NPPES file of Aug 9, 2026

Madelyn Jane Althoff

Speech-Language Pathologist · Chatham, IL

Madelyn Jane Althoff is a speech-language pathologist with a practice address in Chatham, Illinois, and NPI 1659099513, issued on Aug 17, 2022. Check the license 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
1659099513
Name
Madelyn Jane Althoff
Primary taxonomy
Speech-Language Pathologist 235Z00000X
Practice location
1401 E Plummer Blvd, Chatham, IL 62629
Phone
(217) 483-6704
Enumerated
Aug 17, 2022
Record last updated
Aug 17, 2022
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 1401 E Plummer Blvd

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

  1. Tory Grafelman, MS, CCC-SLPSpeech-Language Pathologist1568051480
  2. Emily Postelmans, MS, CCC-SLPSpeech-Language Pathologist1073118808

Verify Madelyn Jane Althoff in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this professionCheck 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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20 speech-language pathologist records list a practice address in Chatham

They are 20 of the 111 NPPES records with a practice address in Chatham, and 10,224 speech-language pathologist records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other speech-language pathologist records in Illinois

  1. Samin Abbasi, M.S. CCC-SLPChicago, IL1578990503
  2. Elisabeth Abbatacola, MAChicago, IL1740413889
  3. Alexis AbbinantiChicago, IL1841154085
  4. Leraaen Abbott, MA CCC-SLPWilmette, IL1154153831
  5. Ala AbdeljaberWaukegan, IL1265043079
  6. Nada Abderrhaman, M.S.Palos Hills, IL1497152201
  7. Stephanie AberleShelbyville, IL1932529989
  8. Jenna Abi-MansourMt Prospect, IL1659049450
  9. Ann Abraham, MA/CCC/SLP-LLoves Park, IL1134495385
  10. Tintu Abraham, MSCJoliet, IL1003153925

Common questions

What is Madelyn Jane Althoff's NPI number?

Madelyn Jane Althoff's National Provider Identifier (NPI) is 1659099513, issued on Aug 17, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Madelyn Jane Althoff located?

The NPPES record lists a practice address at 1401 E Plummer Blvd, Chatham, IL, 62629. Phone: (217) 483-6704. Providers update this record themselves, so call before visiting.

How can I verify Madelyn Jane Althoff's license?

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.

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.