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Nurse Practitioner

Brooke L. Stewart

Works at hospitals in Charles City, IA · Britt, IA · Mason City, IA · Iowa

Summary

Brooke L. Stewart is a nurse practitioner at 1000 4th St SW, Mason City, IA 50401. Phone: (641) 428-6000. Accepts Medicare assignment. In 2024, Brooke L. Stewart had 522 Original Medicare patients and 2,094 services. NPI 1043863970. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Brooke L. Stewart, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Brooke L. Stewart accept Medicare assignment?
Yes. Medicare's clinician data says Brooke L. Stewart accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Brooke L. Stewart see?
In 2024, CMS data shows 522 Original Medicare patients and 2,094 services for Brooke L. Stewart. This counts Original Medicare only and measures volume, not quality.
What is Brooke L. Stewart's NPI number?
1043863970. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Brooke L. Stewart, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients522
Services billed to Medicare2,094
Different services or procedures18
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)920 services
  2. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)573 services
  3. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)304 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)199 services
  5. Transitional care management services for problem of at least moderate complexity (99495)29 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol75%
  • High blood pressure74%
  • Arthritis45%
  • Depression32%
  • Anxiety32%
  • Osteoporosis25%

Hospitals where Brooke L. Stewart works

Medicare's Facility Affiliation Data lists Brooke L. Stewart at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Brooke L. Stewart is enrolled with Medicare (CMS data updated October 2, 2026).

  • 1000 4th St SWMason City, IA 50401
  • 1631 4th St SW, 114b Mercyone North Iowa Women'S Health CarMason City, IA 50401 (641) 428‑6000

Group practices

Medicare enrollment lists Brooke L. Stewart as a member of this group (CMS data updated October 2, 2026).

  • North Iowa Mercy Clinics302 clinicians in the group

Specialties

Find other clinicians: Nurse Practitioner, Iowa →

Other nurse practitioners in Mason City

Clinicians with the same Medicare primary specialty in Mason City, IA — not a recommendation.

All nurse practitioners in Mason City →

Other clinicians in North Iowa Mercy Clinics

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

Graduation year2019
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1043863970
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians