NPPES file of Aug 9, 2026

William Bielski, AU.D.

Audiologist · Mount Prospect, IL

William Bielski, AU.D. is an audiologist with a practice address in Mount Prospect, Illinois, and NPI 1952727364, issued on Mar 10, 2014. Check the license (Illinois 147001447, 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
1952727364
Name
William Bielski
Credential
AU.D.
Primary taxonomy
Audiologist 231H00000X
License number
147001447 IL
Self-reported in NPPES; status is on the state search
Practice location
411 E Business Center Dr, Mount Prospect, IL 60056
Phone
(888) 421-0843
Enumerated
Mar 10, 2014
Record last updated
Mar 10, 2014 (not updated in 12 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 William Bielski 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 147001447    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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Audiologist providers in Illinois

There are 868 audiologist records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 868 in Illinois → Every provider in Mount Prospect →

Other audiologist records in Illinois

  1. Elizabeth Abbs, AU.D.Palos Hills, IL1063184190
  2. Lois Adamiec, M.S.Elmhurst, IL1225290026
  3. Allie Adams, AU.D.Herrin, IL1740998988
  4. Michele AdamsChampaign, IL1972623627
  5. Emily AdelmanGurnee, IL1861246506
  6. Lori Ader-Steinhauser, M.S., CCC-AKankakee, IL1871829085
  7. Megan Adler, AU.D.Winfield, IL1043388556
  8. Mary Agulo, AU.D.Crystal Lake, IL1225581408
  9. Uzma Akhtar, AUDHinsdale, IL1295495687
  10. Sarah Al-Salim, AUDMcHenry, IL1134436835

Common questions

What is William Bielski, AU.D.'s NPI number?

William Bielski, AU.D.'s National Provider Identifier (NPI) is 1952727364, issued on Mar 10, 2014. An NPI identifies a provider in billing; it is not a license.

Where is William Bielski, AU.D. located?

The NPPES record lists a practice address at 411 E Business Center Dr, Mount Prospect, IL, 60056. Phone: (888) 421-0843. Providers update this record themselves, so call before visiting.

How can I verify William Bielski, AU.D.'s license?

NPPES lists Illinois license number 147001447, 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.