NPPES file of Aug 9, 2026

Timothy J. O'Brien, PSYD

Clinical Psychologist · Chicago, IL

Timothy J. O'Brien, PSYD is a clinical psychologist with a practice address in Chicago, Illinois, and NPI 1801449681, issued on Jul 19, 2019. Check the license (Illinois 071.010066, 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
1801449681
Name
Timothy J. O'Brien
Credential
PSYD
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
071.010066 IL
Self-reported in NPPES; status is on the state search
Practice location
2265 W 113TH PL, Chicago, IL 60643
Phone
(773) 683-3500
Enumerated
Jul 19, 2019
Record last updated
Jan 8, 2025
Medicare enrollment
Enrolled (PECOS I20190904001963); may accept 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.
Download card Updates feed

8 nearest clinical psychologist records → All 3,947 in Illinois → Look up another NPI →

Also registered at 2265 W 113TH PL

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

  1. Tara Hinds, LCPCProfessional Counselor1962869172

Verify Timothy J. O'Brien 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 071.010066    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Timothy J. O'Brien among 3,947 clinical psychologist records in Illinois

Timothy J. O'Brien, PSYD is one of 3,947 clinical psychologist records with a practice address in Illinois. 16% 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 2019, is newer than 81% of them.

  • NPI issued2019 · 81% of these records are older, 16% newer
  • In a Medicare fileNo · 16% of these records are
  • In the CMS Doctors and Clinicians fileYes · 27% of these records are
  • Graduated2013 · median 2004 among the 1,081 with a school on file
  • Record last updated2025 · 68% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,478 clinical psychologist records list a practice address in Chicago

They are 1,478 of the 63,379 NPPES records with a practice address in Chicago, and 3,947 clinical psychologist records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 3,947 in Illinois → Every provider in Chicago → Clinical Psychologist nationwide →

The 8 clinical psychologist records with the nearest ZIP codes

  1. Deja Alexander, PSYDChicago, IL 606431972308732
  2. Aaron Chatman, PSY.DChicago, IL 606431831799436
  3. Lorraine Daniel, PSY.D.Chicago, IL 606431720303548
  4. James Davenport, PSYDChicago, IL 606431881683969
  5. Paul Davenport, PSY.D.Chicago, IL 606431164388153
  6. Latreece Dickerson, PSY.D.Chicago, IL 606431053409722
  7. Richara Jennings, PSYDChicago, IL 606431669545208
  8. Eleanor Juarez, PSY.D.Chicago, IL 606431073267290

Common questions

What is Timothy J. O'Brien, PSYD's NPI number?

Timothy J. O'Brien, PSYD's National Provider Identifier (NPI) is 1801449681, issued on Jul 19, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Timothy J. O'Brien, PSYD located?

The NPPES record lists a practice address at 2265 W 113TH PL, Chicago, IL, 60643. Phone: (773) 683-3500. Providers update this record themselves, so call before visiting.

How can I verify Timothy J. O'Brien, PSYD's license?

NPPES lists Illinois license number 071.010066, 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.

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.