NPPES file of Aug 9, 2026

Luis R. Diaz, MA, LCPC

Professional Counselor · Chicago, IL

Luis R. Diaz, MA, LCPC is a professional counselor with a practice address in Chicago, Illinois, and NPI 1386040939, issued on Nov 10, 2014. Check the license (Illinois 178.009609, 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
1386040939
Name
Luis R. Diaz
Credential
MA, LCPC
Primary taxonomy
Professional Counselor 101YP2500X
License number
178.009609 IL
Self-reported in NPPES; status is on the state search
Practice location
303 E Wacker Dr Ste 1130, Chicago, IL 60601
Phone
(312) 600-3935
Enumerated
Nov 10, 2014
Record last updated
Jul 9, 2024
Medicare enrollment
Enrolled (PECOS I20241001001152); 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 303 E Wacker Dr Ste 1130

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

  1. Rebekah ArmstrongProfessional Counselor1689543613
  2. Hali CookMental Health Counselor1417783853
  3. Natalie Dille, PSYDClinical Psychologist1972125615
  4. Aixa Dones, MAProfessional Counselor1043949654
  5. Ryan Dump, PSYDClinical Psychologist1164779476
  6. Ruti Greenfield, MAStudent in an Organized Health Care Education/Training Program1033099445

Verify Luis R. Diaz 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 178.009609
    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. Resilience Psychological Services PCChicago, IL

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

2,405 professional counselor records list a practice address in Chicago

They are 2,405 of the 63,379 NPPES records with a practice address in Chicago, and 9,508 professional counselor records in Illinois.

Other professional counselor records in Illinois

  1. Sheldon Aaron, LPCChampaign, IL1437635752
  2. John Abad, LCPCNaperville, IL1891373932
  3. Rosa AbarcaChicago, IL1043406028
  4. Ashley Abate, MA, LCPCFreeport, IL1275787871
  5. Sarah Abbas, MA, LCPC, CCTPNaperville, IL1588488423
  6. Sabrina AbbateHinsdale, IL1588519482
  7. Leon Abbey, LCPCChicago, IL1902675341
  8. Maria Abbott Miller, MA, LCPCPalos Hills, IL1316231491
  9. Gillie Abdiraxman-Issa, LPC-INTERNWestmont, IL1669352951
  10. Jahaan Abdullah, LPCSycamore, IL1639628654

Common questions

What is Luis R. Diaz, MA, LCPC's NPI number?

Luis R. Diaz, MA, LCPC's National Provider Identifier (NPI) is 1386040939, issued on Nov 10, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Luis R. Diaz, MA, LCPC located?

The NPPES record lists a practice address at 303 E Wacker Dr Ste 1130, Chicago, IL, 60601. Phone: (312) 600-3935. Providers update this record themselves, so call before visiting.

How can I verify Luis R. Diaz, MA, LCPC's license?

NPPES lists Illinois license number 178.009609, 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.