2026 NPPES data Physician Assistant NPI 1083253306
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CHARLES DENNEHEY

Physician Assistant in DAVENPORT, Iowa. 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
544
Medicare Part D claims · 308 beneficiaries · Physician Assistant avg: 790
MIPS score
28.5566/100
▼ 55 pts below national avg 83.1 · [object Object]
What the federal data reveals: CHARLES DENNEHEY is a Physician Assistant ([object Object]) practicing in DAVENPORT, Iowa with a Medicare Part D prescribing footprint of 544 claims across 308 beneficiaries . Their CMS MIPS Final Score of 28.5566/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: CHARLES DENNEHEY reported a CMS MIPS final score of 28.5566 out of 100, below the 83.1 national average, and filed 544 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

CHARLES DENNEHEY at a glance

Below national average

NPI registry status

Active

Issued 01/03/2020

NPI 1083253306

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Medicare Part D claims

544 31% vs specialty avg

2023 prescription claims

Specialty avg: 790

MIPS final score

28.5566/100 54.54339999999999% pts

Below average band

vs 83.1 national avg

Specialty distribution in Iowa

How Physician Assistant compares to other specialties among Iowa providers

Iowa providers

Physician Assistant share within Iowa

1. Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Physician Assistant share within Iowa

Medicare quality performance — MIPS

CHARLES DENNEHEY's 2023 MIPS final score plotted against the Physician Assistant national average

Below national average
MIPS Final Score
28.5566/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Physician Assistant) — 28.5566/100 vs national avg 83.1

0%100%National avg83%28.6%
MIPS final score (Physician Assistant) — 28.5566/100 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).

CHARLES DENNEHEY is a Physician Assistant provider practicing in DAVENPORT, Iowa, according to the CMS National Plan and Provider Enumeration System (NPPES). NPI: 1083253306. 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.

CHARLES DENNEHEY appears in the CMS NPPES registry as a Physician Assistant provider at 1227 E RUSHOLME ST, DAVENPORT, IA, 52803, with a listed phone of (563) 421-1000. NPI 1083253306 was issued on 01/03/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DENNEHEY 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 544 prescription claims written by this provider, covering 308 Medicare beneficiaries and totaling roughly $10K in drug spend, with an opioid prescribing rate of 3.3%. 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 28.5566/100 for the 2023 performance year (Quality 21.3884, Cost 55.9766), compared with the national average of 83.1.

Physician Assistant is a high-volume specialty nationwide, with 149,975 enrolled providers across 56 states and an average of 790 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

1227 E RUSHOLME ST
DAVENPORT, IA 52803

Provider Details

NPI 1083253306
Specialty Physician Assistant
Gender Male
NPI Issued 01/03/2020

CMS Quality Score (MIPS)

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

28.5566
Final Score
Avg: 83.1
21.3884
Quality
55.9766
Cost

Reporting: Group practice

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

544
Total Claims
$10K
Total Drug Cost
308
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
545
Total Day Supply
5,867
Generic Drug Cost
$6K
Opioid Claims
18 (3.3% rate)
Antibiotic Claims
264

Patient Demographics

Average Patient Age
69.3 years
Avg HCC Risk Score
1.78
Gender Split
58% female / 42% male
Age Distribution
<65: 80, 65-74: 117, 75-84: 82, 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
Cefdinir
106
Azithromycin
72
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
62
Prednisone
41
Albuterol Sulfate Hfa
Albuterol Sulfate
30
Ondansetron Odt
Ondansetron
27
Methocarbamol
25
Nabumetone
22
Dicyclomine Hcl
20
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
18

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

Physician Assistant Overview

How CHARLES DENNEHEY fits within the Physician Assistant landscape nationally.

149,975
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider

CHARLES DENNEHEY's 544 claims are below the specialty average of 790.

Nearby Physician Assistant Providers in Iowa

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

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

Frequently Asked Questions

What is CHARLES DENNEHEY's specialty?
CHARLES DENNEHEY specializes in Physician Assistant and practices in DAVENPORT, Iowa.
How much does CHARLES DENNEHEY prescribe under Medicare Part D?
In 2023, CHARLES DENNEHEY wrote 544 Medicare Part D claims totaling $10K in drug costs for 308 beneficiaries.
What is CHARLES DENNEHEY's Medicare quality score?
CHARLES DENNEHEY has a CMS MIPS Final Score of 28.5566/100 (Quality: 21.3884, Cost: 55.9766). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is CHARLES DENNEHEY located?
CHARLES DENNEHEY is located at 1227 E RUSHOLME ST, DAVENPORT, IA, 52803. Phone: (563) 421-1000.
What is CHARLES DENNEHEY's NPI number?
CHARLES DENNEHEY's National Provider Identifier (NPI) is 1083253306, issued on 01/03/2020.
Does CHARLES DENNEHEY prescribe opioids?
Yes, CHARLES DENNEHEY had 18 opioid claims in 2023 with an opioid prescribing rate of 3.3%.
How many Physician Assistant providers are there in the US?
There are 149,975 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
What drugs does CHARLES DENNEHEY prescribe most often?
Based on 2023 Medicare Part D data, CHARLES DENNEHEY's most frequently prescribed drugs include Cefdinir, Azithromycin, Amoxicillin-Clavulanate Potass. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHARLES DENNEHEY accept Medicare?
CHARLES DENNEHEY appears in CMS Medicare data with 544 Part D claims and 308 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHARLES DENNEHEY's credentials?
CHARLES DENNEHEY's NPI is 1083253306. 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