What patients are saying
Overall rating
5.00
Average wait time
4.86
Bedside manner
5.00
“Made a same-day appt and after completing the new patient forms was seen immediately. Dr Brennan is friendly, efficient and thorough. Would absolutely return for continued care. ”
Cheryl W.April 16, 2026
“I was amazed by the number of tests that were performed on my eyes for my yearly checkup. This was my first time seeing Dr. Brennan, and I was literally "blown away" by how comprehensive the testing was. He was also kind, understanding, and didn't mind at all if I asked what I thought were silly questions. My visit could not have been better!”
Deborah M.April 15, 2026
About Dr. Daniel Brennan
Daniel Brennan, O.D., graduated from the Illinois College of Optometry in 2017 after earning his Bachelor of Science degree from Illinois State University in 2009.
With a dedication to providing comprehensive eye care, Dr. Brennan holds a MiSight Certification, showcasing his expertise in myopia control, ocular surface disease, and pre- and post-operative care for refractive and cataract surgery. Dr. Brennan values the opportunity to help people through his profession and appreciates employing the latest advancements in optometry to enhance his patients' visual health.
Outside the practice, he finds joy in raising his children and spending quality time with family and friends. His interests include landscaping, reading, and traveling, with a passion for experiencing live music events.
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In-network insurances
99% of patients have successfully booked with these insurances
Aetna
BlueCross BlueShield
Cigna
Davis Vision
Emblem Health
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UnitedHealthcare
Office location
Education and background
Practice names
Education and training
- Illinois College of Optometry, Doctor of Optometry
- Illinois State University, Bachelor's
Languages spoken
- English
Provider's gender
Male
NPI number
1770006736
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
5.00
Wait time
4.86
Bedside manner
5.00
Your trust is our top concern, so providers can't pay to alter or remove reviews. We also don't publish reviews that contain any private patient health information. Learn more here
90 reviews
Most relevant
Very good visit with Dr. Brennan. He is very professional and has a good bedside manner. I recommend him highly.
March 12, 2025Pamela A.Verified patient
I like the way I was explained everything and all my questions were answered! Great doctor, highly recommended!
February 3, 2025Tiberius I.Verified patient
Very friendly staff and caring, knowledgeable Doctor! Feel very confident having my mother seen as a patient.
February 26, 2025Slavica M.Verified patient
Dr. Brennan was thorough and kind. He explained everything clearly and patiently. Highly recommend!
July 2, 2025Mary S.Verified patient
Very helpful staff and the experience did not feel rushed at all!
November 24, 2025Initials hidden
The doctor and staff are excellent! Very professional.
October 8, 2024Jill G.Verified patient
Made a same-day appt and after completing the new patient forms was seen immediately. Dr Brennan is friendly, efficient and thorough. Would absolutely return for continued care.
April 16, 2026Cheryl W.Verified patient
I was amazed by the number of tests that were performed on my eyes for my yearly checkup. This was my first time seeing Dr. Brennan, and I was literally "blown away" by how comprehensive the testing was. He was also kind, understanding, and didn't mind at all if I asked what I thought were silly questions. My visit could not have been better!
April 15, 2026Deborah M.Verified patient
Great practitioner. Friendly and helpful staff.
March 8, 2026Grace L.Verified patient
I’ve been looking for a good doctor, since moving back to Illinois. I was so happy to have found him.
He listened to my concerns, gave advice and recommendations. Wasn’t just trying to sell glasses or products.
Loved his directness, complete testing process and explanation process.
March 4, 2026Deborah M.Verified patient
I will go back.
October 23, 2025Initials hidden
He was a solid eye doctor. I liked him .
September 4, 2025Timothy R.Verified patient
No complaints, he was very thorough with my vision problems and helping diagnosing. Excellent communicator and bedside manner. If I needed to visit again, I would not hesitate.
August 28, 2025Initials hidden
Everything went fine.
August 4, 2025Julia H.Verified patient
Dr. Brennan is very attentive and considerate. He doesn't just breeze in and out as some doctors do. He listens and explains everything thoroughly. The office staff is friendly and welcoming, and the premises is very clean. Great experience!
July 26, 2025Mary S.Verified patient
The doctors are always friendly and helpful. They listen without rushing you through the process. I love the attention that is given when you are there. Office is clean, all staff are friendly. I love the variety of glasses they offer.
July 26, 2025Mary N.Verified patient
Great experience!
Less than 1 year agoKellie D.Verified patient
Pleasant and professional
June 3, 2025Charlie P.Verified patient
Great eye dr
May 10, 2025Michael S.Verified patient
Dr. Brennan was great. Very kind, patient with your questions, and didn’t speed up the process. He took his time and reviewed everything with you.
February 10, 2025Roger R.Verified patient
This was by far the best experience I’ve had at a doctor’s office. The entire crew was beyond helpful, warm, and welcoming. Thank you so much to all of you! The beautiful Ms. Johnnie at the front desk, Maggie the doctors assistant (incredible), Dr. Brennan, and Cody were all unbelievably fabulous. I can’t say enough good things about my experience. Thank you so very much for providing such wonderful, thorough care and the friendly atmosphere! I look forward to coming back in a year :)
September 27, 2024Jackie M.Verified patient
Incredible experience!
August 26, 2024Kaylee S.Verified patient
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How soon can I make an appointment with Dr. Daniel Brennan?
Generally, Dr. Daniel Brennan has appointments available on Zocdoc within 1 week. You can see Dr. Brennan's earliest availability on Zocdoc and make an appointment online.
Is Dr. Daniel Brennan accepting new patients?
Dr. Daniel Brennan generally accepts new patients on Zocdoc. You can see Dr. Brennan's earliest availability on Zocdoc and schedule an appointment online.
Does Dr. Daniel Brennan accept my insurance?
Choose your insurance plan to verify if Dr. Brennan is in-network.
Can I make an appointment with Dr. Daniel Brennan online?
Yes, you can make an appointment online with Dr. Brennan using Zocdoc. It’s simple, secure, and free.
What practice does Dr. Daniel Brennan work with?
Dr. Daniel Brennan works with EyeCare Specialties of Illinois.
Where is Dr. Daniel Brennan's office located?
Dr. Daniel Brennan's office is located at 1900 Waukegan Rd, Glenview, IL 60026.
What are common reasons for patients to see Dr. Daniel Brennan?
Dr. Daniel Brennan frequently sees patients for Contact Lenses, Eyeglasses, General Eye Consultation, Retina Consultation, and Routine Eye Exam. You can see other visit reasons for Dr. Daniel Brennan on their profile.
What languages does Dr. Daniel Brennan speak?
Dr. Daniel Brennan speaks English.
How do patients rate Dr. Daniel Brennan in reviews?
90 patients have reviewed Dr. Daniel Brennan. The overall rating for this doctor is 5/5. They have a 5/5 rating for bedside manner and a 4.86/5 rating for wait time. You can read individual reviews and ratings on their profile.