NPPES file of Aug 9, 2026

Iwona Danuta Kochanski, D.D.S.

General Practice Dentistry · Niles, IL

Iwona Danuta Kochanski, D.D.S. is a general practice dentistry with a practice address in Niles, Illinois, and NPI 1154601995, issued on Aug 24, 2011. Check the license (Illinois 091026294, as entered in NPPES) with the Illinois board that licenses this profession; 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
1154601995
Name
Iwona Danuta Kochanski
Credential
D.D.S.
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
091026294 IL
Self-reported in NPPES; status is on the state search
Practice location
7900 N Milwaukee Ave, Niles, IL 60714
Phone
(847) 581-9400
Enumerated
Aug 24, 2011
Record last updated
Aug 24, 2011 (not updated in 15 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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Also registered at 7900 N Milwaukee Ave

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

  1. Kayla Barango, MSN, APRN, FNP-CFamily Nurse Practitioner1912676123
  2. Ellen Brull, M.D.Family Medicine Physician1043396419
  3. Donna DziengielPharmacist1598114209
  4. Juan Engel, MDGastroenterology Physician1225122393
  5. Walter Falkowski, MDUrology Physician1124067335
  6. Debra Haley, PHDClinical Psychologist1306948690

Verify Iwona Danuta Kochanski 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 091026294
    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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82% fewer Medicare Part D claims than the average general practice dentistry in 2024

15 Medicare Part D claims, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Iwona Kochanski15
  2. Specialty average83

Most prescribed

  1. Amoxicillin11 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $14.83

1 payment: food and beverage; the largest payer was BioHorizons Implant Systems Inc. The 41,669 providers of this specialty with any payment received $597.01 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Iwona Kochanski$14.83
  2. Specialty average$597.01

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

Iwona Danuta Kochanski among 5,276 general practice dentistry records in Illinois

Iwona Danuta Kochanski, D.D.S. is one of 5,276 general practice dentistry records with a practice address in Illinois. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 68% of them.

  • NPI issued2011 · 68% of these records are older, 30% newer
  • In a Medicare fileYes · 64% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2011 · 75% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

31 general practice dentistry records list a practice address in Niles

They are 31 of the 589 NPPES records with a practice address in Niles, and 5,276 general practice dentistry records in Illinois.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Seung Eun Baik, DDSNiles, IL 607141033190913
  2. Spiro Barlas, DDSNiles, IL 607141043379373
  3. Raymond Bielinski, DDSNiles, IL 607141164571790
  4. Marina Borochin, DDSNiles, IL 607141649234683
  5. Ira Dolnick, D.D.S.Niles, IL 607141942264890
  6. Mark Holzer, DDS, RPHNiles, IL 607141396893764
  7. Richard Kruger, DDSNiles, IL 607141821154907
  8. Chris Kyros, DDSNiles, IL 607141275522153

Common questions

What is Iwona Danuta Kochanski, D.D.S.'s NPI number?

Iwona Danuta Kochanski, D.D.S.'s National Provider Identifier (NPI) is 1154601995, issued on Aug 24, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Iwona Danuta Kochanski, D.D.S. located?

The NPPES record lists a practice address at 7900 N Milwaukee Ave, Niles, IL, 60714. Phone: (847) 581-9400. Providers update this record themselves, so call before visiting.

How can I verify Iwona Danuta Kochanski, D.D.S.'s license?

NPPES lists Illinois license number 091026294, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Iwona Danuta Kochanski, D.D.S. prescribe under Medicare Part D?

In 2024, Iwona Danuta Kochanski, D.D.S. had 15 Medicare Part D claims; the average among general practice dentistry prescribers was 83. Part D covers Medicare prescriptions 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. 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.