NPPES file of Aug 9, 2026

Marzena Karwowski

Chiropractor · Chicago, IL

Marzena Karwowski is a chiropractor with a practice address in Chicago, Illinois, and NPI 1801284708, issued on Dec 30, 2014. Check the license (Illinois 038012742, as entered in NPPES) with the Illinois board that licenses this profession; 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
1801284708
Name
Marzena Karwowski
Primary taxonomy
Chiropractor 111N00000X
License number
038012742 IL
Self-reported in NPPES; status is on the state search
Practice location
1635 N Ashland Ave, Chicago, IL 60622
Phone
(773) 360-8108
Enumerated
Dec 30, 2014
Record last updated
Mar 12, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20150204002028); 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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Verify Marzena Karwowski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 038012742
    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 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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Marzena Karwowski among 4,524 chiropractor records in Illinois

Marzena Karwowski is one of 4,524 chiropractor records with a practice address in Illinois. 17% 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 2014, is newer than 74% of them.

  • NPI issued2014 · 74% of these records are older, 24% newer
  • In a Medicare fileNo · 17% of these records are
  • In the CMS Doctors and Clinicians fileYes · 42% of these records are
  • Graduated2015 · median 2004 among the 1,912 with a school on file
  • Record last updated2019 · 77% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 111N00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Chiropractor providers in Illinois

There are 4,524 chiropractor records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 chiropractor records with the nearest ZIP codes

  1. Kathleen Aleman, D.C.Chicago, IL 606221952766057
  2. Sean Bushnell, D.C.Chicago, IL 606221184754491
  3. Alicia Cohler, DCChicago, IL 606221558440347
  4. Otylia Hoberland, D.C.Chicago, IL 606221356584478
  5. Dae Hyung Kim, D.C.Chicago, IL 606221609251768
  6. Paul Mazzorana, D.C.Chicago, IL 606221831280460
  7. El Sayed Ouda, D CChicago, IL 606221669645735
  8. Michael Pontarelli, D.C.Chicago, IL 606221982770681

Common questions

What is Marzena Karwowski's NPI number?

Marzena Karwowski's National Provider Identifier (NPI) is 1801284708, issued on Dec 30, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Marzena Karwowski located?

The NPPES record lists a practice address at 1635 N Ashland Ave, Chicago, IL, 60622. Phone: (773) 360-8108. Providers update this record themselves, so call before visiting.

How can I verify Marzena Karwowski's license?

NPPES lists Illinois license number 038012742, as entered by the provider. Search the Illinois 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. An NPI identifies who bills; it is not a license.

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.