NPPES file of Aug 9, 2026

Kathy Seskiewicz, M.D.

Pediatrics Physician · Lake In The Hills, IL

Kathy Seskiewicz, M.D. is a pediatrics physician with a practice address in Lake In The Hills, Illinois, and NPI 1134186406, issued on Apr 28, 2006. Check the license (Illinois 036093941, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1134186406
Name
Kathy Seskiewicz
Credential
M.D.
Primary taxonomy
Pediatrics Physician 208000000X
License number
036093941 IL
Self-reported in NPPES; status is on the state search
Practice location
9401 Ackman RD, Lake In The Hills, IL 60156
Phone
(224) 569-4100
Enumerated
Apr 28, 2006
Record last updated
Jun 29, 2026
Fax
(224) 569-4101
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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Verify Kathy Seskiewicz 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 036093941
    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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Industry payments in 2024: $41.55

2 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 21,580 providers of this specialty with any payment received $842.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Kathy Seskiewicz$41.55
  2. Specialty average$842.05

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Kathy Seskiewicz among 3,176 pediatrics physician records in Illinois

Kathy Seskiewicz, M.D. is one of 3,176 pediatrics physician records with a practice address in Illinois. 32% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.

  • NPI issued2006 · 8% of these records are older, 59% newer
  • In a Medicare fileYes · 32% of these records are
  • In the CMS Doctors and Clinicians fileNo · 7% of these records are
  • Record last updated2026 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

3 pediatrics physician records list a practice address in Lake In The Hills

They are 3 of the 316 NPPES records with a practice address in Lake In The Hills, and 3,176 pediatrics physician records in Illinois.

The 8 pediatrics physician records with the nearest ZIP codes

  1. Erin O'Brien, M.D.Lake In The Hills, IL 601561437114394
  2. Jason Tjaden, MDLake In The Hills, IL 601561447215033
  3. Carolyn Berkes, M.D.Westchester, IL 601541316002603
  4. Carolyn Danziger, MDWestchester, IL 601541245395599
  5. Cindy Rubin, MDWestchester, IL 601541891723730
  6. Olga Ulyanova, M.D.Westchester, IL 601541588705982
  7. Sara Verghese, MDWestchester, IL 601541790841732
  8. Boraan Abdulkarim, MDMaywood, IL 601531700689379

Common questions

What is Kathy Seskiewicz, M.D.'s NPI number?

Kathy Seskiewicz, M.D.'s National Provider Identifier (NPI) is 1134186406, issued on Apr 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Kathy Seskiewicz, M.D. located?

The NPPES record lists a practice address at 9401 Ackman RD, Lake In The Hills, IL, 60156. Phone: (224) 569-4100. Providers update this record themselves, so call before visiting.

How can I verify Kathy Seskiewicz, M.D.'s license?

NPPES lists Illinois license number 036093941, 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.

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.