Registry data as of Aug 27, 2026

Katherine Johnson, LCSW

Clinical Social Worker · Addison, IL

Katherine Johnson, LCSW is a clinical social worker with a practice address in Addison, Illinois, and NPI 1750939476, issued on Aug 27, 2019. Check the license (Illinois 149021455, 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, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1750939476
Name
Katherine Johnson
Credential
LCSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
149021455 IL
Self-reported in NPPES; status is on the state search
Practice location
228 E Lake St, Addison, IL 60101
Phone
(630) 835-1430
Enumerated
Aug 27, 2019
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 228 E Lake St

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

  1. Valerie Battisti, PA-CPhysician Assistant1730692351
  2. Grace Benstein, PA-CPhysician Assistant1629886098
  3. Crystal Daniels, MDPediatrics Physician1962400556
  4. B Das, PHDClinical Psychologist1184059404
  5. Julia Hall, LPCMental Health Counselor1356109110
  6. Mohammad HamidClinical Psychologist1679908743

Verify Katherine Johnson 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 149021455
    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.

One hospital or facility affiliation

  1. Garden Health Group LLCRiver Forest, IL

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

16 clinical social worker records list a Addison practice address

They are 16 of the 442 NPPES records with a Addison practice address, and 12,605 clinical social worker records in Illinois.

Other clinical social worker records in Illinois

  1. Leah A' Hearn, LCSWSavoy, IL1124790829
  2. Bruce AaronChicago, IL1013069087
  3. Marcus Abate, MSWAurora, IL1679904767
  4. Nadia Abbas, LCSWChicago, IL1578176400
  5. Trisha Abbey, LCSWPalatine, IL1477970176
  6. Mary Abbott, LCSWElgin, IL1073787685
  7. Susan Abbott, LCSWOak Park, IL1235456930
  8. Ghada AbdallaChampaign, IL1235015553
  9. Amer Abdulghafoor, MSW, MS, PA-CChicago, IL1619401718
  10. Samella Abdullah, PH.D.Chicago, IL1356404263

Common questions

What is Katherine Johnson, LCSW's NPI number?

Katherine Johnson, LCSW's National Provider Identifier (NPI) is 1750939476, issued on Aug 27, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Johnson, LCSW located?

The NPPES record lists a practice address at 228 E Lake St, Addison, IL, 60101. Phone: (630) 835-1430. Providers update this record themselves, so call before visiting.

How can I verify Katherine Johnson, LCSW's license?

NPPES lists Illinois license number 149021455, 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. Medicare files from data.cms.gov. 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.