Registry data as of Aug 27, 2026

Gregory Bailey, PH.D.

Clinical Psychologist · Chicago, IL

Gregory Bailey, PH.D. is a clinical psychologist with a practice address in Chicago, Illinois, and NPI 1821251935, issued on Jul 8, 2008. Check the license (Illinois 071-006485, 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, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1821251935
Name
Gregory Bailey
Credential
PH.D.
Primary taxonomy
Clinical Psychologist 103TC0700X
License numbers
071-006485 IL
5920 OH
Self-reported in NPPES; status is on the state search
Practice location
180 N Michigan Ave, Chicago, IL 60601
Phone
(312) 423-5651
Enumerated
Jul 8, 2008
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 180 N Michigan Ave

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

  1. Jean Aschkenasy, PH.D.Specialist1801006549
  2. Darakhshinda BariProfessional Counselor1306213285
  3. Silvija Barisic, LPCProfessional Counselor1457791667
  4. Constance Bauer, JD, LCSW, LLCClinical Social Worker1538353867
  5. William Bradbury, MDPsychiatry Physician1992911622
  6. Lynn Brewer, M.A.Professional Counselor1457628257

Verify Gregory Bailey 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 071-006485
    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.

1,333 clinical psychologist records list a Chicago practice address

They are 1,333 of the 63,379 NPPES records with a Chicago practice address, and 3,655 clinical psychologist records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other clinical psychologist records in Illinois

  1. Kathy Abbott, PSYDEvergreen Park, IL1922188929
  2. Lamese AbdelhamidOrland Park, IL1992671440
  3. James Abec, PH.D.Lombard, IL1770791907
  4. Allison Abel, PSY.DHines, IL1003638040
  5. William Aber, PH.D.Chicago, IL1598777187
  6. Leslie Abrams, PH.D.Deerfield, IL1861558348
  7. Dayna Abramson, PSYDRomeoville, IL1891523502
  8. Huda Abuasi, PSY.D.Orland Park, IL1841312808
  9. Melissa Ackerman, PSYDDes Plaines, IL1437198132
  10. Na'Ama Adam Wasserman, PSY.D.Chicago, IL1790325744

Common questions

What is Gregory Bailey, PH.D.'s NPI number?

Gregory Bailey, PH.D.'s National Provider Identifier (NPI) is 1821251935, issued on Jul 8, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Bailey, PH.D. located?

The NPPES record lists a practice address at 180 N Michigan Ave, Chicago, IL, 60601. Phone: (312) 423-5651. Providers update this record themselves, so call before visiting.

How can I verify Gregory Bailey, PH.D.'s license?

NPPES lists Illinois license number 071-006485, 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. 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.