NPI registry status
Active
2026 NPPES data Ophthalmology Physician NPI 1386140101 MD
Verify on CMS → Brian Walker, MD
Ophthalmology Physician in Eugene, Oregon.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 22,388 in Ophthalmology Physician, 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
2K
Medicare Part D claims · 598 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
68%
generic claims · 32% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$325.85
14 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Brian Walker, MD filed 2,137 Medicare Part D claims in 2024 as an Ophthalmology Physician in Eugene, Oregon, prescribing 68% generic.
- 2K
- Part D claims, 2024
- 68%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥85th
- 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 Brian Walker, MD
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 1386140101), first enumerated 04/02/2018.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 2,137 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- 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
$325.85 in reported industry payments (14 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 1386140101 · Ophthalmology Physician
NPI-10 · ENUM-RECENT · TAX-MID · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1386140101
- ENUM-RECENT 2018
- TAX-MID 22K Ophthalmology Physician
- RX-MID 2,137
- BOOK-THIN 377 in Oregon
- PHOTO-ENUM Tayaba Azher, MD · 2018
Brian Walker, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
2,137 ≥ 85th percentile 85% 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
✓
Board certification likely (heuristic, not verified)
Brian Walker, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Brian Walker, MD?
Quality data not reportedPrimary specialty
Ophthalmology Physician
Medicare Part D claims
2,137 43% vs specialty avg
Specialty distribution in Oregon
How Ophthalmology Physician compares to other specialties among Oregon 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 Ophthalmology Physician. 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 | 1386140101 |
|---|---|
| Specialty | Ophthalmology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 04/02/2018 |
Hospital and facility affiliations
Facilities where Brian Walker, MD 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.
The Eye Center LLC
Newport, OR
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 Brian Walker, MD. Source: openpaymentsdata.cms.gov.
Total received
$326
Largest payer
RxSight 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
Brian Walker, MD - brand share 32.0%
Ophthalmology Physician average
32% brand-name claims vs 68% generic, on 2,137 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.
2,137
Total Claims
$146K
Total Drug Cost
598
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 3,656.233
- Total Day Supply
- 104,309
- Brand vs Generic
- 32% brand / 68% generic
- Brand Drug Cost
- $108K
- Generic Drug Cost
- $38K
- Antibiotic Claims
- 27
Patient Demographics
- Average Patient Age
- 76.2 years
- Avg HCC Risk Score
- 1.18
- Gender Split
- 62% female / 38% male
- Age Distribution
- <65: 25, 65-74: 223, 75-84: 269, 85+: 81
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Brian Walker, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Latanoprost
Latanoprost
527 claims
- Prednisolone Acetate
Prednisolone Acetate
310 claims
- Ofloxacin
Ofloxacin
233 claims
- Ketorolac Trometha…
Ketorolac Tromethamine
227 claims
- Timolol Maleate 138
Timolol Maleate
138 claims
- Dorzolamide-Timolol 126
Dorzolamide-Timolol
126 claims
- Brimonidine Tartrate 99
Brimonidine Tartrate
99 claims
- Neomycin-Polymyxin… 68
Neomycin-Polymyxin-Dexameth
68 claims
| Drug | Claims |
|---|---|
| Latanoprost | 527 |
| Prednisolone Acetate | 310 |
| Ofloxacin | 233 |
| Ketorolac Tromethamine | 227 |
| Timolol Maleate | 138 |
| Dorzolamide-Timolol Dorzolamide Hcl/Timolol Maleat | 126 |
| Brimonidine Tartrate | 99 |
| Neomycin-Polymyxin-Dexameth Neomycin/Polymyxin B/Dexametha | 68 |
| Dorzolamide Hcl | 63 |
| Travoprost | 37 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Ophthalmology Physician Overview
How Brian Walker, MD fits within the Ophthalmology Physician landscape nationally.
22,388
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,490
Avg Claims per Provider
Brian Walker, MD's 2,137 claims are above the specialty average of 1,490.
Nationwide Ophthalmology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Walker, both outside Oregon so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2018)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Ophthalmology Physician Providers in Oregon
Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as Walker.
One of 377 Ophthalmology Physician providers enrolled in Oregon, 5 are shown here.
Dr. Aazy Aaby
MD
Portland, OR
Dr. Blake Acohido
M.D.
Portland, OR
Dr. Bart Adams
MD
Pendleton, OR
Dr. Christopher Aderman
M.D.
Troutdale, OR
Dr. Adam Ahmadi
MD
Hermiston, OR
Compare Ophthalmology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Brian Walker, MD's specialty? ▼
Brian Walker, MD specializes in Ophthalmology Physician and practices in Eugene, Oregon. Credentials: MD.
How much does Brian Walker, MD prescribe under Medicare Part D? ▼
In 2024, Brian Walker, MD wrote 2,137 Medicare Part D claims totaling $146K in drug costs for 598 beneficiaries.
Where is Brian Walker, MD located? ▼
Brian Walker, MD is located at 1550 OAK ST STE 3, Eugene, OR, 97401. Phone: (541) 683-2020.
What is Brian Walker, MD's NPI number? ▼
Brian Walker, MD's National Provider Identifier (NPI) is 1386140101, issued on 04/02/2018.
Does Brian Walker, MD prescribe more brand-name or generic drugs? ▼
Brian Walker, MD's prescribing is 32% brand-name and 68% generic drugs by claim count, with $108K in brand drug costs.
How many Ophthalmology Physician providers are there in the US? ▼
There are 22,388 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,490 Medicare Part D claims per year.
What drugs does Brian Walker, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Brian Walker, MD's most frequently prescribed drugs include Latanoprost, Prednisolone Acetate, Ofloxacin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Brian Walker, MD accept Medicare? ▼
Brian Walker, MD appears in CMS Medicare data with 2,137 Part D claims and 598 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Brian Walker, MD's credentials? ▼
Brian Walker, MD's NPI is 1386140101 with credentials MD. 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.