John F. Blattner, PHD
Clinical Psychologist · Downers Grove, IL
John F. Blattner, PHD is a clinical psychologist with a practice address in Downers Grove, Illinois, and NPI 1649392044, issued on Apr 4, 2007. Check the license (Illinois 71-4501, 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 F. Blattner
- Credential
- PHD
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 71-4501 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1000 Maple Ave, Downers Grove, IL 60515
- Phone
- (630) 968-5950
- Enumerated
- Apr 4, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 3,947 in Illinois → Look up another NPI →
Also registered at 1000 Maple Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- James English, PSY.D.Clinical Psychologist1821112897
- Daniel Lippmann, LCSWClinical Social Worker1447432034
- Margaret Mardis, MS LCPCProfessional Counselor1942352091
Verify John F. Blattner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 71-4501Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
John F. Blattner among 3,947 clinical psychologist records in Illinois
John F. Blattner, 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 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).
Clinical Psychologist providers in Illinois
There are 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 Downers Grove → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Kirk Alley, PHDDowners Grove, IL 605151568545549
- Richard Cipriano, LCSWDowners Grove, IL 605151548016215
- Kenneth Davison, PSY.D.Downers Grove, IL 605151104844240
- James English, PSY.D.Downers Grove, IL 605151821112897
- Dale Faber, PHD.Downers Grove, IL 605151881718948
- Jenna Gidman-DuttaDowners Grove, IL 605151245048834
- Kelly Hamoudah, PSY.D.Downers Grove, IL 605151558974873
- Jodi Harap, PHDDowners Grove, IL 605151588744551
Common questions
What is John F. Blattner, PHD's NPI number?
John F. Blattner, PHD's National Provider Identifier (NPI) is 1649392044, issued on Apr 4, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John F. Blattner, PHD located?
The NPPES record lists a practice address at 1000 Maple Ave, Downers Grove, IL, 60515. Phone: (630) 968-5950. Providers update this record themselves, so call before visiting.
How can I verify John F. Blattner, PHD's license?
NPPES lists Illinois license number 71-4501, 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.