2026 NPPES data Family Health Clinical Nurse Specialist NPI 1407258130 ARNP
Verify on CMS →

Lois Pirozek, ARNP

Family Health Clinical Nurse Specialist in Sioux City, Iowa. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers — including 589 in Family Health Clinical Nurse Specialist, 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
47
Medicare Part D claims · 38 beneficiaries · Family Health Clinical Nurse Specialist avg: 1K
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Lois Pirozek, ARNP filed 47 Medicare Part D claims in 2023 as a Family Health Clinical Nurse Specialist in Sioux City, Iowa.

47
Part D claims, 2023

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.

Lois Pirozek, ARNP's Medicare Part D volume vs every U.S. prescriber

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

47 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 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

What does the federal data show about Lois Pirozek, ARNP?

Quality data not reported

NPI registry status

Active

Issued 09/25/2014

NPI 1407258130

Primary specialty

Family Health Clinical Nurse Specialist

Niche

589 US NPIs in this specialty

Medicare Part D claims

47 97% vs specialty avg

2023 prescription claims

Specialty avg: 1,429

Specialty distribution in Iowa

How Family Health Clinical Nurse Specialist compares to other specialties among Iowa providers

Iowa providers

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

Pharmacist — 6.6%Pharmacist6.6%Physical Therapist — 5.5%Physical Therapist5.5%Mental Health Counselor — 5%Mental Health Counselor5%Family Medicine Physician — 4.8%Family Medicine Physician4.8%Chiropractor — 4.2%Chiropractor4.2%Clinical Social Worker — 4.1%Clinical Social Worker4.1%Family Health Clinical Nurse Specialist — 0%Family Health Clinical Nurse Specialist0%
Largest specialties in Iowa (% of in-state providers)

Specialty board-certification context

Estimated specialty board-certified rate — Family Health Clinical Nurse Specialist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Family Health Clinical Nurse Specialist ABMS/AOA estimate

Est. board-certified rate (Family Health Clinical Nurse Specialist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Family Health Clinical Nurse Specialist) — 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).

Lois Pirozek, ARNP appears in the CMS NPPES registry as a Family Health Clinical Nurse Specialist provider holding ARNP credentials at 1404 34TH ST., Sioux City, IA, 51104, with a listed phone of (712) 251-5175. NPI 1407258130 was issued on 09/25/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Pirozek 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 47 prescription claims written by this provider, covering 38 Medicare beneficiaries and totaling roughly $424 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.

Family Health Clinical Nurse Specialist is a narrow specialty nationwide, with 589 enrolled providers across 48 states and an average of 1,429 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

1404 34TH ST.
Sioux City, IA 51104

Provider Details

NPI 1407258130
Specialty Family Health Clinical Nurse Specialist
Credentials ARNP
Gender Female
NPI Issued 09/25/2014

Hospital and facility affiliations

Facilities where Lois Pirozek, ARNP 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.

Family Health Care OF Siouxland PLC
Sioux City, IA

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

Medicare Part D Prescribing Data

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

47
Total Claims
$424
Total Drug Cost
38
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
47
Total Day Supply
369
Generic Drug Cost
$422
Antibiotic Claims
22

Patient Demographics

Average Patient Age
68.6 years
Avg HCC Risk Score
1.49
Gender Split
55% female / 45% male

Family Health Clinical Nurse Specialist Overview

How Lois Pirozek, ARNP fits within the Family Health Clinical Nurse Specialist landscape nationally.

589
Family Health Clinical Nurse Specialist Providers in US
48
States with Family Health Clinical Nurse Specialist
1,429
Avg Claims per Provider

Lois Pirozek, ARNP's 47 claims are below the specialty average of 1,429.

Nearby Family Health Clinical Nurse Specialist Providers in Iowa

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

Compare Family Health Clinical Nurse Specialist 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 Iowa medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Family Health Clinical Nurse Specialist 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 Lois Pirozek, ARNP's specialty?
Lois Pirozek, ARNP specializes in Family Health Clinical Nurse Specialist and practices in Sioux City, Iowa. Credentials: ARNP.
How much does Lois Pirozek, ARNP prescribe under Medicare Part D?
In 2023, Lois Pirozek, ARNP wrote 47 Medicare Part D claims totaling $424 in drug costs for 38 beneficiaries.
Where is Lois Pirozek, ARNP located?
Lois Pirozek, ARNP is located at 1404 34TH ST., Sioux City, IA, 51104. Phone: (712) 251-5175.
What is Lois Pirozek, ARNP's NPI number?
Lois Pirozek, ARNP's National Provider Identifier (NPI) is 1407258130, issued on 09/25/2014.
How many Family Health Clinical Nurse Specialist providers are there in the US?
There are 589 Family Health Clinical Nurse Specialist providers across 48 states in the US. The average Family Health Clinical Nurse Specialist provider writes 1,429 Medicare Part D claims per year.
Does Lois Pirozek, ARNP accept Medicare?
Lois Pirozek, ARNP appears in CMS Medicare data with 47 Part D claims and 38 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Lois Pirozek, ARNP's credentials?
Lois Pirozek, ARNP's NPI is 1407258130 with credentials ARNP. 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

Compiled from official public sources by the PlainDoctor editorial team.