NPPES file of Aug 9, 2026

Karl Michael Napekoski, M.D.

Anatomic Pathology & Clinical Pathology Physician · Downers Grove, IL

Karl Michael Napekoski, M.D. is an anatomic pathology & clinical pathology physician with a practice address in Downers Grove, Illinois, and NPI 1235372301, issued on Apr 19, 2009. Check the license (Illinois 036.134795, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; 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
1235372301
Name
Karl Michael Napekoski
Credential
M.D.
Primary taxonomy
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
License number
036.134795 IL
Self-reported in NPPES; status is on the state search
Practice location
3815 Highland Ave, Downers Grove, IL 60515
Phone
(630) 275-1027
Enumerated
Apr 19, 2009
Record last updated
Apr 23, 2026
Medicare enrollment
Enrolled (PECOS I20140613001140); 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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Also registered at 3815 Highland Ave

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

  1. Sadiqa Abbas, M.D.Interventional Pain Medicine Physician1528010634
  2. Nicole Ahrens, CRNACertified Registered Nurse Anesthetist1578154340
  3. Aristides Alexander, M.D.Emergency Medicine Physician1881009082
  4. Yorleni Ambrosio, RN, CNSNeonatal Intensive Care Registered Nurse1720465065
  5. Manisa Baker, APNAcute Care Clinical Nurse Specialist1023479508
  6. Michelle BankheadSurgical Assistant1568921039

Verify Karl Michael Napekoski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036.134795    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 Illinois 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 7 group practices

  1. Bielinski Dermatology Group LLCOrland Park, IL
  2. Dermatology Associates LtdTinley Park, IL
  3. Dermatology Associates OF Lagrange SCLa Grange Highlands, IL
  4. Dolehide Dermatology, S.C.New Lenox, IL
  5. Midwest Diagnostic Pathology, S.C.Downers Grove, IL
  6. Sharon L. Horton, MD, PCBatavia, IL
  7. Suleman J. Bangash D.o.s.c.Elgin, IL

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

Anatomic Pathology & Clinical Pathology Physician providers in Illinois

There are 789 anatomic pathology & clinical pathology physician records in Illinois.

All 789 in Illinois → Every provider in Downers Grove →

Other anatomic pathology & clinical pathology physician records in Illinois

  1. Amer Abboud, MDBerwyn, IL1154348696
  2. Elham Abboud, MDChicago, IL1164409447
  3. Shahad Abdulameer, M.D.Maywood, IL1174905814
  4. John Abran, MDChicago Heights, IL1942293832
  5. Schuharazad AbroMaywood, IL1376078816
  6. Julia AdamsPeoria, IL1780819037
  7. Moses Adeyanju, M.D.Carbondale, IL1306820121
  8. Brian Adley, MDChicago, IL1932151966
  9. Ven Aduana, M.D.Geneva, IL1699757369
  10. Amar AgadiElgin, IL1407015415

Common questions

What is Karl Michael Napekoski, M.D.'s NPI number?

Karl Michael Napekoski, M.D.'s National Provider Identifier (NPI) is 1235372301, issued on Apr 19, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Karl Michael Napekoski, M.D. located?

The NPPES record lists a practice address at 3815 Highland Ave, Downers Grove, IL, 60515. Phone: (630) 275-1027. Providers update this record themselves, so call before visiting.

How can I verify Karl Michael Napekoski, M.D.'s license?

NPPES lists Illinois license number 036.134795, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. 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. 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.