Registry data as of Aug 27, 2026

Jennifer Bajzek

Behavior Analyst · Warrenville, IL

Jennifer Bajzek is a behavior analyst with a practice address in Warrenville, Illinois, and NPI 1578398608, issued on Sep 6, 2024. Check the license (Illinois 1-24-75520, 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, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1578398608
Name
Jennifer Bajzek
Primary taxonomy
Behavior Analyst 103K00000X
License number
1-24-75520 IL
Self-reported in NPPES; status is on the state search
Practice location
3S721 West Ave Ste 400, Warrenville, IL 60555
Phone
(630) 538-7434
Enumerated
Sep 6, 2024
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 3S721 West Ave Ste 400

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

  1. Brenda Boehm, BCBABehavior Analyst1609349471
  2. Anja Kremer, BCBABehavior Analyst1184206997

Verify Jennifer Bajzek 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 1-24-75520
    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.

9 behavior analyst records list a practice address in Warrenville

They are 9 of the 517 NPPES records with a practice address in Warrenville, and 3,082 behavior analyst records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

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 Jennifer Bajzek's NPI number?

Jennifer Bajzek's National Provider Identifier (NPI) is 1578398608, issued on Sep 6, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Jennifer Bajzek located?

The NPPES record lists a practice address at 3S721 West Ave Ste 400, Warrenville, IL, 60555. Phone: (630) 538-7434. Providers update this record themselves, so call before visiting.

How can I verify Jennifer Bajzek's license?

NPPES lists Illinois license number 1-24-75520, 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), loaded Aug 27, 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) 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 27, 2026.