2026 NPPES data General Practice Physician NPI 1033777362 PA-C
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JOHN MLADUCKY, PA-C

General Practice Physician in LEWISTON, Maine. 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
325
Medicare Part D claims · 252 beneficiaries · General Practice Physician avg: 3K
Industry payments
$531.2
21 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

JOHN MLADUCKY, PA-C filed 325 Medicare Part D claims in 2023 as a General Practice Physician in LEWISTON, Maine.

325
Part D claims, 2023
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.

JOHN MLADUCKY, PA-C's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

325 Top 43% higher than 57% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

JOHN MLADUCKY, PA-C practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — 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 JOHN MLADUCKY, PA-C?

Quality data not reported

NPI registry status

Active

Issued 06/01/2019

NPI 1033777362

Primary specialty

General Practice Physician

Mid-sized

16,677 US NPIs in this specialty

Medicare Part D claims

325 89% vs specialty avg

2023 prescription claims

Specialty avg: 2,872

Specialty distribution in Maine

How General Practice Physician compares to other specialties among Maine providers

Maine providers

General Practice Physician share within Maine

1. General Practice Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
General Practice Physician share within Maine

Specialty board-certification context

Estimated specialty board-certified rate — General Practice Physician (ABMS / AOA reference)

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

Est. board-certified rate (General Practice Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (General Practice 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).

JOHN MLADUCKY, PA-C appears in the CMS NPPES registry as a General Practice Physician provider holding PA-C credentials at 300 MAIN ST, LEWISTON, ME, 04240, with a listed phone of (207) 795-0111. NPI 1033777362 was issued on 06/01/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MLADUCKY 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 325 prescription claims written by this provider, covering 252 Medicare beneficiaries and totaling roughly $5K in drug spend. 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.

General Practice Physician is a mid-sized specialty nationwide, with 16,677 enrolled providers across 56 states and an average of 2,872 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

300 MAIN ST
LEWISTON, ME 04240

Provider Details

NPI 1033777362
Specialty General Practice Physician
Credentials PA-C
Gender Male
NPI Issued 06/01/2019

Hospital and facility affiliations

Facilities where JOHN MLADUCKY, PA-C 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.

CENTRAL MAINE MEDICAL CENTER
★★★★☆ 4/5
LEWISTON, ME
Acute Care Hospitals
CMS CCN: 200024
MERCY HOSPITAL
PORTLAND, ME

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 JOHN MLADUCKY, PA-C. Source: openpaymentsdata.cms.gov.

Total received

$531

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.

Medicare Part D Prescribing Data

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

325
Total Claims
$5K
Total Drug Cost
252
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
325
Total Day Supply
2,599
Generic Drug Cost
$4K
Antibiotic Claims
171

Patient Demographics

Average Patient Age
71.5 years
Avg HCC Risk Score
1.06
Gender Split
68% female / 32% male
Age Distribution
<65: 37, 65-74: 118, 75-84: 75, 85+: 22

Top Prescribed Drugs (Medicare Part D)

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

What JOHN MLADUCKY, PA-C 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
Prednisone
56
Cefdinir
45
Cephalexin
37
Doxycycline Hyclate
34
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
22
Albuterol Sulfate Hfa
Albuterol Sulfate
18

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

General Practice Physician Overview

How JOHN MLADUCKY, PA-C fits within the General Practice Physician landscape nationally.

16,677
General Practice Physician Providers in US
56
States with General Practice Physician
2,872
Avg Claims per Provider

JOHN MLADUCKY, PA-C's 325 claims are below the specialty average of 2,872.

Nearby General Practice Physician Providers in Maine

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

Compare General Practice Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JOHN MLADUCKY, PA-C's specialty?
JOHN MLADUCKY, PA-C specializes in General Practice Physician and practices in LEWISTON, Maine. Credentials: PA-C.
How much does JOHN MLADUCKY, PA-C prescribe under Medicare Part D?
In 2023, JOHN MLADUCKY, PA-C wrote 325 Medicare Part D claims totaling $5K in drug costs for 252 beneficiaries.
Where is JOHN MLADUCKY, PA-C located?
JOHN MLADUCKY, PA-C is located at 300 MAIN ST, LEWISTON, ME, 04240. Phone: (207) 795-0111.
What is JOHN MLADUCKY, PA-C's NPI number?
JOHN MLADUCKY, PA-C's National Provider Identifier (NPI) is 1033777362, issued on 06/01/2019.
How many General Practice Physician providers are there in the US?
There are 16,677 General Practice Physician providers across 56 states in the US. The average General Practice Physician provider writes 2,872 Medicare Part D claims per year.
What drugs does JOHN MLADUCKY, PA-C prescribe most often?
Based on 2023 Medicare Part D data, JOHN MLADUCKY, PA-C's most frequently prescribed drugs include Prednisone, Cefdinir, Cephalexin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JOHN MLADUCKY, PA-C accept Medicare?
JOHN MLADUCKY, PA-C appears in CMS Medicare data with 325 Part D claims and 252 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JOHN MLADUCKY, PA-C's credentials?
JOHN MLADUCKY, PA-C's NPI is 1033777362 with credentials PA-C. 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