NPI registry status
Active
2026 NPPES data Addiction Medicine (Internal Medicine) Physician NPI 1851335913 M.D.
Verify on CMS → Bruce Matthews, M.D.
Addiction Medicine (Internal Medicine) Physician in Coburg, 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 553 in Addiction 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 · 91 beneficiaries · Addiction Medicine (Internal Medicine) Physician avg: 1K
MIPS score
98.7/100
▲ 15 pts above national avg 83.5 · Exceptional
What the federal data shows
Bruce Matthews, M.D. reported a CMS MIPS final score of 98.7/100 - above the 83.5 national average - and filed 1,548 Medicare Part D claims in 2023.
- 98.7/100
- MIPS score · +15 vs avg
- 2K
- Part D claims, 2023
- Likely
- board-certified (heuristic)
- ≥89th
- pct among measured MIPS (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.
Bruce Matthews, M.D.'s MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
99 ≥ 89th percentile 89% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured providers. 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 whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Bruce Matthews, M.D. sits
This provider among addiction medicine (internal medicine) physician peers
Across the 72 addiction medicine (internal medicine) physician providers who report both Medicare Part D prescribing and a MIPS quality score, Bruce Matthews, M.D. writes more Part D claims than 76% of them and scores higher on MIPS quality than 93% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one addiction medicine (internal medicine) physician peer from a representative sample of 60; the gold marker is Bruce Matthews, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Bruce Matthews, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Bruce Matthews, M.D.?
High performer (top quartile)Primary specialty
Addiction Medicine (Internal Medicine) Physician
Medicare Part D claims
1,548 10% vs specialty avg
MIPS final score
98.7/100 15.2 pts vs avg
Specialty distribution in Oregon
How Addiction Medicine (Internal Medicine) Physician compares to other specialties among Oregon providers
Medicare quality performance, MIPS
Bruce Matthews, M.D.'s 2023 MIPS final score plotted against the Addiction Medicine (Internal Medicine) Physician national average
- MIPS Final Score
- 98.7/100
- vs 83.5 national avg · 2023 performance year
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).
Bruce Matthews, M.D. appears in the CMS NPPES registry as an Addiction Medicine (Internal Medicine) Physician provider holding M.D. credentials at 1 SERENITY LN, Coburg, OR, 97408, with a listed phone of (541) 687-1110. NPI 1851335913 was issued on 06/16/2006.
Medicare Part D records for calendar year 2023 show 1,548 prescription claims written by this provider, covering 91 Medicare beneficiaries and totaling roughly $158K in drug spend, with an opioid prescribing rate of 38.1%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 98.7/100 for the 2023 performance year (Quality 87.2, Cost 91.9), compared with the 83.5 average among clinicians with a measured score.
Addiction Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 553 enrolled providers across 46 states and an average of 1,403 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 | 1851335913 |
|---|---|
| Specialty | Addiction Medicine (Internal Medicine) Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 06/16/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
98.7181
Final Score
Measured-score avg: 83.5
87.1884
Quality
91.872
Cost
100
Promoting Interoperability
Reporting: Group practice
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
1,548
Total Claims
$158K
Total Drug Cost
91
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,622
- Total Day Supply
- 38,372
- Generic Drug Cost
- $99K
- Opioid Claims
- 590 (38.1% rate)
Patient Demographics
- Average Patient Age
- 67.4 years
- Avg HCC Risk Score
- 1.92
- Gender Split
- 57% female / 43% male
- Age Distribution
- <65: 33, 65-74: 36, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Bruce Matthews, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Buprenorphine Hcl
Buprenorphine Hcl
239 claims
- Oxycodone Hcl
Oxycodone Hcl
213 claims
- Buprenorphine-Nalo…
Buprenorphine-Naloxone
183 claims
- Morphine Sulfate Er 93
Morphine Sulfate Er
93 claims
- Hydrocodone-Acetam… 78
Hydrocodone-Acetaminophen
78 claims
- Lorazepam 78
Lorazepam
78 claims
- Clonazepam 64
Clonazepam
64 claims
- Mirtazapine 48
Mirtazapine
48 claims
| Drug | Claims |
|---|---|
| Buprenorphine Hcl | 239 |
| Oxycodone Hcl | 213 |
| Buprenorphine-Naloxone Buprenorphine Hcl/Naloxone Hcl | 183 |
| Morphine Sulfate Er Morphine Sulfate | 93 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 78 |
| Lorazepam | 78 |
| Clonazepam | 64 |
| Mirtazapine | 48 |
| Suboxone Buprenorphine Hcl/Naloxone Hcl | 39 |
| Tramadol Hcl | 39 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Addiction Medicine (Internal Medicine) Physician in OR →
All providers in Oregon →
Compare specialties →
Addiction Medicine (Internal Medicine) Physician Overview
How Bruce Matthews, M.D. fits within the Addiction Medicine (Internal Medicine) Physician landscape nationally.
553
Addiction Medicine (Internal Medicine) Physician Providers in US
46
States with Addiction Medicine (Internal Medicine) Physician
1,403
Avg Claims per Provider
Bruce Matthews, M.D.'s 1,548 claims are above the specialty average of 1,403.
Nearby Addiction 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 Matthews.
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 Addiction 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 Bruce Matthews, M.D.'s specialty? ▼
Bruce Matthews, M.D. specializes in Addiction Medicine (Internal Medicine) Physician and practices in Coburg, Oregon. Credentials: M.D..
How much does Bruce Matthews, M.D. prescribe under Medicare Part D? ▼
In 2023, Bruce Matthews, M.D. wrote 1,548 Medicare Part D claims totaling $158K in drug costs for 91 beneficiaries.
What is Bruce Matthews, M.D.'s Medicare quality score? ▼
Bruce Matthews, M.D. has a CMS MIPS Final Score of 98.7/100 (Quality: 87.2, Cost: 91.9). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Bruce Matthews, M.D. located? ▼
Bruce Matthews, M.D. is located at 1 SERENITY LN, Coburg, OR, 97408. Phone: (541) 687-1110.
What is Bruce Matthews, M.D.'s NPI number? ▼
Bruce Matthews, M.D.'s National Provider Identifier (NPI) is 1851335913, issued on 06/16/2006.
Does Bruce Matthews, M.D. prescribe opioids? ▼
Yes, Bruce Matthews, M.D. had 590 opioid claims in 2023 with an opioid prescribing rate of 38.1%.
How many Addiction Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 553 Addiction Medicine (Internal Medicine) Physician providers across 46 states in the US. The average Addiction Medicine (Internal Medicine) Physician provider writes 1,403 Medicare Part D claims per year.
What drugs does Bruce Matthews, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Bruce Matthews, M.D.'s most frequently prescribed drugs include Buprenorphine Hcl, Oxycodone Hcl, Buprenorphine-Naloxone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Bruce Matthews, M.D. accept Medicare? ▼
Bruce Matthews, M.D. appears in CMS Medicare data with 1,548 Part D claims and 91 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Bruce Matthews, M.D.'s credentials? ▼
Bruce Matthews, M.D.'s NPI is 1851335913 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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
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.