NPPES file of Aug 9, 2026

Louis James Kroot, M.D.

Emergency Medicine Physician · Janesville, WI

Louis James Kroot, M.D. is an emergency medicine physician with a practice address in Janesville, Wisconsin, and NPI 1649239658, issued on Mar 20, 2006. Check the license on the Wisconsin Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1649239658
Name
Louis James Kroot
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
29386 KY
Self-reported in NPPES; status is on the state search
Practice location
1000 Mineral Point Ave, Janesville, WI 53548
Phone
(608) 756-6186
Enumerated
Mar 20, 2006
Record last updated
Oct 1, 2008 (not updated in 18 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest emergency medicine physician records → All 1,464 in Wisconsin → Look up another NPI →

Also registered at 1000 Mineral Point Ave

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

  1. Marwan Abdulsattar, MDAnesthesiology Physician1265790695
  2. Kathleen Agard, MDAnesthesiology Physician1558503235
  3. Imdad Ahmed, MDCardiovascular Disease Physician1053536219
  4. Muhammad Alkhan, MDInternal Medicine Physician1114950813
  5. Rachel Allen, MDEmergency Medicine Physician1184823999
  6. Giuseppe Altamore, DOEmergency Medicine Physician1477828564

Verify Louis James Kroot in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining BoardCheck 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
Open the Wisconsin license search

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Louis James Kroot among 1,464 emergency medicine physician records in Wisconsin

Louis James Kroot, M.D. is one of 1,464 emergency medicine physician records with a practice address in Wisconsin. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 8% of them.

  • NPI issued2006 · 8% of these records are older, 58% newer
  • In a Medicare fileNo · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 58% of these records are
  • Record last updated2008 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

40 emergency medicine physician records list a practice address in Janesville

They are 40 of the 1,538 NPPES records with a practice address in Janesville, and 1,464 emergency medicine physician records in Wisconsin. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,464 in Wisconsin → Every provider in Janesville → Emergency Medicine Physician nationwide →

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Rachel Allen, MDJanesville, WI 535481184823999
  2. Yone Amuka, MDJanesville, WI 535481790929693
  3. Kevin Dardis, DOJanesville, WI 535481609894526
  4. Martin FedkoJanesville, WI 535481134351430
  5. Franz Keilhauer, MDJanesville, WI 535481295817047
  6. Joseph Kovacic, DOJanesville, WI 535481144419896
  7. Sean Marquis, MDJanesville, WI 535481053554089
  8. Joseph Mastromarino, MDJanesville, WI 535481568471985

Common questions

What is Louis James Kroot, M.D.'s NPI number?

Louis James Kroot, M.D.'s National Provider Identifier (NPI) is 1649239658, issued on Mar 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Louis James Kroot, M.D. located?

The NPPES record lists a practice address at 1000 Mineral Point Ave, Janesville, WI, 53548. Phone: (608) 756-6186. Providers update this record themselves, so call before visiting.

How can I verify Louis James Kroot, M.D.'s license?

Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.