2026 NPPES data Hospitalist Physician NPI 1134127343 MD
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DENNIS DUCK, MD

Hospitalist Physician in RUTLEDGE, Tennessee. 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
11K
Medicare Part D claims · 638 beneficiaries · Hospitalist Physician avg: 888
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
86.2605/100
▲ 3 pts above national avg 83.1 · [object Object]
Industry payments
$606.74
28 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: DENNIS DUCK, MD is a Hospitalist Physician ([object Object]) practicing in RUTLEDGE, Tennessee with a Medicare Part D prescribing footprint of 11K claims across 638 beneficiaries — 14% brand-name prescribing . Their CMS MIPS Final Score of 86.2605/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $606.74 across 28 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: DENNIS DUCK, MD reported a CMS MIPS final score of 86.2605 out of 100, above the 83.1 national average, and filed 11,045 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

DENNIS DUCK, MD 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).

DENNIS DUCK, MD at a glance

High performer (top quartile)

NPI registry status

Active

Issued 07/12/2005

NPI 1134127343

Primary specialty

Hospitalist Physician

Mid-sized

16,825 US NPIs in this specialty

Medicare Part D claims

11,045 1144% vs specialty avg

2023 prescription claims

Specialty avg: 888

MIPS final score

86.2605/100 3.160499999999999% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Tennessee

How Hospitalist Physician compares to other specialties among Tennessee providers

Tennessee providers

Hospitalist Physician share within Tennessee

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

Medicare quality performance — MIPS

DENNIS DUCK, MD's 2023 MIPS final score plotted against the Hospitalist Physician national average

High performer (top quartile)
MIPS Final Score
86.2605/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Hospitalist Physician) — 86.2605/100 vs national avg 83.1

0%100%National avg83%86.3%
MIPS final score (Hospitalist Physician) — 86.2605/100 vs national avg 83.1

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 DUCK, MD is a Hospitalist Physician provider practicing in RUTLEDGE, Tennessee, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1134127343. 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 DUCK, MD appears in the CMS NPPES registry as a Hospitalist Physician provider holding MD credentials at 8731 RUTLEDGE PIKE, RUTLEDGE, TN, 37861, with a listed phone of (865) 828-5595. NPI 1134127343 was issued on 07/12/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DUCK 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 11,045 prescription claims written by this provider, covering 638 Medicare beneficiaries and totaling roughly $1.2 million in drug spend, split 14% brand-name and 86% generic by claim count, with an opioid prescribing rate of 3.2%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 86.2605/100 for the 2023 performance year (Quality 75.0192), compared with the national average of 83.1.

Hospitalist Physician is a mid-sized specialty nationwide, with 16,825 enrolled providers across 54 states and an average of 888 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

8731 RUTLEDGE PIKE
RUTLEDGE, TN 37861

Provider Details

NPI 1134127343
Specialty Hospitalist Physician
Credentials MD
Gender Male
NPI Issued 07/12/2005

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

86.2605
Final Score
Avg: 83.1
75.0192
Quality
100
Promoting Interoperability

Reporting: Group practice

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 DUCK, MD. Source: openpaymentsdata.cms.gov.

Total received

$607

Largest payer

Novo Nordisk 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 DUCK, MD — brand share 14.0%
Specialty average (est.)

14% brand-name claims vs 86% generic, on 11,045 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.

11,045
Total Claims
$1.2M
Total Drug Cost
638
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
18,190
Total Day Supply
513,172
Brand vs Generic
14% brand / 86% generic
Brand Drug Cost
$986K
Generic Drug Cost
$171K
Opioid Claims
355 (3.2% rate)
Antibiotic Claims
408

Patient Demographics

Average Patient Age
71.6 years
Avg HCC Risk Score
1.27
Gender Split
55% female / 45% male
Age Distribution
<65: 104, 65-74: 278, 75-84: 205, 85+: 51

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Pantoprazole Sodium
374
Levothyroxine Sodium
349
Atorvastatin Calcium
284
Lisinopril
275
Amlodipine Besylate
267
Gabapentin
257
Meloxicam
248
Omeprazole
213
Alprazolam
190
Albuterol Sulfate Hfa
Albuterol Sulfate
186

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

Hospitalist Physician Overview

How DENNIS DUCK, MD fits within the Hospitalist Physician landscape nationally.

16,825
Hospitalist Physician Providers in US
54
States with Hospitalist Physician
888
Avg Claims per Provider

DENNIS DUCK, MD's 11,045 claims are above the specialty average of 888.

Nearby Hospitalist Physician Providers in Tennessee

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

Compare Hospitalist Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is DENNIS DUCK, MD's specialty?
DENNIS DUCK, MD specializes in Hospitalist Physician and practices in RUTLEDGE, Tennessee. Credentials: MD.
How much does DENNIS DUCK, MD prescribe under Medicare Part D?
In 2023, DENNIS DUCK, MD wrote 11,045 Medicare Part D claims totaling $1.2M in drug costs for 638 beneficiaries.
What is DENNIS DUCK, MD's Medicare quality score?
DENNIS DUCK, MD has a CMS MIPS Final Score of 86.2605/100 (Quality: 75.0192). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is DENNIS DUCK, MD located?
DENNIS DUCK, MD is located at 8731 RUTLEDGE PIKE, RUTLEDGE, TN, 37861. Phone: (865) 828-5595.
What is DENNIS DUCK, MD's NPI number?
DENNIS DUCK, MD's National Provider Identifier (NPI) is 1134127343, issued on 07/12/2005.
Does DENNIS DUCK, MD prescribe more brand-name or generic drugs?
DENNIS DUCK, MD's prescribing is 14% brand-name and 86% generic drugs by claim count, with $986K in brand drug costs.
Does DENNIS DUCK, MD prescribe opioids?
Yes, DENNIS DUCK, MD had 355 opioid claims in 2023 with an opioid prescribing rate of 3.2%.
How many Hospitalist Physician providers are there in the US?
There are 16,825 Hospitalist Physician providers across 54 states in the US. The average Hospitalist Physician provider writes 888 Medicare Part D claims per year.
What drugs does DENNIS DUCK, MD prescribe most often?
Based on 2023 Medicare Part D data, DENNIS DUCK, MD's most frequently prescribed drugs include Pantoprazole Sodium, Levothyroxine Sodium, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DENNIS DUCK, MD accept Medicare?
DENNIS DUCK, MD appears in CMS Medicare data with 11,045 Part D claims and 638 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DENNIS DUCK, MD's credentials?
DENNIS DUCK, MD's NPI is 1134127343 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

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