NPI registry status
Active
2026 NPPES data Critical Care Medicine (Internal Medicine) Physician NPI 1093722217 M.D.
Verify on CMS → Matthew Walter, M.D.
Critical Care Medicine (Internal Medicine) 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 6,646 in Critical Care Medicine (Internal Medicine) 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
1K
Medicare Part D claims · 172 beneficiaries · Critical Care Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
0%
generic claims · 61% brand-name · higher generic rates reduce patient out-of-pocket costs
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
Matthew Walter, M.D. filed 1,169 Medicare Part D claims in 2023 as a Critical Care Medicine (Internal Medicine) Physician in Eugene, Oregon, prescribing 0% generic.
- 1K
- Part D claims, 2023
- 0%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Matthew Walter, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,169 Top 23% higher than 77% 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
✓
Board certification likely (heuristic, not verified)
Matthew Walter, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations - 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 Matthew Walter, M.D.?
Quality data not reportedPrimary specialty
Critical Care Medicine (Internal Medicine) Physician
Medicare Part D claims
1,169 9% vs specialty avg
Specialty distribution in Oregon
How Critical Care Medicine (Internal Medicine) 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 Critical Care Medicine (Internal Medicine) 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).
Matthew Walter, M.D. appears in the CMS NPPES registry as a Critical Care Medicine (Internal Medicine) Physician provider holding M.D. credentials at 3125 CHAD DR STE 100, Eugene, OR, 97408, with a listed phone of (541) 687-1712. NPI 1093722217 was issued on 08/01/2006.
Medicare Part D records for calendar year 2023 show 1,169 prescription claims written by this provider, covering 172 Medicare beneficiaries and totaling roughly $533K in drug spend, split 61% brand-name and 0% generic by claim count.
Critical Care Medicine (Internal Medicine) Physician is a mid-sized specialty nationwide, with 6,646 enrolled providers across 53 states and an average of 1,069 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 | 1093722217 |
|---|---|
| Specialty | Critical Care Medicine (Internal Medicine) Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 08/01/2006 |
Hospital and facility affiliations
Facilities where Matthew Walter, M.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.
Peacehealth Medical Group
Eugene, OR
Sound Physicians Intensivists OF Washington PLLC
Springfield, 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).
Brand vs generic prescribing mix · Brand-heavy
Matthew Walter, M.D. - brand share 61.0%
Critical Care Medicine (Internal Medicine) Physician average
61% brand-name claims vs 0% generic, on 1,169 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.
1,169
Total Claims
$533K
Total Drug Cost
172
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,498
- Total Day Supply
- 41,081
- Brand vs Generic
- 61% brand / 0% generic
- Brand Drug Cost
- $473K
- Antibiotic Claims
- 126
Patient Demographics
- Average Patient Age
- 74.1 years
- Avg HCC Risk Score
- 1.94
- Gender Split
- 53% female / 47% male
- Age Distribution
- <65: 19, 65-74: 65, 75-84: 71, 85+: 17
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Matthew Walter, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Trelegy Ellipta
Trelegy Ellipta
233 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
153 claims
- Azithromycin 91
Azithromycin
91 claims
- Anoro Ellipta 76
Anoro Ellipta
76 claims
- Fluticasone-Salmet… 54
Fluticasone-Salmeterol
54 claims
- Montelukast Sodium 50
Montelukast Sodium
50 claims
- Prednisone 44
Prednisone
44 claims
- Combivent Respimat 38
Combivent Respimat
38 claims
| Drug | Claims |
|---|---|
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 233 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 153 |
| Azithromycin | 91 |
| Anoro Ellipta Umeclidinium Brm/Vilanterol Tr | 76 |
| Fluticasone-Salmeterol Fluticasone Propion/Salmeterol | 54 |
| Montelukast Sodium | 50 |
| Prednisone | 44 |
| Combivent Respimat Ipratropium/Albuterol Sulfate | 38 |
| Stiolto Respimat Tiotropium Br/Olodaterol Hcl | 33 |
| Breo Ellipta Fluticasone/Vilanterol | 32 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Critical Care Medicine (Internal Medicine) Physician in OR →
All providers in Oregon →
Compare specialties →
Critical Care Medicine (Internal Medicine) Physician Overview
How Matthew Walter, M.D. fits within the Critical Care Medicine (Internal Medicine) Physician landscape nationally.
6,646
Critical Care Medicine (Internal Medicine) Physician Providers in US
53
States with Critical Care Medicine (Internal Medicine) Physician
1,069
Avg Claims per Provider
Matthew Walter, M.D.'s 1,169 claims are above the specialty average of 1,069.
Nearby Critical Care Medicine (Internal Medicine) Physician Providers in Oregon
Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as Walter.
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 Oregon medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Critical Care Medicine (Internal Medicine) Physician 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 Matthew Walter, M.D.'s specialty? ▼
Matthew Walter, M.D. specializes in Critical Care Medicine (Internal Medicine) Physician and practices in Eugene, Oregon. Credentials: M.D..
How much does Matthew Walter, M.D. prescribe under Medicare Part D? ▼
In 2023, Matthew Walter, M.D. wrote 1,169 Medicare Part D claims totaling $533K in drug costs for 172 beneficiaries.
Where is Matthew Walter, M.D. located? ▼
Matthew Walter, M.D. is located at 3125 CHAD DR STE 100, Eugene, OR, 97408. Phone: (541) 687-1712.
What is Matthew Walter, M.D.'s NPI number? ▼
Matthew Walter, M.D.'s National Provider Identifier (NPI) is 1093722217, issued on 08/01/2006.
Does Matthew Walter, M.D. prescribe more brand-name or generic drugs? ▼
Matthew Walter, M.D.'s prescribing is 61% brand-name and 0% generic drugs by claim count, with $473K in brand drug costs.
How many Critical Care Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 6,646 Critical Care Medicine (Internal Medicine) Physician providers across 53 states in the US. The average Critical Care Medicine (Internal Medicine) Physician provider writes 1,069 Medicare Part D claims per year.
What drugs does Matthew Walter, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Matthew Walter, M.D.'s most frequently prescribed drugs include Trelegy Ellipta, Albuterol Sulfate Hfa, Azithromycin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Matthew Walter, M.D. accept Medicare? ▼
Matthew Walter, M.D. appears in CMS Medicare data with 1,169 Part D claims and 172 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Matthew Walter, M.D.'s credentials? ▼
Matthew Walter, M.D.'s NPI is 1093722217 with credentials M.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.