NPPES file of Aug 9, 2026

John Koh, PSY.D

Clinical Psychologist · Evanston, IL

John Koh, PSY.D is a clinical psychologist with a practice address in Evanston, Illinois, and NPI 1720453160, issued on Dec 10, 2015. Check the license (Illinois 071009191, 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
1720453160
Name
John Koh
Credential
PSY.D
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
071009191 IL
Self-reported in NPPES; status is on the state search
Practice location
708 Church St, Evanston, IL 60201
Phone
(773) 234-9447
Enumerated
Dec 10, 2015
Record last updated
Dec 23, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20180827003450); 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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8 nearest clinical psychologist records → All 3,947 in Illinois → Look up another NPI →

Also registered at 708 Church St

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

  1. Joseph AlgerClinical Social Worker1780050591
  2. Ashley AllisCounselor1669871133
  3. Margaret Bloomquist, M.S.W., L.C.S.WClinical Social Worker1346380904
  4. John Bozeday, LCSWClinical Social Worker1447326608
  5. Michael Carney, PH.D.Clinical Psychologist1457418279
  6. Christine Costello, PHDClinical Child & Adolescent Psychologist1346360393

Verify John Koh 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 071009191    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. Nicholas Dunkas MD And AssociatesEvanston, IL

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

John Koh among 3,947 clinical psychologist records in Illinois

John Koh, PSY.D 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 2015, is newer than 68% of them.

  • NPI issued2015 · 68% of these records are older, 29% newer
  • In a Medicare fileYes · 16% of these records are
  • In the CMS Doctors and Clinicians fileYes · 27% of these records are
  • Graduated2011 · median 2004 among the 1,081 with a school on file
  • Record last updated2015 · 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).

158 clinical psychologist records list a practice address in Evanston

They are 158 of the 4,013 NPPES records with a practice address in Evanston, and 3,947 clinical psychologist records in Illinois.

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

The 8 clinical psychologist records with the nearest ZIP codes

  1. Patrick Casey, PHDEvanston, IL 602011295789980
  2. Anne Chodzko, PHDEvanston, IL 602011356316939
  3. Richard Cohen, PH.D.Evanston, IL 602011215926738
  4. Gregory Crisenbery, PSY.D.Evanston, IL 602011972545671
  5. Michael England, PSY.D.Evanston, IL 602011538162870
  6. Robyne Frankfort-Howard, PSY.DEvanston, IL 602011801846936
  7. Mary Hagele, PSY.D.Evanston, IL 602011942295738
  8. Judy Koenigsberg, PH.D.Evanston, IL 602011174507008

Common questions

What is John Koh, PSY.D's NPI number?

John Koh, PSY.D's National Provider Identifier (NPI) is 1720453160, issued on Dec 10, 2015. An NPI identifies a provider in billing; it is not a license.

Where is John Koh, PSY.D located?

The NPPES record lists a practice address at 708 Church St, Evanston, IL, 60201. Phone: (773) 234-9447. Providers update this record themselves, so call before visiting.

How can I verify John Koh, PSY.D's license?

NPPES lists Illinois license number 071009191, 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.