NPPES file of Aug 9, 2026

Kasey J. Chaszczewski, M.D.

Pediatric Cardiology Physician · Milwaukee, WI

Kasey J. Chaszczewski, M.D. is a pediatric cardiology physician with a practice address in Milwaukee, Wisconsin, and NPI 1215376868, issued on Jun 17, 2013. Check the license (Wisconsin 74942, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1215376868
Name
Kasey J. Chaszczewski
Credential
M.D.
Primary taxonomy
Pediatric Cardiology Physician 2080P0202X
License numbers
74942 WI
125-063768 IL
Self-reported in NPPES; status is on the state search
Practice location
9000 W Wisconsin Ave, Milwaukee, WI 53226
Phone
(414) 266-2380
Enumerated
Jun 17, 2013
Record last updated
Mar 11, 2024
Medicaid ID
1215376868 WI
Medicare enrollment
Enrolled (PECOS I20210721002997); accepts Medicare assignment
Medical or professional school
State University Of New York At Stony Brook, School Of Medicine, 2013
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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Also registered at 9000 W Wisconsin Ave

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

  1. Lynn Abad-Santos, APNPPediatric Nurse Practitioner1184675696
  2. Steven AbramowskiPediatric Nurse Practitioner1871118802
  3. Thomas Abshire, MDPediatric Hematology & Oncology Physician1730249681
  4. Elham Abushanab, M.D.Neurology with Special Qualifications in Child Neurology Physician1306392634
  5. Samuel Adams, M.D.Neurology with Special Qualifications in Child Neurology Physician1972947224
  6. Adeleye Afolayan, M.DNeonatal-Perinatal Medicine Physician1760649776

Verify Kasey J. Chaszczewski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 74942    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
Open 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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The practice group's MIPS final score for 2023 (Medicare payment program): 80.5 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score66.2
  2. Costout of 100 · 30%68.6
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Childrens Specialty Group IncMilwaukee, WI

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

Pediatric Cardiology Physician providers in Wisconsin

There are 72 pediatric cardiology physician records in Wisconsin.

All 72 in Wisconsin → Every provider in Milwaukee →

Other pediatric cardiology physician records in Wisconsin

  1. Osamah Aldoss, M.D.Milwaukee, WI1104043710
  2. Catherine Allen, M.D.Madison, WI1265673164
  3. Emily Backes, MDMadison, WI1740677194
  4. Heather Bartlett, MDMadison, WI1487649323
  5. Peter Bartz, M.D.Milwaukee, WI1497728794
  6. Daniel Beacher, M.D.Appleton, WI1942628466
  7. D Benson, MDMilwaukee, WI1710906185
  8. Joseph Block, MDMilwaukee, WI1316068364
  9. Jesse Boyett Anderson, MDMadison, WI1053818849
  10. Matthew Buelow, MDMilwaukee, WI1659513158

Common questions

What is Kasey J. Chaszczewski, M.D.'s NPI number?

Kasey J. Chaszczewski, M.D.'s National Provider Identifier (NPI) is 1215376868, issued on Jun 17, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Kasey J. Chaszczewski, M.D. located?

The NPPES record lists a practice address at 9000 W Wisconsin Ave, Milwaukee, WI, 53226. Phone: (414) 266-2380. Providers update this record themselves, so call before visiting.

How can I verify Kasey J. Chaszczewski, M.D.'s license?

NPPES lists Wisconsin license number 74942, as entered by the provider. 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.

What is Kasey J. Chaszczewski, M.D.'s MIPS final score?

The 2023 MIPS final score is 80.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.