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 6,916 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
2K
Medicare Part D claims · 260 beneficiaries · Critical Care Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
38%
generic claims · 62% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Matthew Walter, M.D. filed 1,632 Medicare Part D claims in 2024 as a Critical Care Medicine (Internal Medicine) Physician in Eugene, Oregon, prescribing 38% generic.
- 2K
- Part D claims, 2024
- 38%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥81st
- 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 Matthew Walter, M.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 1093722217), first enumerated 08/01/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,632 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
2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- 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 1093722217 · Critical Care Medicine (Internal Medicine) Physician
NPI-10 · ENUM-LEGACY · TAX-MID · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1093722217
- ENUM-LEGACY 2006
- TAX-MID 7K Critical Care
- RX-MID 1,632
- BOOK-THIN 90 in Oregon
- PHOTO-ENUM David Van Pelt, M.D. · 2006
Matthew Walter, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
1,632 ≥ 81st percentile 81% 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)
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
1,632 48% 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).
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 62.0%
Critical Care Medicine (Internal Medicine) Physician average
62% brand-name claims vs 38% generic, on 1,632 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.
1,632
Total Claims
$1.1M
Total Drug Cost
260
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,287.067
- Total Day Supply
- 63,667
- Brand vs Generic
- 62% brand / 38% generic
- Brand Drug Cost
- $953K
- Generic Drug Cost
- $99K
- Antibiotic Claims
- 138
Patient Demographics
- Average Patient Age
- 73.6 years
- Avg HCC Risk Score
- 1.96
- Gender Split
- 59% female / 41% male
- Age Distribution
- <65: 28, 65-74: 105, 75-84: 105, 85+: 22
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Matthew Walter, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Trelegy Ellipta
Trelegy Ellipta
337 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
194 claims
- Anoro Ellipta 91
Anoro Ellipta
91 claims
- Prednisone 91
Prednisone
91 claims
- Breo Ellipta 88
Breo Ellipta
88 claims
- Azithromycin 77
Azithromycin
77 claims
- Montelukast Sodium 76
Montelukast Sodium
76 claims
- Fluticasone-Salmet… 59
Fluticasone-Salmeterol
59 claims
| Drug | Claims |
|---|---|
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 337 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 194 |
| Anoro Ellipta Umeclidinium Brm/Vilanterol Tr | 91 |
| Prednisone | 91 |
| Breo Ellipta Fluticasone/Vilanterol | 88 |
| Azithromycin | 77 |
| Montelukast Sodium | 76 |
| Fluticasone-Salmeterol Fluticasone Propion/Salmeterol | 59 |
| Stiolto Respimat Tiotropium Br/Olodaterol Hcl | 51 |
| Doxycycline Monohydrate | 31 |
* 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.
6,916
Critical Care Medicine (Internal Medicine) Physician Providers in US
53
States with Critical Care Medicine (Internal Medicine) Physician
1,103
Avg Claims per Provider
Matthew Walter, M.D.'s 1,632 claims are above the specialty average of 1,103.
Nationwide Critical Care Medicine (Internal Medicine) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Walter, both outside Oregon 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 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.
One of 90 Critical Care Medicine (Internal Medicine) Physician providers enrolled in Oregon, 5 are shown here.
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 2024, Matthew Walter, M.D. wrote 1,632 Medicare Part D claims totaling $1.1M in drug costs for 260 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 62% brand-name and 38% generic drugs by claim count, with $953K in brand drug costs.
How many Critical Care Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 6,916 Critical Care Medicine (Internal Medicine) Physician providers across 53 states in the US. The average Critical Care Medicine (Internal Medicine) Physician provider writes 1,103 Medicare Part D claims per year.
What drugs does Matthew Walter, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Matthew Walter, M.D.'s most frequently prescribed drugs include Trelegy Ellipta, Albuterol Sulfate Hfa, Anoro Ellipta. 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 1,632 Part D claims and 260 Medicare beneficiaries in 2024. 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 (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.