NPPES file of Aug 9, 2026

Christopher Patrick Williams, PH.D.

Clinical Neuropsychologist · Chicago, IL

Christopher Patrick Williams, PH.D. is a clinical neuropsychologist with a practice address in Chicago, Illinois, and NPI 1003505967, issued on May 4, 2023. Check the license (Illinois 071011013, 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
1003505967
Name
Christopher Patrick Williams
Credential
PH.D.
Primary taxonomy
Clinical Neuropsychologist 103G00000X
License numbers
071011013 IL
6301019196 MI
Self-reported in NPPES; status is on the state search
Practice location
2740 W Foster Ave Ste 113, Chicago, IL 60625
Phone
(847) 425-6400
Enumerated
May 4, 2023
Record last updated
Jul 27, 2026
Fax
(847) 425-6408
Medicare enrollment
Enrolled (PECOS I20231018001068); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 neuropsychologist records → All 248 in Illinois → Look up another NPI →

Also registered at 2740 W Foster Ave Ste 113

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

  1. Allison Domingo, LCSWClinical Social Worker1073174686
  2. Humna Fayyaz, MDAddiction Medicine (Preventive Medicine) Physician1447746466
  3. Jonathan Getz, M.D.Psychiatry Physician1386683969
  4. Najlah Iqbal, LSWSocial Worker1720963705
  5. Robert Marvin, M.D.Psychiatry Physician1215940424
  6. Audra Masterton, LCSWClinical Social Worker1881256154

Verify Christopher Patrick Williams 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 071011013    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.

Bills Medicare through one group practice

  1. Endeavor Health Medical GroupEvanston, IL

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

Christopher Patrick Williams among 248 clinical neuropsychologist records in Illinois

Christopher Patrick Williams, PH.D. is one of 248 clinical neuropsychologist records with a practice address in Illinois. 35% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 89% of them.

  • NPI issued2023 · 89% of these records are older, 9% newer
  • In a Medicare fileYes · 35% of these records are
  • In the CMS Doctors and Clinicians fileYes · 46% of these records are
  • Graduated2021 · median 2013 among the 115 with a school on file
  • Record last updated2026 · 44% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103G00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Clinical Neuropsychologist providers in Illinois

There are 248 clinical neuropsychologist records in Illinois.

All 248 in Illinois → Every provider in Chicago → Clinical Neuropsychologist nationwide →

The 8 clinical neuropsychologist records with the nearest ZIP codes

  1. David Meyerson, PH.D.Chicago, IL 606181245671841
  2. Anne Wiley, PH.D.Chicago, IL 606181619090719
  3. Claireivy Kumchy, PH.D. CLINICAL PSYCHChicago, IL 606141881616969
  4. Lisa Mash, PHDChicago, IL 606141467238600
  5. Kenneth Lefebvre, PHDChicago, IL 606131417088733
  6. Natalie Berger, PH.D.Chicago, IL 606121649830159
  7. Monica De Iorio, PHDChicago, IL 606121548908734
  8. Debra Fleischman, PH.D.Chicago, IL 606121407057060

Common questions

What is Christopher Patrick Williams, PH.D.'s NPI number?

Christopher Patrick Williams, PH.D.'s National Provider Identifier (NPI) is 1003505967, issued on May 4, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Christopher Patrick Williams, PH.D. located?

The NPPES record lists a practice address at 2740 W Foster Ave Ste 113, Chicago, IL, 60625. Phone: (847) 425-6400. Providers update this record themselves, so call before visiting.

How can I verify Christopher Patrick Williams, PH.D.'s license?

NPPES lists Illinois license number 071011013, 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.

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.