NPI registry status
Active
2026 NPPES data Optometrist NPI 1649377516 O.D.
Verify on CMS → Arthur Lum, O.D.
Optometrist in Kent, Washington.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 60,484 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
305
Medicare Part D claims · 75 beneficiaries · Optometrist avg: 257
Generic prescribing
68%
generic claims · 32% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$2.3K
10 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Arthur Lum, O.D. filed 305 Medicare Part D claims in 2023 as an Optometrist in Kent, Washington, prescribing 68% generic.
- 305
- Part D claims, 2023
- 68%
- generic prescribing
- $2.3K
- 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.
Arthur Lum, O.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
305 Top 43% higher than 57% of 1,370,886 prescribers
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 Arthur Lum, O.D.?
Quality data not reportedPrimary specialty
Optometrist
Medicare Part D claims
305 19% vs specialty avg
Specialty distribution in Washington
How Optometrist compares to other specialties among Washington 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).
Arthur Lum, O.D. appears in the CMS NPPES registry as an Optometrist provider holding O.D. credentials at 11120 SE KENT KANGLEY RD, Kent, WA, 98030, with a listed phone of (253) 859-0942. NPI 1649377516 was issued on 09/20/2006.
Medicare Part D records for calendar year 2023 show 305 prescription claims written by this provider, covering 75 Medicare beneficiaries and totaling roughly $18K in drug spend, split 32% brand-name and 68% generic by claim count.
Optometrist is a high-volume specialty nationwide, with 60,484 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 | 1649377516 |
|---|---|
| Specialty | Optometrist |
| Credentials | O.D. |
| Gender | Male |
| NPI Issued | 09/20/2006 |
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 Arthur Lum, O.D.. Source: openpaymentsdata.cms.gov.
Total received
$2.3K
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.
License & disciplinary context - Washington WMC 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~34K Washington medical licensees in 2023 - they are NOT specific to Arthur Lum, O.D.. To verify Arthur Lum, O.D.'s current license status, search the WMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
88
Total board actions, Washington 2023
Across 85 cases
2.59
Actions per 1,000 licensees
Washington statewide rate
probation
Most common action type
31 cases
WMC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Washington disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Above average
Arthur Lum, O.D. - brand share 32.0%
Optometrist average
32% brand-name claims vs 68% generic, on 305 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.
305
Total Claims
$18K
Total Drug Cost
75
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 474
- Total Day Supply
- 12,658
- Brand vs Generic
- 32% brand / 68% generic
- Brand Drug Cost
- $12K
- Generic Drug Cost
- $6K
Patient Demographics
- Average Patient Age
- 73.4 years
- Avg HCC Risk Score
- 1.03
- Gender Split
- 65% female / 35% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Arthur Lum, O.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Latanoprost
Latanoprost
169 claims
- Brimonidine Tartrate 36
Brimonidine Tartrate
36 claims
- Neomycin-Polymyxin… 28
Neomycin-Polymyxin-Dexameth
28 claims
- Prednisolone Acetate 16
Prednisolone Acetate
16 claims
- Timolol Maleate 16
Timolol Maleate
16 claims
- Dorzolamide-Timolol 12
Dorzolamide-Timolol
12 claims
| Drug | Claims |
|---|---|
| Latanoprost | 169 |
| Brimonidine Tartrate | 36 |
| Neomycin-Polymyxin-Dexameth Neomycin/Polymyxin B/Dexametha | 28 |
| Prednisolone Acetate | 16 |
| Timolol Maleate | 16 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Optometrist Overview
How Arthur Lum, O.D. fits within the Optometrist landscape nationally.
60,484
Optometrist Providers in US
56
States with Optometrist
257
Avg Claims per Provider
Arthur Lum, O.D.'s 305 claims are above the specialty average of 257.
Nearby Optometrist Providers in Washington
Other clinicians with the same primary specialty enrolled in Washington, drawn from the same CMS NPPES roster as Lum.
Dr. Jenni Aaseby
O.D.
Shelton, WA
Dr. Meagan-Rhose Abanto
OD
Everett, WA
Dr. Jabeen Abdulla
O.D.
Tacoma, WA
Dr. James Abel
OD
Renton, WA
Dr. Christina Abercrombie
OD
Kent, WA
Compare Optometrist nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Washington medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Optometrist peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Arthur Lum, O.D.'s specialty? ▼
Arthur Lum, O.D. specializes in Optometrist and practices in Kent, Washington. Credentials: O.D..
How much does Arthur Lum, O.D. prescribe under Medicare Part D? ▼
In 2023, Arthur Lum, O.D. wrote 305 Medicare Part D claims totaling $18K in drug costs for 75 beneficiaries.
Where is Arthur Lum, O.D. located? ▼
Arthur Lum, O.D. is located at 11120 SE KENT KANGLEY RD, Kent, WA, 98030. Phone: (253) 859-0942.
What is Arthur Lum, O.D.'s NPI number? ▼
Arthur Lum, O.D.'s National Provider Identifier (NPI) is 1649377516, issued on 09/20/2006.
Does Arthur Lum, O.D. prescribe more brand-name or generic drugs? ▼
Arthur Lum, O.D.'s prescribing is 32% brand-name and 68% generic drugs by claim count, with $12K in brand drug costs.
How many Optometrist providers are there in the US? ▼
There are 60,484 Optometrist providers across 56 states in the US. The average Optometrist provider writes 257 Medicare Part D claims per year.
What drugs does Arthur Lum, O.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Arthur Lum, O.D.'s most frequently prescribed drugs include Latanoprost, Brimonidine Tartrate, Neomycin-Polymyxin-Dexameth. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Arthur Lum, O.D. accept Medicare? ▼
Arthur Lum, O.D. appears in CMS Medicare data with 305 Part D claims and 75 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Arthur Lum, O.D.'s credentials? ▼
Arthur Lum, O.D.'s NPI is 1649377516 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 (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
Compiled from official public sources by the PlainDoctor editorial team.
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 May 2026.