NPPES file of Aug 9, 2026

Marques Cosby, LCSW

Clinical Social Worker · Oak Park, IL

Marques Cosby, LCSW is a clinical social worker with a practice address in Oak Park, Illinois, and NPI 1619625795, issued on Mar 16, 2022. Check the license (Illinois 149.027563, 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
1619625795
Name
Marques Cosby
Credential
LCSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
149.027563 IL
Self-reported in NPPES; status is on the state search
Practice location
18 Chicago Ave, Oak Park, IL 60302
Phone
(773) 253-3933
Enumerated
Mar 16, 2022
Record last updated
Jun 20, 2025
Medicare enrollment
Enrolled (PECOS I20250212000333); accepts Medicare assignment
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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Also registered at 18 Chicago Ave

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

  1. Amba Ayloo, M.D.Family Medicine Physician1700206331
  2. Ana Paula Carvalho Do Amaral, M.D.Family Medicine Physician1912430208
  3. Shuying Chang, NPFamily Nurse Practitioner1376109918
  4. Adrianna Chauncey, M.D.Internal Medicine Physician1578852562
  5. Ashley Cohen, MSN, APRN, FNP-CFamily Nurse Practitioner1689269698
  6. Marcos Erazo, MSWClinical Social Worker1033894530

Verify Marques Cosby 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 149.027563
    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. Oak Street Health Physicians Group PCOak Park, IL

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

281 clinical social worker records list a practice address in Oak Park

They are 281 of the 2,307 NPPES records with a practice address in Oak Park, and 13,637 clinical social worker records in Illinois.

Other clinical social worker records in Illinois

  1. Leah A' Hearn, LCSWSavoy, IL1124790829
  2. Bruce AaronChicago, IL1013069087
  3. Melissa Aaron, LCSWWest Frankfort, IL1437505526
  4. Marcus Abate, MSWAurora, IL1679904767
  5. Nadia Abbas, LCSWChicago, IL1578176400
  6. Trisha Abbey, LCSWPalatine, IL1477970176
  7. Mary Abbott, LCSWElgin, IL1073787685
  8. Susan Abbott, LCSWOak Park, IL1235456930
  9. Ghada AbdallaChampaign, IL1235015553
  10. Samella Abdullah, PH.D.Chicago, IL1356404263

Common questions

What is Marques Cosby, LCSW's NPI number?

Marques Cosby, LCSW's National Provider Identifier (NPI) is 1619625795, issued on Mar 16, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Marques Cosby, LCSW located?

The NPPES record lists a practice address at 18 Chicago Ave, Oak Park, IL, 60302. Phone: (773) 253-3933. Providers update this record themselves, so call before visiting.

How can I verify Marques Cosby, LCSW's license?

NPPES lists Illinois license number 149.027563, 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.

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.