2026 NPPES data Primary Care Nurse Practitioner NPI 1689009193 A.P.N
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SIZHU PROSNIAK, A.P.N

Primary Care Nurse Practitioner in FORT WAYNE, Indiana. 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
4K
Medicare Part D claims · 524 beneficiaries · Primary Care Nurse Practitioner avg: 1K
Generic prescribing
85%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
81.234/100
▼ 2 pts below national avg 83.1 · [object Object]
Industry payments
$21.67
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: SIZHU PROSNIAK, A.P.N is a Primary Care Nurse Practitioner ([object Object]) practicing in FORT WAYNE, Indiana with a Medicare Part D prescribing footprint of 4K claims across 524 beneficiaries — 15% brand-name prescribing . Their CMS MIPS Final Score of 81.234/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $21.67 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: SIZHU PROSNIAK, A.P.N reported a CMS MIPS final score of 81.234 out of 100, below the 83.1 national average, and filed 4,386 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

SIZHU PROSNIAK, A.P.N at a glance

Near national average

NPI registry status

Active

Issued 09/04/2013

NPI 1689009193

Primary specialty

Primary Care Nurse Practitioner

Mid-sized

10,138 US NPIs in this specialty

Medicare Part D claims

4,386 222% vs specialty avg

2023 prescription claims

Specialty avg: 1,363

MIPS final score

81.234/100 1.8659999999999997% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Indiana

How Primary Care Nurse Practitioner compares to other specialties among Indiana providers

Indiana providers

Primary Care Nurse Practitioner share within Indiana

1. Primary Care Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Primary Care Nurse Practitioner share within Indiana

Medicare quality performance — MIPS

SIZHU PROSNIAK, A.P.N's 2023 MIPS final score plotted against the Primary Care Nurse Practitioner national average

Near national average
MIPS Final Score
81.234/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Primary Care Nurse Practitioner) — 81.234/100 vs national avg 83.1

0%100%National avg83%81.2%
MIPS final score (Primary Care Nurse Practitioner) — 81.234/100 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).

SIZHU PROSNIAK, A.P.N is a Primary Care Nurse Practitioner provider practicing in FORT WAYNE, Indiana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: A.P.N. NPI: 1689009193. 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.

SIZHU PROSNIAK, A.P.N appears in the CMS NPPES registry as a Primary Care Nurse Practitioner provider holding A.P.N credentials at 8233 GLENCARIN BLVD, FORT WAYNE, IN, 46804, with a listed phone of (260) 425-5470. NPI 1689009193 was issued on 09/04/2013. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PROSNIAK 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 4,386 prescription claims written by this provider, covering 524 Medicare beneficiaries and totaling roughly $674K in drug spend, split 15% brand-name and 85% generic by claim count, with an opioid prescribing rate of 1.3%. 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 81.234/100 for the 2023 performance year (Quality 68.9532, Cost 68.4936), compared with the national average of 83.1.

Primary Care Nurse Practitioner is a mid-sized specialty nationwide, with 10,138 enrolled providers across 54 states and an average of 1,363 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

8233 GLENCARIN BLVD
FORT WAYNE, IN 46804

Provider Details

NPI 1689009193
Specialty Primary Care Nurse Practitioner
Credentials A.P.N
Gender Female
NPI Issued 09/04/2013

CMS Quality Score (MIPS)

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

81.234
Final Score
Avg: 83.1
68.9532
Quality
68.4936
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where SIZHU PROSNIAK, A.P.N 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.

PARKVIEW HEALTH SYSTEM INC
FORT WAYNE, IN

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 SIZHU PROSNIAK, A.P.N. Source: openpaymentsdata.cms.gov.

Total received

$22

Largest payer

Lilly USA, LLC

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

SIZHU PROSNIAK, A.P.N — brand share 15.0%
Specialty average (est.)

15% brand-name claims vs 85% generic, on 4,386 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.

4,386
Total Claims
$674K
Total Drug Cost
524
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
9,509
Total Day Supply
272,936
Brand vs Generic
15% brand / 85% generic
Brand Drug Cost
$563K
Generic Drug Cost
$107K
Opioid Claims
56 (1.3% rate)
Antibiotic Claims
166

Patient Demographics

Average Patient Age
72.7 years
Avg HCC Risk Score
1.36
Gender Split
71% female / 29% male
Age Distribution
<65: 61, 65-74: 244, 75-84: 173, 85+: 46

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
221
Levothyroxine Sodium
179
Amlodipine Besylate
155
Lisinopril
118
Losartan Potassium
111
Omeprazole
97
Gabapentin
94
Rosuvastatin Calcium
84
Escitalopram Oxalate
81
Trazodone Hcl
77

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

Primary Care Nurse Practitioner Overview

How SIZHU PROSNIAK, A.P.N fits within the Primary Care Nurse Practitioner landscape nationally.

10,138
Primary Care Nurse Practitioner Providers in US
54
States with Primary Care Nurse Practitioner
1,363
Avg Claims per Provider

SIZHU PROSNIAK, A.P.N's 4,386 claims are above the specialty average of 1,363.

Nearby Primary Care Nurse Practitioner Providers in Indiana

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

Compare Primary Care Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is SIZHU PROSNIAK, A.P.N's specialty?
SIZHU PROSNIAK, A.P.N specializes in Primary Care Nurse Practitioner and practices in FORT WAYNE, Indiana. Credentials: A.P.N.
How much does SIZHU PROSNIAK, A.P.N prescribe under Medicare Part D?
In 2023, SIZHU PROSNIAK, A.P.N wrote 4,386 Medicare Part D claims totaling $674K in drug costs for 524 beneficiaries.
What is SIZHU PROSNIAK, A.P.N's Medicare quality score?
SIZHU PROSNIAK, A.P.N has a CMS MIPS Final Score of 81.234/100 (Quality: 68.9532, Cost: 68.4936). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is SIZHU PROSNIAK, A.P.N located?
SIZHU PROSNIAK, A.P.N is located at 8233 GLENCARIN BLVD, FORT WAYNE, IN, 46804. Phone: (260) 425-5470.
What is SIZHU PROSNIAK, A.P.N's NPI number?
SIZHU PROSNIAK, A.P.N's National Provider Identifier (NPI) is 1689009193, issued on 09/04/2013.
Does SIZHU PROSNIAK, A.P.N prescribe more brand-name or generic drugs?
SIZHU PROSNIAK, A.P.N's prescribing is 15% brand-name and 85% generic drugs by claim count, with $563K in brand drug costs.
Does SIZHU PROSNIAK, A.P.N prescribe opioids?
Yes, SIZHU PROSNIAK, A.P.N had 56 opioid claims in 2023 with an opioid prescribing rate of 1.3%.
How many Primary Care Nurse Practitioner providers are there in the US?
There are 10,138 Primary Care Nurse Practitioner providers across 54 states in the US. The average Primary Care Nurse Practitioner provider writes 1,363 Medicare Part D claims per year.
What drugs does SIZHU PROSNIAK, A.P.N prescribe most often?
Based on 2023 Medicare Part D data, SIZHU PROSNIAK, A.P.N's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SIZHU PROSNIAK, A.P.N accept Medicare?
SIZHU PROSNIAK, A.P.N appears in CMS Medicare data with 4,386 Part D claims and 524 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SIZHU PROSNIAK, A.P.N's credentials?
SIZHU PROSNIAK, A.P.N's NPI is 1689009193 with credentials A.P.N. 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