NPPES file of Aug 9, 2026

Kate E. Timmermann

Clinical Social Worker · Granite City, IL

Kate E. Timmermann is a clinical social worker with a practice address in Granite City, Illinois, and NPI 1841838737, issued on Dec 11, 2019. Check the license (Illinois 149.019843, 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
1841838737
Name
Kate E. Timmermann
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
149.019843 IL
Self-reported in NPPES; status is on the state search
Practice location
50 Northgate Industrial Dr, Granite City, IL 62040
Phone
(309) 820-3744
Enumerated
Dec 11, 2019
Record last updated
Dec 11, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20200714000114); may accept Medicare assignment
Telehealth
Offers telehealth (CMS)
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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8 nearest clinical social worker records → All 13,637 in Illinois → Look up another NPI →

Also registered at 50 Northgate Industrial Dr

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

  1. Karen Barber, LCPCProfessional Counselor1942486485
  2. Brenda BarkerAddiction (Substance Use Disorder) Counselor1659702017
  3. Lainie BarronMental Health Counselor1245741818
  4. Ty BechelBehavior Technician1417490657
  5. Rachel Benrubi, LCPCMental Health Counselor1861895864
  6. Adriene Boyd, LSWSocial Worker1609567726

Verify Kate E. Timmermann 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 149.019843    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.

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Bills Medicare through one group practice

  1. Chestnut Health Systems IncGranite City, IL

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

Kate E. Timmermann among 13,637 clinical social worker records in Illinois

Kate E. Timmermann is one of 13,637 clinical social worker records with a practice address in Illinois. 14% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 59% of them.

  • NPI issued2019 · 59% of these records are older, 36% newer
  • In a Medicare fileYes · 14% of these records are
  • In the CMS Doctors and Clinicians fileYes · 21% of these records are
  • Graduated2013 · median 2010 among the 2,895 with a school on file
  • Record last updated2019 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

21 clinical social worker records list a practice address in Granite City

They are 21 of the 338 NPPES records with a practice address in Granite City, and 13,637 clinical social worker records in Illinois.

All 13,637 in Illinois → Every provider in Granite City → Clinical Social Worker nationwide →

The 8 clinical social worker records with the nearest ZIP codes

  1. Margaret Feinberg, LCSWGranite City, IL 620401548329808
  2. Sarah Gibson, LCSWGranite City, IL 620401982189650
  3. Linda Hylla, LCSWGranite City, IL 620401295855310
  4. Lisa Lawrence, LCSWGranite City, IL 620401720606973
  5. Amy LoweGranite City, IL 620401437579471
  6. Laura Marcum, LCSWGranite City, IL 620401881207884
  7. Amanda McCallister, LCSWGranite City, IL 620401669888145
  8. Sang Yun Nelson, LCSWGranite City, IL 620401821177056

Common questions

What is Kate E. Timmermann's NPI number?

Kate E. Timmermann's National Provider Identifier (NPI) is 1841838737, issued on Dec 11, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Kate E. Timmermann located?

The NPPES record lists a practice address at 50 Northgate Industrial Dr, Granite City, IL, 62040. Phone: (309) 820-3744. Providers update this record themselves, so call before visiting.

How can I verify Kate E. Timmermann's license?

NPPES lists Illinois license number 149.019843, 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.

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.