OLESIA SHALAYSKA – Clinical Psychologist, NPI 1558816371
Clinical Psychologist
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,600 CLINICAL PSYCHOLOGIST in IL
Provider Addresses for OLESIA SHALAYSKA
4320 WINFIELD RD STE 200
WARRENVILLE, IL 605554023
Phone: (630) 686-8875
Fax: (630) 686-5445
Type: Location
4N701 SCHOOL RD STE A
ST CHARLES, IL 60175
Phone: (630) 549-6497
Fax: (630) 549-0942
Type: Location
4N701 School Rd Ste A
St Charles, IL 60175
Phone: (630) 549-6497
Fax: (630) 549-0942
Type: Location
112 W Jefferson Blvd
Ste 112
South Bend, IN 466011923
Phone: (574) 546-1900
Fax: (574) 546-1999
Type: Location
7110 W 127th St Ste 150
Palos Heights, IL 604631579
Phone: (630) 686-8875
Fax: (630) 686-5445
Type: Location
1900, Basswood Lane, Glendale Heights, DuPage County, Illinois, 60139, United States
GLENDALE HEIGHTS, IL 601392111
Phone: (630) 536-9444
Type: Mailing
21W043 KENSINGTON RD
LOMBARD, IL 601485116
Phone: (630) 536-9444
Fax: (630) 686-5445
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: 2018-08-20
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 |
|---|---|---|---|---|
| I20180820002153 | 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 |
|---|---|---|---|---|
| 90834 | Psychotherapy, 45 minutes | 206 | 24 | $0 |
| 90832 | Psychotherapy, 30 minutes | 73 | 16 | $0 |
Insurance plans in this area (ZIP 60555)
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