NPPES file of Aug 9, 2026

Karyn M. Olszak

Behavior Analyst · Lindenhurst, IL

Karyn M. Olszak is a behavior analyst with a practice address in Lindenhurst, Illinois, and NPI 1720574148, issued on Jul 9, 2018. Check the license (Illinois 1-18-31341, 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
1720574148
Name
Karyn M. Olszak
Primary taxonomy
Behavior Analyst 103K00000X
License number
1-18-31341 IL
Self-reported in NPPES; status is on the state search
Practice location
511 Whispering Pines RD, Lindenhurst, IL 60046
Phone
(224) 305-1203
Enumerated
Jul 9, 2018
Record last updated
Jul 7, 2020 (not updated in 6 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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Verify Karyn M. Olszak 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 1-18-31341    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
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4 behavior analyst records list a practice address in Lindenhurst

They are 4 of the 147 NPPES records with a practice address in Lindenhurst, and 3,082 behavior analyst records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 4 in Lindenhurst → All 3,082 in Illinois → Every provider in Lindenhurst →

Other behavior analyst records in Illinois

  1. Genesis Luke AbadChicago, IL1588425060
  2. Yasmin Abdel-JaberBurr Ridge, IL1972163624
  3. Ahmad Abdul-RahimChicago, IL1114814902
  4. Teresa Abels, MHPJoliet, IL1003280553
  5. Allison AbendrothElmhurst, IL1447866363
  6. Carlotta Abogado, BCBAOrland Park, IL1740017243
  7. Maram Abomaray, BCBANaperville, IL1447903158
  8. Indira AbrahamChicago, IL1255286472
  9. Alecia AbramChicago, IL1336655836
  10. Chelsea Aburroman, MS, BCBANaperville, IL1235744228

Common questions

What is Karyn M. Olszak's NPI number?

Karyn M. Olszak's National Provider Identifier (NPI) is 1720574148, issued on Jul 9, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Karyn M. Olszak located?

The NPPES record lists a practice address at 511 Whispering Pines RD, Lindenhurst, IL, 60046. Phone: (224) 305-1203. Providers update this record themselves, so call before visiting.

How can I verify Karyn M. Olszak's license?

NPPES lists Illinois license number 1-18-31341, 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.

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.