DR. WILLIAM ERNEST NORDBROCK (PH.D., ABPP) – Clinical Neuropsychologist, NPI 1881618965
Clinical Neuropsychologist
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,600 CLINICAL PSYCHOLOGIST in IL
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Provider Addresses for DR. WILLIAM ERNEST NORDBROCK (PH.D., ABPP)
755, McArdle Drive, Crystal Lake, McHenry County, Illinois, 60014, United States
SUITE E
CRYSTAL LAKE, IL 600141717
Phone: (815) 355-8589
Fax: (815) 923-7579
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
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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: 2014-12-04
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 |
|---|---|---|---|---|
| I20141204000179 | I | Clinical Psychologist | IN | 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 | 41 | 37 | $0 |
| 90785 | Psychiatric services complicated by communication factor | 26 | 24 | $0 |
| 90832 | Psychotherapy, 30 minutes | 26 | 21 | $0 |
| 90834 | Psychotherapy, 45 minutes | 25 | 23 | $0 |
Insurance plans in this area (ZIP 60014)
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