Alexander S. Tosiou, MD

Alexander S. Tosiou, MD

4.9 
135 ratings  Read Reviews
Northwestern Medicine logoNorthwestern Medical Group

Primary Specialty

Gastroenterology

Insurance

Insurance plans are subject to change. View insurance plans accepted at each hospital and by each NMHC physician group.
Accepting New Patients

Education

Medical Education:
MD, Loyola University Stritch School of Medicine - 1993
Residency:
McGaw Medical Center of Northwestern University - 1996
Fellowships:
Advocate Health Care (Advocate Lutheran General Hospital) - 1999

Board Certifications

  • American Board of Internal Medicine - Gastroenterology (Certified)

Faculty Profile

Health System Clinician, Feinberg School of Medicine

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Practice Groups and Affiliations

Medical Group:
Northwestern Medical Group
Physician Category:
Northwestern Medicine Physician Network
On Medical Staff At:
Grayslake Ambulatory Surgery Center
Northwestern Lake Forest Hospital

Ratings and Reviews

At Northwestern Medicine, our patient’s feedback is important to us. While different care providers have their own unique strengths, we strive to be as transparent as possible with our quality of care.

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Overall Rating

4.9
4.9 

135 Ratings

Reviews from Patients

138 Reviews

November 13, 2020

5.0

I have been going to Dr. Tosiou for many years. He takes the time to explain so you understand.

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November 13, 2020

5.0

Everything went well.

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November 12, 2020

5.0

Dr. Tosiou spent time with me to explain the procedure and answer all my questions.

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November 12, 2020

5.0

Really smooth and seamless experience. Evey interaction was pleasant and professional.

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November 12, 2020

5.0

Great appointment from start to finish. Really took the time to make sure you understand everything.

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November 11, 2020

5.0

Whole staff is patient, responsive and kind. Dr. Tosiou listens and cares.

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November 09, 2020

5.0

Doctor Tosiou has stood by me time and time again these last 20+years. I can't thank him enough! Best Doctor ever.

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November 09, 2020

5.0

I truly could not have lived my life and existed for these last 20+ years without the support and understanding of my doctor. Dr. Tosiou! He has been by my side each step of the way. May not always think on the same lines. Butted heads for sure. But when I need him, he is always there with understanding and support!! Thank You! Doctor Tosiou!!

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November 05, 2020

5.0

Through and kind.

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November 05, 2020

5.0

Through and kind.

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November 03, 2020

5.0

Personable and thorough. Excellent experience. Showed great care and concern

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November 02, 2020

5.0

Dr. Tosio listens well to my concerns and explains things well. He is an excellent doctor and has given me excellent care.

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November 02, 2020

5.0

Doctors, nurses, and front desk personnel are wonderful.

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October 31, 2020

5.0

All went smoothly

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October 30, 2020

5.0

Answered my questions

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October 30, 2020

5.0

On time, pleasant experience

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October 30, 2020

5.0

He listened.Asked questions.Explained plan of action .Gave me hope and some relief. What more can I ask for

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October 30, 2020

5.0

He listened. Made a plan that he described and was able to answer questions.

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October 29, 2020

5.0

Good Doctor.

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October 29, 2020

5.0

My doctor.

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October 28, 2020

5.0

Excellent doctor

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October 28, 2020

5.0

Excellent doctor.

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October 26, 2020

5.0

patient, thorough, informative

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October 26, 2020

5.0

on time and efficient

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October 25, 2020

5.0

Dr. Tosiou is an excellent doctor who listened to what I had to say.

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October 23, 2020

5.0

Dr T has been my dr for a long time. I like him and he solved my gastro problems years ago.His office staff are friendly and efficient.

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October 23, 2020

5.0

Dr. Tosiou knows what to do

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October 23, 2020

5.0

Dr Tosiou is wonderful and knowledgeable and help me understand. I appreciatehis concern for me.5 stars. Thank you so much Dr. TosiouHolly Boyer.

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October 22, 2020

5.0

Es un m?©dico con experiencia y sabe c??mo comunicarse con el paciente

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October 22, 2020

5.0

Fue mi primera visita a ese lugar y me pareci?? muy bien y ?©l Dr muy amable y muy seguro de todas sus recomendaciones y sugerencias gracias Dr Tosiou

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October 21, 2020

5.0

Dr. Tosiou takes his time To explain any questions I may have.

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October 21, 2020

5.0

Dr. Torsiou and his staff are great. Dr. Torsiou is very understanding and listens.

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October 21, 2020

4.0

I have gone to Dr Tosiou almost 20 years and always been pleased.

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October 21, 2020

4.0

I've always been very pleased with the service and care there.

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October 20, 2020

5.0

Dr. Tosiou has always been just great — I've been going to him for 20 years.

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October 20, 2020

5.0

Always very kind and helpful. Thank you for all that you do!!

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October 20, 2020

5.0

Like my doctor

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October 18, 2020

5.0

i love him!

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October 18, 2020

5.0

very understanding and help with problems.

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October 14, 2020

5.0

Very thorough

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October 14, 2020

5.0

Dr. Tosiu was very thorough and took the time to explain everything

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October 14, 2020

5.0

Dr Tosiou is very attentive and a good problem solver.

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October 14, 2020

5.0

On time, great listening and a sense of humor.

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October 14, 2020

5.0

Great staff. On time appointment.

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October 12, 2020

5.0

Great Doctor who listens and works with you to address your issues

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October 12, 2020

5.0

Great Doctor and staff

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October 07, 2020

4.0

He is personable and seems competent. I will have paid for a nice friendly visit. Nothing more was accomplished

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October 07, 2020

4.0

This was an introductory visit (pre colonoscopy). I can only recommend his bedside manner at this time which was competent and direct. I will be paying for friendly visit.

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October 06, 2020

5.0

Very professional, but also very personable.

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October 06, 2020

5.0

Really like my doctor!

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October 01, 2020

5.0

Very caring compassionate doctor

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October 01, 2020

5.0

Entire staff and doctor very caring and helpful

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September 30, 2020

5.0

Dr Tosiou thoroughly explained my condition, and his recommendations for my care, while being patient with my questions.

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September 30, 2020

5.0

Efficient, courteous staff.

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September 21, 2020

5.0

He has good communication skills and is very experienced.

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September 21, 2020

5.0

Good doctors, good facility, and ease of scheduling.

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September 21, 2020

4.0

Liked my first visit.

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September 21, 2020

4.0

Liked my first visit.

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September 18, 2020

5.0

He is on top of the research.

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September 18, 2020

5.0

My doctor was sensitive to my needs.

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September 18, 2020

5.0

He had great bedside manner on a complex problem

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September 18, 2020

5.0

He was so understanding and not alarming.

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September 17, 2020

5.0

Explains

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September 17, 2020

5.0

On time, very through

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September 17, 2020

5.0

Very thorough in the examination ask lots of questions and gave me options To choose from

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September 17, 2020

5.0

Friendly and ask lots of questions

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September 14, 2020

5.0

As I said he answered all of my concerns.

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September 14, 2020

5.0

Everyone was very helpful and answered all of my concerns.

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September 14, 2020

5.0

Dr tosious he care about his patients he walk in to the room with a smile speak ask how is everything going do I have any questions for him just a wonderful doctor thank you for your concern

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September 14, 2020

5.0

He are concerned about his patients just a wonderful doctor keep up the good work you are the best

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September 14, 2020

5.0

Everyone was very nice and explained Everything well

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September 14, 2020

5.0

Tosiou is Awesome!

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September 14, 2020

5.0

Tosiou is KING!

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September 14, 2020

5.0

Very competent. Explains things well.

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September 14, 2020

5.0

All very excellent and professional.

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September 10, 2020

5.0

He is great

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September 10, 2020

5.0

Dr.Tosiou listens to every thing. He addresses all issues. The staff is kind and helpful

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September 10, 2020

5.0

Twice before

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September 10, 2020

5.0

Easy in and out

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September 10, 2020

5.0

DR T is great.

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September 09, 2020

5.0

Concern, listens. I have confidence in his ability.

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September 09, 2020

5.0

Total confidence in Dr Tosiou

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September 08, 2020

5.0

Patience, listens and very efficient

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September 08, 2020

5.0

He is the sweetest and kind doctor! He is also has time for you. He's the best!

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September 08, 2020

5.0

Dr. Tosiou helped my sister this past year. She came in from Indiana because she was getting nowhere with her doctors in Indiana. I was able to be in the room with as she saw Dr. Tosiou. She had excellent results following his medical orders. I knew from the get go, that if I ever needed a Gastro doctor he would be it.I saw Dr. Tosiou on September 2nd of this year, and I was very pleased. He gave me plenty of time and I never felt like he rushed the appointment. He is a very nice man and he makes you feel comfortable in the appt. I would recommend him without any doubt.

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September 08, 2020

5.0

I like the Northwestern system.

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September 06, 2020

5.0

If it wasn't for the personable professional help and care that I receive from Dr. Tosiou I wouldn't choose this gastro office.He doesn't make me feel rushed and like I'm on an assembly line.

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September 03, 2020

5.0

He was nice knowledgeable and explained everything

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September 03, 2020

5.0

I felt the cleanliness protocols were first rate. I saw the doctor 5 minutes after I got to the office so zero wait time

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September 03, 2020

5.0

Focused on the patient and listens with care and empathy. Takes decisive action.

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September 03, 2020

5.0

very concerned and friendly

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September 03, 2020

5.0

Quick response..when needed..helpful on line

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September 03, 2020

5.0

The doctor was Awesome. Explained everything in detail about the procedures I'm going to have. Took time to make sure I didn't have any questions or concerns.

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September 03, 2020

5.0

Friendly staff& they got he in right away.

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September 03, 2020

5.0

He is comforting

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September 03, 2020

5.0

I have been using Dr Tosiou for several years and he makes me feel comfortable

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September 02, 2020

5.0

I arrived at the wrong time and he accommodated me for an appointment and he didn't rush through it. Dr. Tosiou also asked me a lot of questions and explained what he was trying to discover by asking them. I received a thorough explanation on next steps that would be taken.

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September 02, 2020

5.0

Flexible staff, positive attitudes and were not rushed.

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September 02, 2020

5.0

Dr Tosiou sits and talks with me.His assistant sets him up for success by scheduling, communicating, and finding test results for reference.

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September 02, 2020

5.0

explains issues in detail and the treatment plan. Discusses what procedures need to be performed and what to expect.

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September 02, 2020

5.0

Professional demeanor, credible, treated with compassion.

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August 31, 2020

5.0

Very intelligent doctor.

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August 16, 2020

5.0

Dr Tosiou helped me 5 or 6 years ago when I first got sick. I was really sick and he helped me get better. Dr Tosiou has continued to help me live with this disease.

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August 16, 2020

5.0

Dr Tosiou is a great doctor.

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July 31, 2020

5.0

Dr. Tosiou took the time to explain my options to me. He has genuine concern and care for me.

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July 30, 2020

5.0

The doctor was very straightforward and very upfront with everything I would have to do.

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July 26, 2020

5.0

He is an amazing doctor.

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July 26, 2020

5.0

He was patient, kind, and informative

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July 26, 2020

5.0

Dr. Tosiou is attentive to the details. He doesn't overprescribe medications or procedures, but is level headed on what the next step is. He has always warmly greeted me and made me feel as if I mattered as a person, not just another patient.

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July 23, 2020

5.0

I've had Dr. Tosiou as my GI doctor from my first issue, over 10 years ago and from the first day he was caring, he listened, examined the issues thoroughly and made me feel I was in the best hands possible. I was fortunate to have found him via my sister, who has been his patient for 20 years. I'm very thankful to have him as my GI.

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July 22, 2020

5.0

Dr. Tosiou is very thorough and comes highly recommended.

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July 22, 2020

5.0

Knowledge, interest in patient concerns.

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July 20, 2020

5.0

Good visit with Dr. Tosiou. Doctor was attentive and caring.

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July 12, 2020

5.0

He was very professional

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July 10, 2020

5.0

He is one of the better doctors I've had and was personable. He also got straight to the point and was listening to all the issues that I had wrong with me.

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July 10, 2020

5.0

always very consistent medical and personal care and attention

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July 10, 2020

5.0

Dr Tosiou is a good listener and allows me to explain what is going, then he'll ask a few questions, and come up with a plan of action. He explains everything quite well.

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July 08, 2020

5.0

Efficient and knowledge

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July 08, 2020

5.0

Dr Tosiou was very through and listened carefully to what I had to say

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July 03, 2020

5.0

He was very nice

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July 01, 2020

5.0

Competence, diligence, ability to communicate.

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June 30, 2020

5.0

Very easy to talk to.

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June 29, 2020

5.0

Very professional, personable, courteous interactions from all staff I met with, especially Dr. Tosiou. He instilled confidence and made me feel feel well cared for and he listened to any concerns I had. I would highly recommend to friends!

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June 25, 2020

5.0

He is thorough

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June 25, 2020

5.0

He is extremely personable and lays it out as it is. He gives you many options and gives you the pros and cons of each. I was quickly seen in his office and was in and out in a timely fashion.

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June 22, 2020

5.0

Dr. Tosiou made me feel like they were really listening to me. I didn't feel rushed.

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June 15, 2020

5.0

Really pleasant and gave me a lot of options. Was interesting to talk to and explained everything well. I walked out feeling that he helped me make a logical decision on what the next move should be.

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June 11, 2020

5.0

The office was pleasant , on time, and the doctor spent a lot of quality time with me.

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June 11, 2020

5.0

Dr. Tosiou was friendly, listed to me and answered my questions. He explained my procedure and the precautions they take during covid.

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June 11, 2020

5.0

I felt like he listened to me and took the time to ask me questions and wait for my answers.

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June 10, 2020

5.0

He was friendly and made you feel very comfortable.

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June 10, 2020

5.0

Dr. Tosiou explained procedures and options in a way that I was able to understand

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June 10, 2020

5.0

Very thorough

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June 05, 2020

5.0

Extremely professional and dedicated to his profession.

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June 05, 2020

5.0

Service above and beyond what I expected..Dr. Tosiou is fantastic!

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June 03, 2020

5.0

Doctor is very respectful,intelligent and knowledgeable.I am his long time patient and never have any complaints.

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June 03, 2020

5.0

Taking excellent care of their patients .

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June 03, 2020

5.0

Just satisfied with him as my Doctor.

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