NPPES file of Aug 9, 2026

Leslie Lynn Gum, LCSW

Clinical Social Worker · Oak Brook, IL

Leslie Lynn Gum, LCSW is a clinical social worker with a practice address in Oak Brook, Illinois, and NPI 1437239027, issued on Oct 17, 2006. Check the license (Illinois 149004519, 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, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1437239027
Name
Leslie Lynn Gum
Credential
LCSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
149004519 IL
Self-reported in NPPES; status is on the state search
Practice location
2625 Butterfield RD Ste 138S, Oak Brook, IL 60523
Phone
(630) 362-4445
Enumerated
Oct 17, 2006
Record last updated
May 13, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(630) 528-3805
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 2625 Butterfield RD Ste 138S

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

  1. David Allen, LCSWSocial Worker1477017713
  2. Elizabeth Donegan, PSYDClinical Psychologist1467955971
  3. Zuica Donev, LPCProfessional Counselor1568177673
  4. Denise Gallagher, NURSE PRACTITIONERPsychiatric/Mental Health Nurse Practitioner1891072443
  5. Kathleen Griffin, LCPCMental Health Counselor1588158000
  6. Karin Lagacy, PSY.DPsychologist1639443641

Verify Leslie Lynn Gum 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 149004519
    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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Leslie Lynn Gum among 13,637 clinical social worker records in Illinois

Leslie Lynn Gum, LCSW 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 not. Its NPI, issued in 2006, is newer than under 1% of them.

  • NPI issued2006 · under 1% of these records are older, 90% newer
  • In a Medicare fileNo · 14% of these records are
  • In the CMS Doctors and Clinicians fileNo · 21% of these records are
  • Record last updated2015 · 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).

94 clinical social worker records list a practice address in Oak Brook

They are 94 of the 950 NPPES records with a practice address in Oak Brook, and 13,637 clinical social worker records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 clinical social worker records with the nearest ZIP codes

  1. Mary Anstiss, LCPCOak Brook, IL 605231508954868
  2. Martha Cook, M.S.W.Oak Brook, IL 605231457402810
  3. Deborah Fullilove, LCSWOak Brook, IL 605231306934518
  4. Tonya Gilkerson-Sobol, LCSWOak Brook, IL 605231447270673
  5. Jennifer Hassler, LCSWOak Brook, IL 605231487742557
  6. Ron Jordan, LCSWOak Brook, IL 605231689762767
  7. Hans Lonnroth, LCSWOak Brook, IL 605231518966365
  8. Hamida Naficy, MSW LCSWOak Brook, IL 605231467524009

Common questions

What is Leslie Lynn Gum, LCSW's NPI number?

Leslie Lynn Gum, LCSW's National Provider Identifier (NPI) is 1437239027, issued on Oct 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Leslie Lynn Gum, LCSW located?

The NPPES record lists a practice address at 2625 Butterfield RD Ste 138S, Oak Brook, IL, 60523. Phone: (630) 362-4445. Providers update this record themselves, so call before visiting.

How can I verify Leslie Lynn Gum, LCSW's license?

NPPES lists Illinois license number 149004519, 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. 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.