Charlene M. Slezak, PSY.D
Clinical Psychologist · Naperville, IL
Charlene M. Slezak, PSY.D is a clinical psychologist with a practice address in Naperville, Illinois, and NPI 1376635011, issued on Sep 29, 2006. Check the license with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Charlene M. Slezak
- Credential
- PSY.D
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- Practice location
- 1819 Bay Scott Cir Ste 109, Naperville, IL 60540
- Phone
- (630) 357-2456
- Enumerated
- Sep 29, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (630) 357-2482
- Medicare enrollment
- Enrolled (PECOS I20100831000835); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 3,947 in Illinois → Look up another NPI →
Also registered at 1819 Bay Scott Cir Ste 109
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Charlene M. Slezak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Samaritan Interfaith Counseling Center IncNaperville, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Charlene M. Slezak among 3,947 clinical psychologist records in Illinois
Charlene M. Slezak, 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 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
- Graduated1985 · median 2004 among the 1,081 with a school on file
- 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).
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.
All 3,947 in Illinois → Every provider in Naperville → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Carolyn Atkinson, PH.D.Naperville, IL 605401093828824
- Rulon Gibson, PH.D.Naperville, IL 605401689686925
- Michael Ingersoll, PSY.DNaperville, IL 605401487630737
- Joseph Keegan, PSYDNaperville, IL 605401962418871
- Josephine Kennedy, PSY.D.Naperville, IL 605401902876816
- Donna Lettieri-Marks, PSY.D.Naperville, IL 605401346233665
- Joanne Lorenz, PH.D.Naperville, IL 605401497725394
- Lisa Pinto, PSYDNaperville, IL 605401053417097
Common questions
What is Charlene M. Slezak, PSY.D's NPI number?
Charlene M. Slezak, PSY.D's National Provider Identifier (NPI) is 1376635011, issued on Sep 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Charlene M. Slezak, PSY.D located?
The NPPES record lists a practice address at 1819 Bay Scott Cir Ste 109, Naperville, IL, 60540. Phone: (630) 357-2456. Providers update this record themselves, so call before visiting.
How can I verify Charlene M. Slezak, PSY.D's license?
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.