Doctor profile · Federal record
Dr. William Ares, MD
Neurological Surgery Physician (CMS: Neurosurgery) · Evanston, IL
- NPI 1396039442
- Accepts Medicare
- MIPS 90.4 / 100 · 2023
- 14 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1000 Central St Ste 880
Evanston, IL 60201
(847) 570-1440
fax (847) 570-1442
Credentials & registration
- NPI registered
- June 2011 — 15 yrs on file
- Profile last updated
- July 8, 2019
- Year of graduation
- 2012 — 14 yrs since
- Specialty taxonomy
- 207T00000X — NUCC code
- State license (1)
- Illinois #036148890
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1396039442. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
508
Distinct HCPCS
10
Medicare allowed
$110,035
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99204 |
New patient office or other outpatient visit, 45-59 minutes | 70 | 70 | $143 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 63 | 59 | $104 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 45 | 38 | $70 | |
36224 |
Insertion of tube into internal neck artery for diagnosis or treatment with review by radiologist | 35 | 34 | $312 | |
75898 |
Imaging of blood vessel | 34 | 29 | $103 | |
75894 |
Review by radiologist of image for insertion of material to block blood flow | 33 | 29 | $81 | |
61624 |
Occlusion of central nervous system or spinal cord artery | 31 | 27 | $1,294 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 31 | 31 | $140 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 31 | 31 | $194 | |
36227 |
Insertion of tube into external neck artery for diagnosis or treatment with review by radiologist | 27 | 27 | $154 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 31. This provider delivers 16× the peer median.Open Payments
Industry payments received
All-time total
$3,720
Transactions
14
Manufacturers
7
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Scientia Vascular | 3 | $3,103.02 | |
| MicroVention, Inc. | 3 | $234.47 | |
| Stryker Corporation | 3 | $186.15 | |
| Penumbra, Inc. | 1 | $118.81 | |
| Imperative Care, Inc | 1 | $46.25 | |
| DePuy Synthes Sales Inc. | 1 | $21.73 | |
| Medtronic, Inc. | 2 | $9.96 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
143
Patients
68
Total drug cost
$2,008
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Methylprednisolone | Generic | 30 | 28 | $261 |
| Meloxicam | Generic | 23 | 0 | $321 |
| Cyclobenzaprine Hcl | Generic | 20 | 14 | $256 |
| Gabapentin | Generic | 19 | 0 | $501 |
| Tizanidine Hcl | Generic | 19 | 12 | $304 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 18 | 14 | $161 |
| Clopidogrel (Clopidogrel Bisulfate) | Brand | 14 | 0 | $204 |
Hospital affiliations
Frequently asked questions
What is Dr. William Ares's medical specialty?
Dr. William Ares practices Neurological Surgery Physician in Evanston, IL.
Where does Dr. William Ares practice?
Dr. William Ares practices at 1000 Central St Ste 880, Evanston, IL 60201. Office phone: 8475701440.
What is Dr. William Ares's NPI?
Dr. William Ares's National Provider Identifier (NPI) is 1396039442, issued by NPPES.
Does Dr. William Ares accept Medicare assignment?
Yes. Dr. William Ares accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Ares commonly perform?
Top Medicare-reported procedures in 2023: New patient office or other outpatient visit (HCPCS 99204); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.