Doctor profile · Federal record
Dr. Steven Zak, MD
Neurology Physician (CMS: Neurology) · Northbrook, IL
- NPI 1861467755
- Accepts Medicare
- MIPS 75.0 / 100 · 2023
- 45 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1403 Kingsport CT
Northbrook, IL 600625100
(847) 564-1870 - Mailing address
-
10275 Little Patuxent Pkwy Ste 300
Columbia, MD 210443445
Credentials & registration
- NPI registered
- February 2006 — 20 yrs on file
- Profile last updated
- January 24, 2024
- Year of graduation
- 1981 — 45 yrs since
- Specialty taxonomy
- 2084N0400X — NUCC code
- State license (1)
- Illinois #036070165
- Medicaid
- IL #0360701653
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1861467755. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,380
Distinct HCPCS
7
Medicare allowed
$116,255
| HCPCS | Description | Services | Patients | Avg 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 | $33 | |
95938 |
Placement of skin electrodes and measurement of stimulated sites on arms and legs | 559 | 558 | $46 | |
95870 |
Needle measurement of electrical activity in arm, leg, trunk or head muscles, limited study | 483 | 242 | $20 | |
95939 |
Placement of skin electrodes and measurement of central motor stimulation in arms and legs | 264 | 264 | $120 | |
95861 |
Needle measurement of electrical activity in arm or leg muscles, 2 extremities | 256 | 256 | $82 | |
95955 |
Measurement of brain wave activity (eeg) outside the brain during surgery | 24 | 24 | $54 | |
95865 |
Needle measurement of electrical activity in voice box muscles | 18 | 18 | $83 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 627. This provider delivers 3.8× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. Steven Zak's medical specialty?
Dr. Steven Zak practices Neurology Physician in Northbrook, IL.
Where does Dr. Steven Zak practice?
Dr. Steven Zak practices at 1403 Kingsport CT, Northbrook, IL 600625100. Office phone: 8475641870.
What is Dr. Steven Zak's NPI?
Dr. Steven Zak's National Provider Identifier (NPI) is 1861467755, issued by NPPES.
Does Dr. Steven Zak accept Medicare assignment?
Yes. Dr. Steven Zak accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Steven Zak commonly perform?
Top Medicare-reported procedures in 2023: 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) (HCPCS G0453); Placement of skin electrodes and measurement of stimulated sites on arms and legs (HCPCS 95938); Needle measurement of electrical activity in arm, leg, trunk or head muscles, limited study (HCPCS 95870). Source: CMS Medicare Physician & Other Practitioners file.