2026 NPPES data Internal Medicine Physician NPI 1194097931 M.D.
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DENNIS BARNETT, M.D.

Internal Medicine Physician in SALEM, Oregon. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
3K
Medicare Part D claims · 282 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$41.9
2 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: DENNIS BARNETT, M.D. is a Internal Medicine Physician ([object Object]) practicing in SALEM, Oregon with a Medicare Part D prescribing footprint of 3K claims across 282 beneficiaries — 13% brand-name prescribing . Industry payments of $41.9 across 2 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: DENNIS BARNETT, M.D. filed 3,450 Medicare Part D claims in 2023 across SALEM, Oregon. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

DENNIS BARNETT, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

DENNIS BARNETT, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 02/08/2012

NPI 1194097931

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

3,450 27% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Oregon

How Internal Medicine Physician compares to other specialties among Oregon providers

Oregon providers

Internal Medicine Physician share within Oregon

1. Internal Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Internal Medicine Physician share within Oregon

Specialty board-certification context

Estimated specialty board-certified rate — Internal Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Internal Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Internal Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Internal Medicine Physician) — ABMS / AOA estimate

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).

DENNIS BARNETT, M.D. is a Internal Medicine Physician provider practicing in SALEM, Oregon, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1194097931. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

DENNIS BARNETT, M.D. appears in the CMS NPPES registry as a Internal Medicine Physician provider holding M.D. credentials at 6250 COMMERCIAL ST SE STE 100, SALEM, OR, 97306, with a listed phone of (503) 436-6994. NPI 1194097931 was issued on 02/08/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BARNETT most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 3,450 prescription claims written by this provider, covering 282 Medicare beneficiaries and totaling roughly $433K in drug spend, split 13% brand-name and 87% generic by claim count, with an opioid prescribing rate of 4.8%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

6250 COMMERCIAL ST SE STE 100
SALEM, OR 97306

Provider Details

NPI 1194097931
Specialty Internal Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 02/08/2012

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 DENNIS BARNETT, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$42

Largest payer

Boehringer Ingelheim Pharmaceuticals, 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 · Typical

DENNIS BARNETT, M.D. — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 3,450 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.

3,450
Total Claims
$433K
Total Drug Cost
282
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
6,185
Total Day Supply
179,939
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$352K
Generic Drug Cost
$80K
Opioid Claims
166 (4.8% rate)
Antibiotic Claims
50

Patient Demographics

Average Patient Age
70.9 years
Avg HCC Risk Score
1.38
Gender Split
55% female / 45% male
Age Distribution
<65: 55, 65-74: 113, 75-84: 85, 85+: 29

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Atorvastatin Calcium
159
Amlodipine Besylate
100
Lisinopril
98
Gabapentin
93
Omeprazole
91
Levothyroxine Sodium
90
Rosuvastatin Calcium
87
Pantoprazole Sodium
76
Metformin Hcl
74
Metoprolol Succinate
66

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Internal Medicine Physician Overview

How DENNIS BARNETT, M.D. fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

DENNIS BARNETT, M.D.'s 3,450 claims are above the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Oregon

Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as BARNETT.

Compare Internal Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is DENNIS BARNETT, M.D.'s specialty?
DENNIS BARNETT, M.D. specializes in Internal Medicine Physician and practices in SALEM, Oregon. Credentials: M.D..
How much does DENNIS BARNETT, M.D. prescribe under Medicare Part D?
In 2023, DENNIS BARNETT, M.D. wrote 3,450 Medicare Part D claims totaling $433K in drug costs for 282 beneficiaries.
Where is DENNIS BARNETT, M.D. located?
DENNIS BARNETT, M.D. is located at 6250 COMMERCIAL ST SE STE 100, SALEM, OR, 97306. Phone: (503) 436-6994.
What is DENNIS BARNETT, M.D.'s NPI number?
DENNIS BARNETT, M.D.'s National Provider Identifier (NPI) is 1194097931, issued on 02/08/2012.
Does DENNIS BARNETT, M.D. prescribe more brand-name or generic drugs?
DENNIS BARNETT, M.D.'s prescribing is 13% brand-name and 87% generic drugs by claim count, with $352K in brand drug costs.
Does DENNIS BARNETT, M.D. prescribe opioids?
Yes, DENNIS BARNETT, M.D. had 166 opioid claims in 2023 with an opioid prescribing rate of 4.8%.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does DENNIS BARNETT, M.D. prescribe most often?
Based on 2023 Medicare Part D data, DENNIS BARNETT, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DENNIS BARNETT, M.D. accept Medicare?
DENNIS BARNETT, M.D. appears in CMS Medicare data with 3,450 Part D claims and 282 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DENNIS BARNETT, M.D.'s credentials?
DENNIS BARNETT, M.D.'s NPI is 1194097931 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

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