Mary Elizabeth Strain, PHD
Clinical Psychologist · Barrington, IL
Mary Elizabeth Strain, PHD is a clinical psychologist with a practice address in Barrington, Illinois, and NPI 1558541227, issued on Nov 9, 2007. Check the license (Illinois 071.007296, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Elizabeth Strain
- Credential
- PHD
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- 071.007296 IL
Self-reported in NPPES; status is on the state search - Practice location
- 901 Fox Gln, Barrington, IL 60010
- Phone
- (847) 304-0770
- Enumerated
- Nov 9, 2007
- Record last updated
- Jan 27, 2026
- Fax
- (847) 304-0795
- Medicare enrollment
- Enrolled (PECOS I20100610001141); 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 901 Fox Gln
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cheryl Borst, PSYDClinical Psychologist1306910633
Verify Mary Elizabeth Strain in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 071.007296Check 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
- Borst And Associates, IncBarrington, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Elizabeth Strain among 3,947 clinical psychologist records in Illinois
Mary Elizabeth Strain, 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. Its NPI, issued in 2007, is newer than 24% of them.
- NPI issued2007 · 24% of these records are older, 57% newer
- In a Medicare fileYes · 16% of these records are
- In the CMS Doctors and Clinicians fileYes · 27% of these records are
- Graduated2002 · median 2004 among the 1,081 with a school on file
- Record last updated2026 · 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).
24 clinical psychologist records list a practice address in Barrington
They are 24 of the 756 NPPES records with a practice address in Barrington, and 3,947 clinical psychologist records in Illinois.
All 3,947 in Illinois → Every provider in Barrington → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Cheryl Borst, PSYDBarrington, IL 600101306910633
- Grant Boyer, PSYDBarrington, IL 600101861560088
- Joel Carnazzo, PSY.D.Barrington, IL 600101013020452
- Pamela Cotton, PH.D.Barrington, IL 600101558576025
- Edward Debellis, PSY.D.Barrington, IL 600101164534897
- Daniel Dewitt, PHDBarrington, IL 600101689737009
- Patricia Dewitt, PHDBarrington, IL 600101497818892
- Ronald Ercoli, PSY.D.Barrington, IL 600101700935210
Common questions
What is Mary Elizabeth Strain, PHD's NPI number?
Mary Elizabeth Strain, PHD's National Provider Identifier (NPI) is 1558541227, issued on Nov 9, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mary Elizabeth Strain, PHD located?
The NPPES record lists a practice address at 901 Fox Gln, Barrington, IL, 60010. Phone: (847) 304-0770. Providers update this record themselves, so call before visiting.
How can I verify Mary Elizabeth Strain, PHD's license?
NPPES lists Illinois license number 071.007296, 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.
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.