2026 NPPES data Internal Medicine Physician NPI 1144684945 D.O.
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Zachary Kwasnicka, D.O.

Internal Medicine Physician in Warren, Ohio. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 172,858 in 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
201
Medicare Part D claims · 103 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
90.9/100
▲ 8 pts above national avg 83.1 · Exceptional
Industry payments
$1.0K
58 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Zachary Kwasnicka, D.O. reported a CMS MIPS final score of 90.9/100 - above the 83.1 national average - and filed 201 Medicare Part D claims in 2023.

90.9/100
MIPS score · +8 vs avg
201
Part D claims, 2023
88%
generic prescribing
Likely
board-certified (heuristic)

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.

Zachary Kwasnicka, D.O.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure

91 Top 40% higher than 60% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90+: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored 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.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Zachary Kwasnicka, D.O. sits

This provider among internal medicine physician peers

Across the 36,260 internal medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Zachary Kwasnicka, D.O. writes more Part D claims than 24% of them and scores higher on MIPS quality than 61% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 38Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 93Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 58Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 3Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 33Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 2Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 72Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 83Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 40Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 35Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 67Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 37Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 80Zachary Kwasnicka, D.O.-Part D claim volume, percentile in specialty: 24 · MIPS quality, percentile: 61
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one internal medicine physician peer from a representative sample of 60; the gold marker is Zachary Kwasnicka, D.O.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

Board certification likely (heuristic, not verified)

Zachary Kwasnicka, D.O. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - 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 Zachary Kwasnicka, D.O.?

High performer (top quartile)

NPI registry status

Active

Issued 04/07/2016

NPI 1144684945

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

201 93% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

MIPS final score

90.9/100 7.8 pts vs avg

Exceptional band

vs 83.1 national avg

Specialty distribution in Ohio

How Internal Medicine Physician compares to other specialties among Ohio providers

Ohio providers

Largest specialties in Ohio (% of in-state providers)

Case Manager/Care Coordinator - 10.9%Case Manager/Care Coordinator10.9%Student in an Organized Health Care Education/Training Program - 4.7%Student in an Organized Health Care Education/Training Program4.7%Licensed Practical Nurse - 4%Licensed Practical Nurse4%Addiction (Substance Use Disorder) Counselor - 3.5%Addiction (Substance Use Disorder) Counselor3.5%Registered Nurse - 3.4%Registered Nurse3.4%Pharmacist - 3.4%Pharmacist3.4%Internal Medicine Physician - 1.9%Internal Medicine Physician1.9%
Largest specialties in Ohio (% of in-state providers)

Medicare quality performance, MIPS

Zachary Kwasnicka, D.O.'s 2023 MIPS final score plotted against the Internal Medicine Physician national average

High performer (top quartile)
MIPS Final Score
90.9/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Internal Medicine Physician) - 90.9/100 vs national avg 83.1

0%100%National avg83%90.9%
MIPS final score (Internal Medicine Physician) - 90.9/100 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).

Zachary Kwasnicka, D.O. appears in the CMS NPPES registry as a Internal Medicine Physician provider holding D.O. credentials at 1296 TOD PL NW, Warren, OH, 44485, with a listed phone of (330) 841-4643. NPI 1144684945 was issued on 04/07/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Kwasnicka 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 201 prescription claims written by this provider, covering 103 Medicare beneficiaries and totaling roughly $10K in drug spend, split 12% brand-name and 88% generic by claim count. 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 90.9/100 for the 2023 performance year (Quality 81.8), compared with the national average of 83.1.

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

1296 TOD PL NW
Warren, OH 44485

Provider Details

NPI 1144684945
Specialty Internal Medicine Physician
Credentials D.O.
Gender Male
NPI Issued 04/07/2016

CMS Quality Score (MIPS)

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

90.9046
Final Score
Avg: 83.1
81.8092
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where Zachary Kwasnicka, D.O. 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.

University Primary Care Practices Inc
Conneaut, OH

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

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 Zachary Kwasnicka, D.O.. Source: openpaymentsdata.cms.gov.

Total received

$1.0K

Largest payer

ABBVIE 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.

License & disciplinary context - Ohio OMB 2023 annual report

Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~48K Ohio medical licensees in 2023 - they are NOT specific to Zachary Kwasnicka, D.O.. To verify Zachary Kwasnicka, D.O.'s current license status, search the OMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

158
Total board actions, Ohio 2023
Across 154 cases
3.29
Actions per 1,000 licensees
Ohio statewide rate
probation
Most common action type
56 cases

OMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Ohio disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

Zachary Kwasnicka, D.O. - brand share 12.0%
Internal Medicine Physician average

12% brand-name claims vs 88% generic, on 201 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.

201
Total Claims
$10K
Total Drug Cost
103
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
255
Total Day Supply
5,926
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$4K
Generic Drug Cost
$6K
Antibiotic Claims
14

Patient Demographics

Average Patient Age
69.3 years
Avg HCC Risk Score
1.42
Gender Split
71% female / 29% male

Top Prescribed Drugs (Medicare Part D)

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

What Zachary Kwasnicka, D.O. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Pantoprazole Sodium
53
Omeprazole
28
Colestipol Hcl
13
Gavilyte-G
"Peg3350/Sod Sulf
N/A

* 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 Zachary Kwasnicka, D.O. 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

Zachary Kwasnicka, D.O.'s 201 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Ohio

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

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

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 Ohio medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby 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.

Frequently Asked Questions

What is Zachary Kwasnicka, D.O.'s specialty?
Zachary Kwasnicka, D.O. specializes in Internal Medicine Physician and practices in Warren, Ohio. Credentials: D.O..
How much does Zachary Kwasnicka, D.O. prescribe under Medicare Part D?
In 2023, Zachary Kwasnicka, D.O. wrote 201 Medicare Part D claims totaling $10K in drug costs for 103 beneficiaries.
What is Zachary Kwasnicka, D.O.'s Medicare quality score?
Zachary Kwasnicka, D.O. has a CMS MIPS Final Score of 90.9/100 (Quality: 81.8). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Zachary Kwasnicka, D.O. located?
Zachary Kwasnicka, D.O. is located at 1296 TOD PL NW, Warren, OH, 44485. Phone: (330) 841-4643.
What is Zachary Kwasnicka, D.O.'s NPI number?
Zachary Kwasnicka, D.O.'s National Provider Identifier (NPI) is 1144684945, issued on 04/07/2016.
Does Zachary Kwasnicka, D.O. prescribe more brand-name or generic drugs?
Zachary Kwasnicka, D.O.'s prescribing is 12% brand-name and 88% generic drugs by claim count, with $4K in brand drug costs.
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 Zachary Kwasnicka, D.O. prescribe most often?
Based on 2023 Medicare Part D data, Zachary Kwasnicka, D.O.'s most frequently prescribed drugs include Pantoprazole Sodium, Omeprazole, Colestipol Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Zachary Kwasnicka, D.O. accept Medicare?
Zachary Kwasnicka, D.O. appears in CMS Medicare data with 201 Part D claims and 103 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Zachary Kwasnicka, D.O.'s credentials?
Zachary Kwasnicka, D.O.'s NPI is 1144684945 with credentials D.O.. 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

Compiled from official public sources by the PlainDoctor editorial team.