NPPES file of Aug 9, 2026

Mary Schlegel, AU.D.

Audiologist · Naperville, IL

Mary Schlegel, AU.D. is an audiologist with a practice address in Naperville, Illinois, and NPI 1417989336, issued on Jul 7, 2006. Check the license (Illinois 147000816, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1417989336
Name
Mary Schlegel
Credential
AU.D.
Primary taxonomy
Audiologist 231H00000X
License number
147000816 IL
Self-reported in NPPES; status is on the state search
Practice location
808 Rickert Dr Ste 200, Naperville, IL 60540
Phone
(630) 364-7410
Enumerated
Jul 7, 2006
Record last updated
Jul 25, 2023
Fax
(630) 718-2655
Medicare enrollment
Enrolled (PECOS I20100623000247); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 808 Rickert Dr Ste 200

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

  1. Jessica Duerinck, AUDAudiologist1689356578
  2. Danny Jandali, M.D.Otolaryngology Physician1063827590
  3. Danial Jilani, MD, MPHVascular & Interventional Radiology Physician1902224652

Verify Mary Schlegel 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 147000816
    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

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Bills Medicare through one group practice

  1. Dupage Medical Group LtdNaperville, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Audiologist providers in Illinois

There are 868 audiologist records in Illinois.

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 Mary Schlegel, AU.D.'s NPI number?

Mary Schlegel, AU.D.'s National Provider Identifier (NPI) is 1417989336, issued on Jul 7, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mary Schlegel, AU.D. located?

The NPPES record lists a practice address at 808 Rickert Dr Ste 200, Naperville, IL, 60540. Phone: (630) 364-7410. Providers update this record themselves, so call before visiting.

How can I verify Mary Schlegel, AU.D.'s license?

NPPES lists Illinois license number 147000816, 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. 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.