John Alexander Harrow, PHD
Clinical Psychologist · Naperville, IL
John Alexander Harrow, PHD is a clinical psychologist with a practice address in Naperville, Illinois, and NPI 1134887516, issued on Dec 2, 2021. Check the license (Illinois 071.010658, 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.
- Name
- John Alexander Harrow
- Credential
- PHD
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 071.010658 IL
Self-reported in NPPES; status is on the state search - Practice location
- 400 E Diehl RD Ste 440, Naperville, IL 60563
- Phone
- (630) 225-9019
- Enumerated
- Dec 2, 2021
- Record last updated
- May 4, 2026
- Fax
- (844) 376-0919
- Entity
- Type 1 · individual
Also registered at 400 E Diehl RD Ste 440
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maxine AmentMental Health Counselor1285574178
- Erica BizubPsychiatric/Mental Health Nurse Practitioner1598613671
- Mariah ClemonsSocial Worker1922956283
- Kyshema Jefferson, PHD, MACounseling Psychologist1376428045
- Megan LarabeeMental Health Counselor1689522328
- Erica Long, PSYDPsychologist1508786385
Verify John Alexander Harrow in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 071.010658Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
137 clinical psychologist records list a practice address in Naperville
They are 137 of the 4,634 NPPES records with a practice address in Naperville, and 3,947 clinical psychologist records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 137 in Naperville → All 3,947 in Illinois → Every provider in Naperville →
Other clinical psychologist records in Illinois
- Kathy Abbott, PSYDEvergreen Park, IL1922188929
- Lamese AbdelhamidOrland Park, IL1992671440
- James Abec, PH.D.Lombard, IL1770791907
- Allison Abel, PSY.DHines, IL1003638040
- William Aber, PH.D.Chicago, IL1598777187
- Alexis AbernNorthfield, IL1588064034
- Leslie Abrams, PH.D.Deerfield, IL1861558348
- Dayna Abramson, PSYDRomeoville, IL1891523502
- Huda Abuasi, PSY.D.Orland Park, IL1841312808
- Allison Ackerman, PH.D.Deerfield, IL1235158858
Common questions
What is John Alexander Harrow, PHD's NPI number?
John Alexander Harrow, PHD's National Provider Identifier (NPI) is 1134887516, issued on Dec 2, 2021. An NPI identifies a provider in billing; it is not a license.
Where is John Alexander Harrow, PHD located?
The NPPES record lists a practice address at 400 E Diehl RD Ste 440, Naperville, IL, 60563. Phone: (630) 225-9019. Providers update this record themselves, so call before visiting.
How can I verify John Alexander Harrow, PHD's license?
NPPES lists Illinois license number 071.010658, 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.
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.