Registry data as of Aug 27, 2026

Kathryn Gass, M.S., CCC-SLP

Speech-Language Pathologist · Mascoutah, IL

Kathryn Gass, M.S., CCC-SLP is a speech-language pathologist with a practice address in Mascoutah, Illinois, and NPI 1821599366, issued on Feb 21, 2018. Check the license (Illinois 146004495, 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
1821599366
Name
Kathryn Gass
Credential
M.S., CCC-SLP
Primary taxonomy
Speech-Language Pathologist 235Z00000X
License number
146004495 IL
Self-reported in NPPES; status is on the state search
Practice location
533 N 6TH St, Mascoutah, IL 62258
Phone
(618) 566-2152
Enumerated
Feb 21, 2018
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 533 N 6TH St

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

  1. Sarah Laskowski, CF-SLPSpeech-Language Pathologist1184503856

Verify Kathryn Gass 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 146004495
    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.

6 speech-language pathologist records list a Mascoutah practice address

They are 6 of the 100 NPPES records with a Mascoutah practice address, and 10,146 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 Kathryn Gass, M.S., CCC-SLP's NPI number?

Kathryn Gass, M.S., CCC-SLP's National Provider Identifier (NPI) is 1821599366, issued on Feb 21, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Kathryn Gass, M.S., CCC-SLP located?

The NPPES record lists a practice address at 533 N 6TH St, Mascoutah, IL, 62258. Phone: (618) 566-2152. Providers update this record themselves, so call before visiting.

How can I verify Kathryn Gass, M.S., CCC-SLP's license?

NPPES lists Illinois license number 146004495, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.