2026 NPPES data Pediatrics Physician NPI 1588707137 MD
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JENNIFER KOZIOL WOZNIAK, MD

Pediatrics Physician in ST. PAUL, Minnesota. 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
918
Medicare Part D claims · 169 beneficiaries · Pediatrics Physician avg: 762
Generic prescribing
70%
generic claims · 30% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

JENNIFER KOZIOL WOZNIAK, MD filed 918 Medicare Part D claims in 2023 as a Pediatrics Physician in ST. PAUL, Minnesota, prescribing 70% generic.

918
Part D claims, 2023
70%
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.

JENNIFER KOZIOL WOZNIAK, MD's Medicare Part D volume vs every U.S. prescriber

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

918 Top 25% higher than 75% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). This entry sits in this band. 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)

JENNIFER KOZIOL WOZNIAK, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 JENNIFER KOZIOL WOZNIAK, MD?

Quality data not reported

NPI registry status

Active

Issued 02/14/2007

NPI 1588707137

Primary specialty

Pediatrics Physician

High-volume

80,574 US NPIs in this specialty

Medicare Part D claims

918 20% vs specialty avg

2023 prescription claims

Specialty avg: 762

Specialty distribution in Minnesota

How Pediatrics Physician compares to other specialties among Minnesota providers

Minnesota providers

Pediatrics Physician share within Minnesota

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

Specialty board-certification context

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

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

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

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

JENNIFER KOZIOL WOZNIAK, MD appears in the CMS NPPES registry as a Pediatrics Physician provider holding MD credentials at 401 PHALEN BLVD - MS 41102A, ST. PAUL, MN, 55130, with a listed phone of (651) 254-7560. NPI 1588707137 was issued on 02/14/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KOZIOL WOZNIAK 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 918 prescription claims written by this provider, covering 169 Medicare beneficiaries and totaling roughly $318K in drug spend, split 30% brand-name and 70% 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.

Pediatrics Physician is a high-volume specialty nationwide, with 80,574 enrolled providers across 56 states and an average of 762 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

401 PHALEN BLVD - MS 41102A
ST. PAUL, MN 55130

Provider Details

NPI 1588707137
Specialty Pediatrics Physician
Credentials MD
Gender Female
NPI Issued 02/14/2007

Hospital and facility affiliations

Facilities where JENNIFER KOZIOL WOZNIAK, MD 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.

GROUP HEALTH PLAN INC
STILLWATER, MN

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

Brand vs generic prescribing mix · Above average

JENNIFER KOZIOL WOZNIAK, MD — brand share 30.0%
Specialty average (est.)

30% brand-name claims vs 70% generic, on 918 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.

918
Total Claims
$318K
Total Drug Cost
169
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,835
Total Day Supply
52,508
Brand vs Generic
30% brand / 70% generic
Brand Drug Cost
$291K
Generic Drug Cost
$27K
Antibiotic Claims
14

Patient Demographics

Average Patient Age
70.1 years
Avg HCC Risk Score
0.86
Gender Split
69% female / 31% male

Top Prescribed Drugs (Medicare Part D)

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

What JENNIFER KOZIOL WOZNIAK, MD 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
Montelukast Sodium
214
Fluticasone Propionate
82
Ipratropium Bromide
72
Famotidine
64
Albuterol Sulfate Hfa
Albuterol Sulfate
56
Azelastine Hcl
43
Flovent Hfa
Fluticasone Propionate
28
Advair Hfa
Fluticasone Propion/Salmeterol
24
Epinephrine
23
Prednisone
22

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

Pediatrics Physician Overview

How JENNIFER KOZIOL WOZNIAK, MD fits within the Pediatrics Physician landscape nationally.

80,574
Pediatrics Physician Providers in US
56
States with Pediatrics Physician
762
Avg Claims per Provider

JENNIFER KOZIOL WOZNIAK, MD's 918 claims are above the specialty average of 762.

Nearby Pediatrics Physician Providers in Minnesota

Other clinicians with the same primary specialty enrolled in Minnesota, drawn from the same CMS NPPES roster as KOZIOL WOZNIAK.

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

Frequently Asked Questions

What is JENNIFER KOZIOL WOZNIAK, MD's specialty?
JENNIFER KOZIOL WOZNIAK, MD specializes in Pediatrics Physician and practices in ST. PAUL, Minnesota. Credentials: MD.
How much does JENNIFER KOZIOL WOZNIAK, MD prescribe under Medicare Part D?
In 2023, JENNIFER KOZIOL WOZNIAK, MD wrote 918 Medicare Part D claims totaling $318K in drug costs for 169 beneficiaries.
Where is JENNIFER KOZIOL WOZNIAK, MD located?
JENNIFER KOZIOL WOZNIAK, MD is located at 401 PHALEN BLVD - MS 41102A, ST. PAUL, MN, 55130. Phone: (651) 254-7560.
What is JENNIFER KOZIOL WOZNIAK, MD's NPI number?
JENNIFER KOZIOL WOZNIAK, MD's National Provider Identifier (NPI) is 1588707137, issued on 02/14/2007.
Does JENNIFER KOZIOL WOZNIAK, MD prescribe more brand-name or generic drugs?
JENNIFER KOZIOL WOZNIAK, MD's prescribing is 30% brand-name and 70% generic drugs by claim count, with $291K in brand drug costs.
How many Pediatrics Physician providers are there in the US?
There are 80,574 Pediatrics Physician providers across 56 states in the US. The average Pediatrics Physician provider writes 762 Medicare Part D claims per year.
What drugs does JENNIFER KOZIOL WOZNIAK, MD prescribe most often?
Based on 2023 Medicare Part D data, JENNIFER KOZIOL WOZNIAK, MD's most frequently prescribed drugs include Montelukast Sodium, Fluticasone Propionate, Ipratropium Bromide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JENNIFER KOZIOL WOZNIAK, MD accept Medicare?
JENNIFER KOZIOL WOZNIAK, MD appears in CMS Medicare data with 918 Part D claims and 169 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JENNIFER KOZIOL WOZNIAK, MD's credentials?
JENNIFER KOZIOL WOZNIAK, MD's NPI is 1588707137 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.
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