About William Ares, MD
William Joseph Ares, MD, a neurosurgeon at Endeavor Health, specializes in treating complex neurological conditions involving the brain, spine and cerebrovascular system. He provides care for conditions such as brain tumors, cerebral aneurysms, chiari malformation, spinal stenosis and trigeminal neuralgia. He performs a wide range of procedures including aneurysm coiling, endovascular stroke treatment, microvascular decompression and minimally invasive spine surgery. Dr. Ares combines advanced surgical techniques with a comprehensive understanding of neurological disorders.
Overview
- Gender Male
Clinical focus
- Brain Surgery (Neurosurgery)
- Spine
- Neurosurgery
Procedures performed
- Brain surgery
- Carotid artery stenting
- Microdiscectomy
- Complex spine reconstruction
- Minimally-invasive spine surgery
- Spinal fusion
- Stereotactic neurosurgery and radiosurgery (SRS)
- Angiogram
- Craniotomy
- Shunt
- Stereotactic biopsy
- Microvascular decompression
- Laminectomy and laminoplasty
- Aneurysm coiling
- Arteriovenous malformation (AVM) embolization
- Tumor embolization
- Endovascular neurosurgery
- Cerebrovascular neurosurgery
- Brain and spine tumor surgery
- Endovascular stroke treatment
- Joint replacement of the spine
- Spinal angiography
- Kyphoplasty
- Endoscopic skull base surgery
- Endoscopy
- Minimally-invasive spine techniques
- Skull base surgery
Conditions treated
- Stroke
- Hydrocephalus
- Brain tumor
- Trigeminal neuralgia
- Hemifacial spasm
- Cerebral aneurysms
- Spinal stenosis
- Spine instability
- Neurological disorders
- Carotid stenosis
- Carpal tunnel (CTS)
- Chiari malformation
- Degenerative spine disease
- Intracerebral hemorrhage (ICH)
- Radiculopathy
- Subarachnoid hemorrhage (SAH)
- Subdural hematoma (SDH)
- Tumor in the central nervous system (brain or spine)
- Thoracic
- Lumbar
- Meningioma
- Cerebrospinal fluid (CSF) leak
- Arterio-venous malformation (AVM)
- Ruptured aneurysms
- Cerebral cavernous malformations (ccms)
- Arteriovenous fistula
- Glossopharyngeal neuralgia
- Epidural hematoma
- Carotid dissection
- Myelopathy
- Moyamoya disease
- Surgical disorders of the cervical and lumbar spine
Endeavor Health Medical Group
920 Milwaukee Ave., Suite 2100
Lincolnshire, IL 60069-3839
Lincolnshire, IL 60069-3839
Endeavor Health Medical Group
5115 N. Francisco Ave., Neurosciences Institute
Chicago, IL 60625-3611
Chicago, IL 60625-3611
Endeavor Health Medical Group
1000 Central St., Suite 880
Evanston, IL 60201-1780
Evanston, IL 60201-1780
Endeavor Health Medical Group
3122 N. Ashland Ave.
Chicago, IL 60657-3014
Chicago, IL 60657-3014
Endeavor Health Medical Group
9600 Gross Point Rd., Suite 1200
Skokie, IL 60076-1214
Skokie, IL 60076-1214
Medical School
-
2012University of Vermont College of Medicine
Residencies
-
2019NeurosurgeryUniversity of Pittsburgh Medical Center
Fellowships
-
2018NeuroendovascularUniversity of Pittsburgh Medical Center
Board certifications
-
2023Neurological SurgeryAmerican Board of Neurological Surgery
Reviews (71)
December 19, 2025
Dr Ares, best doctor I've ever met
December 6, 2025
Very personable!
December 5, 2025
Nice that the doctor was knowledgeable about my situation even on the first visit
December 3, 2025
Dr. Willian Ares is the best, excellent surgeon
November 25, 2025
Great bedside manners and all were attentive to my needs! The staff at Dr. Ares were kind and informative!
November 20, 2025
My providers have all been excellent. My biggest complaint was the scheduling of appointments that my Doctors referred me to. […]
November 18, 2025
Excellent attention from the first staff member encounter to the last one -- much appreciated
November 15, 2025
He took the time to answer my questions in an easy way to understand.
November 14, 2025
Kind and caring
November 14, 2025
He tried to help beyond but couldn't. He seems to know his area of expertise
November 12, 2025
The office is very synchronized.
November 9, 2025
Dr. Ares is First Rate, The Best.
November 9, 2025
Excellent and very kind Doctor.
October 28, 2025
My questions are always answered promptly when I need to leave a message & receive a call back. Staff are very polite and knowledgeable. I had a good comfort level with the staff & Dr. Ayers. I felt confident with Dr Ayers ability ,upon meeting him the first time.
October 9, 2025
Barely got 5 minutes with the guy and he acted rushed.
October 3, 2025
Everyone was helpful and did their job in a friendly and caring manner.
October 3, 2025
I trust Dr William Ares 100%
September 30, 2025
I really didn't need to see a spinal surgeon after all. However, Dr. Ares was vet accommodating and suggested that I continue my routine of exercise and diet to deal with my osteoporosis and spinal arthritis. He gave me the option of engaging in physical therapy if needed.
September 27, 2025
Dr. Ares has always been so wonderful. He explains everything in detail and is compassionate and makes me feel very comfortable. I am blessed to have him as my neurosurgeon and am very grateful for all he has done for me. I certainly feel that he gave me a new lease on life! I thank him from the bottom of my heart.
September 19, 2025
Was one of the best Dr I have dealt with.
September 19, 2025
Dr Ares and his team are top notch. Professional and clearly and patiently explained my health situation in understandable and reassuring terms.
September 3, 2025
This was a last-minute appointment due to the urgency of my case. Everyone from my endeavor GP to Dr. Ares staff handled it all with great professionalism and kindness.
September 3, 2025
I was very happy
September 1, 2025
Friendly, caring, incredibly competent and efficient, and on time! All healthcare professionals work in concert with each other and care about your experience in the office. I appreciate Dr. Ares and his team.
August 20, 2025
Caring and professional
August 13, 2025
Dr Ares has a terrific Dr-patient demeanor. His explanations are in layman's terms-easy to understand, concise, and thorough. I greatly appreciate his ability to listen to my questions and concerns.
August 13, 2025
He's great!
August 7, 2025
Excellent by
August 3, 2025
He was very clear in my condition.Now I got a better understanding. Very pleasant experience.
August 1, 2025
100% Dr. Aries compassion,understanding
July 31, 2025
Dr. Ares was extremely kind and helpful.
July 27, 2025
So very helpful! Very friendly and informative. Nurses are always amazing!!
July 25, 2025
It was a great experience and everyone was so kind and helpful.
July 24, 2025
Dr. Ares has my complete confidence as a surgeon.
July 22, 2025
Very accomodating
July 16, 2025
He was very understanding and very informative
July 12, 2025
Very knowledgeable and thorough w explanations. Impressive.
July 4, 2025
Felt very comfortable withm Dr Ares knowledge and abilities after his explanation of results from MRI. I had decided I didn't want surgery prior to my appt, but changed my mind after meeting Dr Ares and hearing his recommendrrations for my situation.
July 4, 2025
Excellent communication and service. I am so relieved to have a clear plan of action for my back issues.
July 2, 2025
I'm very happy with your service
July 2, 2025
Dr. Ares was respectful and addressed my concerns. I did not feel rushed. I have had a difficult time getting a diagnosis and was relieved to finally get answers to my questions after 10 years. Dr. Ares reviewed my surgical option should medical management fail.
June 19, 2025
Excellent presentation
June 15, 2025
I felt that all my questions were answered by the doctor and his staff
June 10, 2025
Dr. Ares is wonderful. I'm so blessed and grateful to have him as my doctor.
May 11, 2025
Experience was positive from start through the timing of the followup appointments and personnel at every location.
May 8, 2025
Wonderful when present
May 5, 2025
Dr Ares is a nice and knowledgeable doctor, and the staff is very kind
April 25, 2025
Dr. Ares was very good.Excellent bedside manner & very professional.
April 24, 2025
Extremely helpfully
April 22, 2025
I feel I am in talented hands
April 18, 2025
Dr. Ares was very thorough in explaining the procedure and listened to my concerns and answered all questions to our satisfaction. His staff was also very nice and professional.
April 18, 2025
Thank you!
April 15, 2025
Dr. Ares Is an amazing Doctor!! Great bedside manner.
April 9, 2025
Thorough presentaci?n of diagnosis, trestment ?ptiions, success estimste, and follow up steps
April 2, 2025
Dr. Ares is a very special physician. He still relates to his patients, like most physicians used to. He listens, presents his diagnosis and treatment suggestions, answers all questions and is warm and caring throughout. I have, and will continue to, recommend him highly.
March 27, 2025
Dr. Ares and his team are extremely professional and caring. I truly felt welcomed and received a comprehensible explanation about the issue with my spine while viewing the xrays.
March 21, 2025
So impressed with all care and desire to ease my pains
March 19, 2025
Great bed side manner, one of the best doctors I have ever had with explaining every aspect of care
March 9, 2025
Dr. Ares and his staff are the absolute best! They really get to know you and care about you.
March 7, 2025
Care provider was excellent!!!
February 22, 2025
Dr. Ares is a kind and caring person.
February 18, 2025
Dr. Ares Is not only a nice and caring doctor but also an excellent surgeon. My surgery was a success because my back and legs pain are gone. Thank you you so much Dr. Ares for making me feel better.
February 1, 2025
Complete helpful info. Got me a rush referral
January 30, 2025
Dr. Ares was amazing. I was very nervous and concerned about the findings of the MRA. He put my mind at ease and I felt comfortable with the next plan on action regarding my health.
January 28, 2025
I received outstanding care from Dr. Ares and his team.
January 15, 2025
Outstanding neurosurgeon. Explains procedures clearly. Is attentive and puts patient at ease. Good sense of humor.
January 14, 2025
Dr. Ares was very kind, explained my situation clearly, and was very reassuring.
January 11, 2025
Very experienced and easy to understand
January 7, 2025
Excellent
January 7, 2025
100% Recommend
January 3, 2025
Dr Ares and the other staff I interacted with (receptionist, nurse) were great - Friendly, efficient
To find out if this healthcare professional accepts your insurance plan, it is important to verify coverage with your health insurance company. Verify your coverage by either calling the number on your insurance card or confirming coverage through your insurance company's web site or mobile app.
Endeavor Health and its hospitals make this provider profile available to inform patients and support their selection of a care provider.
More about William
Article
According to the Centers for Disease Control and Prevention, someone in the United States has a stroke every 40 seconds and every 3.5 minutes a person dies of stroke.
Expert care
Neurosciences
Your Best Health Chicago
