William Joseph Ares, MD
Neurological Surgery Physician · Evanston, IL
William Joseph Ares, MD is a neurological surgery physician with a practice address in Evanston, Illinois, and NPI 1396039442, issued on Jun 7, 2011. Check the license (Illinois 036148890, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- William Joseph Ares
- Credential
- MD
- Primary taxonomy
- Neurological Surgery Physician 207T00000X
- License number
- 036148890 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1000 Central St Ste 880, Evanston, IL 60201
- Phone
- (847) 570-1440
- Enumerated
- Jun 7, 2011
- Record last updated
- Jul 8, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (847) 570-1442
- Medicare enrollment
- Enrolled (PECOS I20190723000200); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest neurological surgery physician records → All 375 in Illinois → Look up another NPI →
Also registered at 1000 Central St Ste 880
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Julian Bailes, MDNeurological Surgery Physician1225138001
- Zachary Bulwa, MD, MSNeurology Physician1164876553
- Sarah Burroughs, DOGastroenterology Physician1447755434
- Kristina Drabkin, D.O.Physical Medicine & Rehabilitation Physician1184859985
- Agnieszka Heleniak, FNP-BCNurse Practitioner1033892260
- Sheila Inciong-Vergara, NP-CNurse Practitioner1659106136
Verify William Joseph Ares in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036148890Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2% fewer Medicare Part D claims than the average neurological surgery physician in 2024
169 Medicare Part D claims for 71 beneficiaries, against an average of 172 among the 4,378 providers of this specialty who prescribed in Part D. 23 claims were for opioids.
Most prescribed
- Methylprednisolone30 claims
- Clopidogrel21 claims
- Gabapentin18 claims
- Hydrocodone-Acetaminophen15 claims
- Amlodipine Besylate12 claims
- Cyclobenzaprine Hcl11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 93.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $3,720.39
14 payments; by number, the most common kind was food and beverage; the largest payer was Scientia Vascular. The 5,377 providers of this specialty with any payment received $14,925.58 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Endeavor Health Medical GroupEvanston, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Joseph Ares among 375 neurological surgery physician records in Illinois
William Joseph Ares, MD is one of 375 neurological surgery physician records with a practice address in Illinois. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 58% of them.
- NPI issued2011 · 58% of these records are older, 40% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2012 · median 2004 among the 199 with a school on file
- Record last updated2019 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207T00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurological Surgery Physician providers in Illinois
There are 375 neurological surgery physician records in Illinois.
All 375 in Illinois → Every provider in Evanston → Neurological Surgery Physician nationwide →
The 8 neurological surgery physician records with the nearest ZIP codes
- Yasmine AlkhalidEvanston, IL 602011760047138
- Julian Bailes, MDEvanston, IL 602011225138001
- Michael Musacchio, M.D.Evanston, IL 602011306036876
- Ricky Wong, MDChicago, IL 602011184862336
- Benjamin Lecompte, MDHoffman Estates, IL 601941437218765
- Christopher Ahuja, MDWinfield, IL 601901316625288
- Sarah Bandt, MDWinfield, IL 601901922261742
- Taras Masnyk, MD, PHDWinfield, IL 601901912078759
Common questions
What is William Joseph Ares, MD's NPI number?
William Joseph Ares, MD's National Provider Identifier (NPI) is 1396039442, issued on Jun 7, 2011. An NPI identifies a provider in billing; it is not a license.
Where is William Joseph Ares, MD located?
The NPPES record lists a practice address at 1000 Central St Ste 880, Evanston, IL, 60201. Phone: (847) 570-1440. Providers update this record themselves, so call before visiting.
How can I verify William Joseph Ares, MD's license?
NPPES lists Illinois license number 036148890, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Joseph Ares, MD prescribe under Medicare Part D?
In 2024, William Joseph Ares, MD had 169 Medicare Part D claims for 71 beneficiaries; the average among neurological surgery physician prescribers was 172. Part D covers Medicare prescriptions only.
What is William Joseph Ares, MD's MIPS final score?
The 2023 MIPS final score is 93.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.