STEVEN M ZAK (MD) – Neurology Physician, NPI 1861467755
Neurology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,188 NEUROLOGY in IL
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Provider Addresses for STEVEN M ZAK (MD)
1403, Kingsport Court, Ancient Tree, Northbrook, Northfield Township, Cook County, Illinois, 60062, United States
NORTHBROOK, IL 600625100
Phone: (847) 564-1870
Type: Location
10275 LITTLE PATUXENT PKWY STE 300
COLUMBIA, MD 210443445
Phone: (888) 464-2466
Type: Mailing
336, 22nd Avenue North, Nashville, Davidson County, Tennessee, 37203, United States
NASHVILLE, TN 372031844
Phone: (615) 346-8182
Fax: (866) 634-2766
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: 2006-04-26
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 |
|---|---|---|---|---|
| I20060426000631 | I | Neurology | 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 |
|---|---|---|---|---|
| G0453 | Continuous intraoperative neurophysiology monitoring, from outside the operating room (remote or nearby), per patient, (attention directed exclusively to one patient) each 15 minutes (list in addition to primary procedure) | 776 | 285 | $0 |
| 95938 | Placement of skin electrodes and measurement of stimulated sites on arms and legs | 559 | 558 | $0 |
| 95870 | Needle measurement of electrical activity in arm, leg, trunk or head muscles, limited study | 483 | 242 | $0 |
| 95939 | Placement of skin electrodes and measurement of central motor stimulation in arms and legs | 264 | 264 | $0 |
| 95861 | Needle measurement of electrical activity in arm or leg muscles, 2 extremities | 256 | 256 | $0 |
Insurance plans in this area (ZIP 60062)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| N E U R O L O G Y | OH | |
| N E U R O L O G Y | NV | |
| N E U R O L O G Y | VA | |
| - | WA | |
| N E U R O L O G Y | NY | |
| N E U R O L O G Y | TN | |
| N E U R O L O G Y | AZ | |
| N E U R O L O G Y | FL | |
| N E U R O L O G Y | MI | |
| N E U R O L O G Y | WA |
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