NPPES file of Aug 9, 2026

Timothy Hull, PHD

Clinical Psychologist · Barrington, IL

Timothy Hull, PHD is a clinical psychologist with a practice address in Barrington, Illinois, and NPI 1235292640, issued on Dec 18, 2006. Check the license (Illinois 07103979, 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
1235292640
Name
Timothy Hull
Credential
PHD
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
07103979 IL
Self-reported in NPPES; status is on the state search
Practice location
777 Lake Zurich RD Ste 110F, Barrington, IL 60010
Phone
(847) 404-7438
Enumerated
Dec 18, 2006
Record last updated
Mar 5, 2026
Medicare enrollment
Enrolled (PECOS I20101006000877); 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 777 Lake Zurich RD Ste 110F

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

  1. Tammy HevrdejsClinical Psychologist1790634780

Verify Timothy Hull 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 07103979
    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. Psychone PCBarrington, IL

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

Timothy Hull among 3,947 clinical psychologist records in Illinois

Timothy Hull, PHD 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. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 76% newer
  • In a Medicare fileYes · 16% of these records are
  • In the CMS Doctors and Clinicians fileYes · 27% of these records are
  • Graduated1986 · median 2004 among the 1,081 with a school on file
  • Record last updated2026 · 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).

24 clinical psychologist records list a practice address in Barrington

They are 24 of the 756 NPPES records with a practice address in Barrington, and 3,947 clinical psychologist records in Illinois.

The 8 clinical psychologist records with the nearest ZIP codes

  1. Cheryl Borst, PSYDBarrington, IL 600101306910633
  2. Grant Boyer, PSYDBarrington, IL 600101861560088
  3. Joel Carnazzo, PSY.D.Barrington, IL 600101013020452
  4. Pamela Cotton, PH.D.Barrington, IL 600101558576025
  5. Edward Debellis, PSY.D.Barrington, IL 600101164534897
  6. Daniel Dewitt, PHDBarrington, IL 600101689737009
  7. Patricia Dewitt, PHDBarrington, IL 600101497818892
  8. Ronald Ercoli, PSY.D.Barrington, IL 600101700935210

Common questions

What is Timothy Hull, PHD's NPI number?

Timothy Hull, PHD's National Provider Identifier (NPI) is 1235292640, issued on Dec 18, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Timothy Hull, PHD located?

The NPPES record lists a practice address at 777 Lake Zurich RD Ste 110F, Barrington, IL, 60010. Phone: (847) 404-7438. Providers update this record themselves, so call before visiting.

How can I verify Timothy Hull, PHD's license?

NPPES lists Illinois license number 07103979, 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.