MICHAEL REZAK (MD, PHD) – Neurology Physician, NPI 1003975897
Neurology Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
1,188 NEUROLOGY in IL
Provider Addresses for MICHAEL REZAK (MD, PHD)
1555 Barrington Rd Ste 2400
Hoffman Estates, IL 601691063
Phone: (847) 981-3630
Type: Location
1875 DEMPSTER ST STE 625
PARK RIDGE, IL 600681137
Phone: (847) 723-4088
Fax: (847) 627-8700
Type: Location
1555 BARRINGTON RD STE 2400
HOFFMAN ESTATES, IL 601691063
Phone: (847) 981-3630
Type: Mailing
29373 NETWORK PL
CHICAGO, IL 606731293
Phone: (847) 390-5900
Type: Mailing
55, Amandas Way, Town of La Grange, Dutchess County, New York, 12540, United States
LAGRANGEVILLE, NY 125405108
Phone: (845) 475-9660
Fax: (845) 475-9938
Type: Mailing
Reade Place, Poughkeepsie, Dutchess County, New York, 12601, United States
POUGHKEEPSIE, NY 126013986
Phone: (845) 214-1922
Fax: (845) 214-1930
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 60 Open Payments records for all available years, with a total value of $15,824.
Total Amount is formed as General ($15,824) + Research ($0) + Ownership ($0) = $15,824.
Last reported payment date: 2024-12-16 • Largest payer in this snapshot: Kyowa Kirin, Inc. ($6,492).
Total Amount
$15,824
General + Research + Ownership
Payments
60
Total payment records
General Amount
$15,824
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-16
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Kyowa Kirin, Inc. | $6,492 |
| Medtronic, Inc. | $3,238 |
| ACADIA Pharmaceuticals Inc | $3,059 |
| ABBVIE INC. | $2,084 |
| MDD US Operations, LLC | $524 |
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: 2005-06-22
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 |
|---|---|---|---|---|
| I20050622000673 | 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 |
|---|---|---|---|---|
| J0585 | Injection, onabotulinumtoxina, 1 unit | 14,385 | 24 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 423 | 192 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 77 | 55 | $0 |
| 95874 | Needle measurement of electrical activity in muscle with injection of chemical for paralysis of nerve muscle | 51 | 23 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 51 | 38 | $0 |
Insurance plans in this area (ZIP 60169)
Loading plans...
Group practice members
| Name | Specialty | State |
|---|---|---|
| Nephrology, Internal Medicine | IL | |
| A N E S T H E S I O L O G Y | IL | |
| - | MN | |
| - | IL | |
| - | IL | |
| Rheumatology, Internal Medicine | IL | |
| - | IL | |
| Internal Medicine | IL | |
| P S Y C H I A T R Y | IL | |
| - | IL |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.