Gary Greenberg, PH.D.
Clinical Psychologist · Northbrook, IL
Gary Greenberg, PH.D. is a clinical psychologist with a practice address in Northbrook, Illinois, and NPI 1801942016, issued on Jan 28, 2007. Check the license (Illinois 71-1084, 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
- Gary Greenberg
- Credential
- PH.D.
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 71-1084 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1500 Shermer RD, Northbrook, IL 60062
- Phone
- (847) 205-1955
- Enumerated
- Jan 28, 2007
- Record last updated
- Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (847) 205-1977
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 3,947 in Illinois → Look up another NPI →
Also registered at 1500 Shermer RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gary Greenberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 71-1084Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Gary Greenberg among 3,947 clinical psychologist records in Illinois
Gary Greenberg, PH.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 not. Its NPI, issued in 2007, is newer than 24% of them.
- NPI issued2007 · 24% of these records are older, 57% newer
- In a Medicare fileNo · 16% of these records are
- In the CMS Doctors and Clinicians fileNo · 27% of these records are
- Record last updated2007 · 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).
87 clinical psychologist records list a practice address in Northbrook
They are 87 of the 2,226 NPPES records with a practice address in Northbrook, 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 Northbrook → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Michelle Chaban, PSY.D.Northbrook, IL 600621154378792
- Joan Costello, PH.D.Northbrook, IL 600621295756013
- Robert Davenport, PH.D.Northbrook, IL 600621902855356
- Kenneth Fils, PH.D.Northbrook, IL 600621487694279
- Nicole Gerber, PSY.D.Northbrook, IL 600621093758575
- John Gobby, PSY.D.Northbrook, IL 600621215978341
- Joel Groner, PSYDNorthbrook, IL 600621407817679
- Jack Joseph, PH. D.Northbrook, IL 600621699705517
Common questions
What is Gary Greenberg, PH.D.'s NPI number?
Gary Greenberg, PH.D.'s National Provider Identifier (NPI) is 1801942016, issued on Jan 28, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Gary Greenberg, PH.D. located?
The NPPES record lists a practice address at 1500 Shermer RD, Northbrook, IL, 60062. Phone: (847) 205-1955. Providers update this record themselves, so call before visiting.
How can I verify Gary Greenberg, PH.D.'s license?
NPPES lists Illinois license number 71-1084, 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.