DR. MARY ELIZABETH STRAIN (PHD) – Clinical Psychologist, NPI 1558541227
Clinical Psychologist
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,600 CLINICAL PSYCHOLOGIST in IL
Provider Addresses for DR. MARY ELIZABETH STRAIN (PHD)
22, Barrington Road, Oakhill, Horsham, West Sussex, South East, England, RH13 5SN, United Kingdom
SUITE 220
BARRINGTON, IL 600102379
Phone: (847) 304-0770
Fax: (847) 304-0795
Type: Mailing
901 FOX GLN
BARRINGTON, IL 600101863
Phone: (847) 304-0770
Fax: (847) 304-0795
Type: Location
901 FOX GLEN
BARRINGTON, IL 600101863
Phone: (847) 304-0780
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
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Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2010-06-10
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20100610001141 | I | Clinical Psychologist | IL | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 90837 | Psychotherapy, 1 hour | 75 | 13 | $0 |
| 90834 | Psychotherapy, 45 minutes | 62 | 14 | $0 |
| 90791 | Psychiatric diagnostic evaluation | 16 | 15 | $0 |
Insurance plans in this area (ZIP 60010)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | IL | |
| Mental Health Counselor | IL | |
| Clinical Psychologist | IL | |
| Clinical Psychologist | IL | |
| Clinical Social Worker | IL | |
| Clinical Social Worker | IL | |
| - | IL | |
| Clinical Social Worker | IL |
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