the same CMS NPPES roster as Lai.
One of 344 Optometrist providers enrolled in Hawaii, 5 are shown here.
Dr. Yelissa Abbasi
O.D.
Kapolei, HI
Dr. Derrick Abe
O.D.
Honolulu, HI
Kellie Abe
Kailua Kona, HI
Dr. Renee Allison
O.D.
Honolulu, HI
Dr. Calvin Alonzo
O.D.
Honolulu, HI
Compare Optometrist nationally: see state-by-state distribution →
Frequently Asked Questions
What is Cherilyn Lai, O.D.'s specialty? ▼
Cherilyn Lai, O.D. specializes in Optometrist and practices in Honolulu, Hawaii. Credentials: O.D..
How much does Cherilyn Lai, O.D. prescribe under Medicare Part D? ▼
In 2024, Cherilyn Lai, O.D. wrote 338 Medicare Part D claims totaling $96K in drug costs for 94 beneficiaries.
Where is Cherilyn Lai, O.D. located? ▼
Cherilyn Lai, O.D. is located at 1580 MAKALOA ST, Honolulu, HI, 96814. Phone: (808) 947-0111.
What is Cherilyn Lai, O.D.'s NPI number? ▼
Cherilyn Lai, O.D.'s National Provider Identifier (NPI) is 1811941743, issued on 05/22/2006.
Does Cherilyn Lai, O.D. prescribe more brand-name or generic drugs? ▼
Cherilyn Lai, O.D.'s prescribing is 72% brand-name and 28% generic drugs by claim count, with $89K in brand drug costs.
How many Optometrist providers are there in the US? ▼
There are 61,426 Optometrist providers across 56 states in the US. The average Optometrist provider writes 279 Medicare Part D claims per year.
What drugs does Cherilyn Lai, O.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Cherilyn Lai, O.D.'s most frequently prescribed drugs include Latanoprost, Restasis, Vyzulta. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Cherilyn Lai, O.D. accept Medicare? ▼
Cherilyn Lai, O.D. appears in CMS Medicare data with 338 Part D claims and 94 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Cherilyn Lai, O.D.'s credentials? ▼
Cherilyn Lai, O.D.'s NPI is 1811941743 with credentials O.D.. 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
View source datasets and methodology notes
- 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 (2024). 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 August 2026 (NPPES) / 2024 (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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.