2026 NPPES data Family Nurse Practitioner NPI 1043863970 ARNP
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Brooke Stewart, ARNP

Family Nurse Practitioner in Mason 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 209,817 in Family Nurse Practitioner, 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
5K
Medicare Part D claims · 547 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Brooke Stewart, ARNP filed 5,244 Medicare Part D claims in 2023 as a Family Nurse Practitioner in Mason City, Iowa, prescribing 92% generic.

5K
Part D claims, 2023
92%
generic prescribing

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.

Brooke Stewart, ARNP's Medicare Part D volume vs every U.S. prescriber

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

5,244 Top 6% higher than 94% 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%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2K+: 213,991 prescribers (16%). This entry sits in this band. 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 Brooke Stewart, ARNP?

Quality data not reported

NPI registry status

Active

Issued 07/19/2019

NPI 1043863970

Primary specialty

Family Nurse Practitioner

High-volume

209,817 US NPIs in this specialty

Medicare Part D claims

5,244 329% vs specialty avg

2023 prescription claims

Specialty avg: 1,222

Specialty distribution in Iowa

How Family Nurse Practitioner 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 Nurse Practitioner - 3.9%Family Nurse Practitioner3.9%
Largest specialties in Iowa (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Family Nurse Practitioner. Verify directly:

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).

Brooke Stewart, ARNP appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding ARNP credentials at 1631 4TH ST SW, Mason City, IA, 50401, with a listed phone of (641) 428-6000. NPI 1043863970 was issued on 07/19/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Stewart 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 5,244 prescription claims written by this provider, covering 547 Medicare beneficiaries and totaling roughly $226K in drug spend, split 8% brand-name and 92% generic by claim count, with an opioid prescribing rate of 3.8%. 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 Nurse Practitioner is a high-volume specialty nationwide, with 209,817 enrolled providers across 56 states and an average of 1,222 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

1631 4TH ST SW
Mason City, IA 50401

Provider Details

NPI 1043863970
Specialty Family Nurse Practitioner
Credentials ARNP
Gender Female
NPI Issued 07/19/2019

Hospital and facility affiliations

Facilities where Brooke Stewart, 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.

North Iowa Mercy Clinics
Mason 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).

Brand vs generic prescribing mix · Generic-heavy

Brooke Stewart, ARNP - brand share 8.0%
Family Nurse Practitioner average

8% brand-name claims vs 92% generic, on 5,244 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.

5,244
Total Claims
$226K
Total Drug Cost
547
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
11,789
Total Day Supply
340,572
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$137K
Generic Drug Cost
$89K
Opioid Claims
198 (3.8% rate)
Antibiotic Claims
156

Patient Demographics

Average Patient Age
73.5 years
Avg HCC Risk Score
0.95
Gender Split
95% female / 5% male
Age Distribution
<65: 35, 65-74: 293, 75-84: 168, 85+: 51

Top Prescribed Drugs (Medicare Part D)

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

What Brooke Stewart, ARNP 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
Atorvastatin Calcium
343
Levothyroxine Sodium
265
Omeprazole
203
Losartan Potassium
201
Lisinopril
164
Amlodipine Besylate
158
Metoprolol Succinate
133
Gabapentin
123
Simvastatin
123
Sertraline Hcl
114

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

Family Nurse Practitioner Overview

How Brooke Stewart, ARNP fits within the Family Nurse Practitioner landscape nationally.

209,817
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider

Brooke Stewart, ARNP's 5,244 claims are above the specialty average of 1,222.

Nearby Family Nurse Practitioner Providers in Iowa

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

Compare Family Nurse Practitioner 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 Nurse Practitioner 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 Brooke Stewart, ARNP's specialty?
Brooke Stewart, ARNP specializes in Family Nurse Practitioner and practices in Mason City, Iowa. Credentials: ARNP.
How much does Brooke Stewart, ARNP prescribe under Medicare Part D?
In 2023, Brooke Stewart, ARNP wrote 5,244 Medicare Part D claims totaling $226K in drug costs for 547 beneficiaries.
Where is Brooke Stewart, ARNP located?
Brooke Stewart, ARNP is located at 1631 4TH ST SW, Mason City, IA, 50401. Phone: (641) 428-6000.
What is Brooke Stewart, ARNP's NPI number?
Brooke Stewart, ARNP's National Provider Identifier (NPI) is 1043863970, issued on 07/19/2019.
Does Brooke Stewart, ARNP prescribe more brand-name or generic drugs?
Brooke Stewart, ARNP's prescribing is 8% brand-name and 92% generic drugs by claim count, with $137K in brand drug costs.
Does Brooke Stewart, ARNP prescribe opioids?
Yes, Brooke Stewart, ARNP had 198 opioid claims in 2023 with an opioid prescribing rate of 3.8%.
How many Family Nurse Practitioner providers are there in the US?
There are 209,817 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,222 Medicare Part D claims per year.
What drugs does Brooke Stewart, ARNP prescribe most often?
Based on 2023 Medicare Part D data, Brooke Stewart, ARNP's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Omeprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Brooke Stewart, ARNP accept Medicare?
Brooke Stewart, ARNP appears in CMS Medicare data with 5,244 Part D claims and 547 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Brooke Stewart, ARNP's credentials?
Brooke Stewart, ARNP's NPI is 1043863970 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.