NPPES file of Aug 9, 2026

Katherine Marie Brockway, NP

Family Nurse Practitioner · Oconomowoc, WI

Katherine Marie Brockway, NP is a family nurse practitioner with a practice address in Oconomowoc, Wisconsin, and NPI 1891500906, issued on Feb 7, 2025. Check the license (Wisconsin 16470, as entered in NPPES) with the Wisconsin board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1891500906
Name
Katherine Marie Brockway
Credential
NP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
16470 WI
16470-33 WI
221523-30 WI
Self-reported in NPPES; status is on the state search
Practice location
1185 Corporate Center Dr, Oconomowoc, WI 53066
Phone
(262) 928-8400
Enumerated
Feb 7, 2025
Record last updated
Mar 14, 2025
Medicare enrollment
Enrolled (PECOS I20250314000640); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest family nurse practitioner records → All 2,814 in Wisconsin → Look up another NPI →

Also registered at 1185 Corporate Center Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Charles Allen, M.D.Family Medicine Physician1871804336
  2. Dan Cleary, MDInternal Medicine Physician1972615136
  3. Eric Conradson, M.D.Internal Medicine Physician1518976232
  4. Firas Ghanem, M.D.Cardiovascular Disease Physician1124008529
  5. John Gucciardi, M.D.Family Medicine Physician1760417430
  6. Brett Linzer, M.D.Internal Medicine Physician1083686653

Verify Katherine Marie Brockway in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Wisconsin board licenses this profession
    Search for license 16470    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Wisconsin license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Prohealth Medical Group IncPewaukee, WI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Katherine Marie Brockway among 2,814 family nurse practitioner records in Wisconsin

Katherine Marie Brockway, NP is one of 2,814 family nurse practitioner records with a practice address in Wisconsin. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2025, is newer than 90% of them.

  • NPI issued2025 · 90% of these records are older, 4% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2024 · median 2019 among the 1,740 with a school on file
  • Record last updated2025 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

10 family nurse practitioner records list a practice address in Oconomowoc

They are 10 of the 506 NPPES records with a practice address in Oconomowoc, and 2,814 family nurse practitioner records in Wisconsin.

All 2,814 in Wisconsin → Every provider in Oconomowoc → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Gail Buchberger, APNPOconomowoc, WI 530661023137866
  2. Angela Ellenberger, NPSummit, WI 530661285139188
  3. Mary Horner, NPOconomowoc, WI 530661962717371
  4. Amie Jabang, APNPOconomowoc, WI 530661760946628
  5. Lauren Olson, APRNOconomowoc, WI 530661477984334
  6. Sarah Sanford-Smith, MSN FNP-COconomowoc, WI 530661073197000
  7. Amy Schmidt, APNPSummit, WI 530661780317941
  8. Sarah Schwigel, MSN, APNP, FNP-COconomowoc, WI 530661841020500

Common questions

What is Katherine Marie Brockway, NP's NPI number?

Katherine Marie Brockway, NP's National Provider Identifier (NPI) is 1891500906, issued on Feb 7, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Marie Brockway, NP located?

The NPPES record lists a practice address at 1185 Corporate Center Dr, Oconomowoc, WI, 53066. Phone: (262) 928-8400. Providers update this record themselves, so call before visiting.

How can I verify Katherine Marie Brockway, NP's license?

NPPES lists Wisconsin license number 16470, as entered by the provider. Search the Wisconsin board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.