Respiratory Virus and Vaccine Information

Practice Focus Areas

This medical professional has a particular interest or expertise in:

Adult Medicine
Cholesterol Management
Chronic Disease Management
Comprehensive Primary Care
Health Education
Heart Disease Prevention
Hypertension
Preventive Medicine

Education

Medical Education:: MD, University of Illinois at Chicago College of Medicine - 1990
Residency:: Advocate Health Care (Advocate Lutheran General Hospital) - 1993

Board Certifications

American Board of Internal Medicine - Internal Medicine (Certified)

Faculty Profile

Clinical Assistant Professor, Feinberg School of Medicine

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Practice Groups and Affiliations

Medical Group:: Northwestern Medical Group
Alignment Category:: Northwestern Medicine Physician Network
On Medical Staff At:: Catherine Gratz Griffin 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

1307 Ratings

Reviews from Patients

100 Most Recent Reviews

Reviews from Patients

100 Most Recent Reviews

February 27, 2026

5.0

Very professional. Answered all my questions. Very knowledgeable, patient and helpful. Excellent physician.

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February 14, 2026

5.0

Could not be happier.

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February 13, 2026

5.0

Dr. Seiden Most likely just saved my life! Need I say more?

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February 09, 2026

5.0

He's extremely thorough and very kind to everyone.

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February 03, 2026

5.0

He knows what he is doing and he cares. Idk what u r going to do when he retires. Hopefully ill be in the executive health department by then

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January 29, 2026

5.0

The best doctor I have come across

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January 27, 2026

5.0

Doctor Seiden, just by being himself, saved my life, (in spite of myself) 48hours ago. Dr. Seiden has years and years of knowledge under his belt. His instincts are right on target. He actually cares, if we live or die. And if we listen to his advice, he wants us to be able to live long and healthy. He has a way of getting into, not only your mind, but defiantly into your heart as well. It's not just a job for him, it's a real sense of "teamwork", you, Doctor Seiden, science, listening to his advice, and most of all, being willing to work hard on your own behalf. It's no wonder, why he is not taking on any more patience, at this time. Thanks, Doc!!!

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January 24, 2026

5.0

Helpful care and advice.

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January 18, 2026

5.0

Always thorough and personable.

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January 14, 2026

5.0

Very thorough, takes time with you and explains everything! Love him!

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January 13, 2026

5.0

Dr. Seiden always gives the needed time to review my health history and updates my current health status. He is very patient and professional. He always seeks the reasons for my current health conditions. He communicates with my other healthcare providers. He does a wonderful job of coordinating my health care.

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January 06, 2026

5.0

hard working, does a great job

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January 06, 2026

5.0

Doc is the Best ! He listened to me, speaks in real language that is easy to understand.

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December 24, 2025

5.0

Dr. Seiden has been my primary physician going back to his North Shore Evanston Hospital affiliation. He is the reason that I am a Northwestern patient. He is thorough, checks the medical history and medications each appointment. He answers all questions, raises points and his explanations are understandable.

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December 23, 2025

5.0

He took care of me.

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December 22, 2025

5.0

He is always thorough. He looks after me very well.

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December 15, 2025

5.0

He is very personable and takes an active interest in your life. I would highly recommend him.

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December 15, 2025

5.0

He looks at every single thing.

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December 11, 2025

5.0

Thorough questioning and willingness to dig deeper.

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December 09, 2025

5.0

Again - his competence & concern for his patients

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December 08, 2025

5.0

Very thorough

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December 08, 2025

5.0

Good and caring doctor

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December 05, 2025

5.0

Excellent physcian who really cares about his patients.

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December 04, 2025

5.0

Dr. Seiden is professional, practical, knowledgeable, a good listener and pleasant to work with. His support staff is well trained and competent.

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December 02, 2025

5.0

Thorough, phenomenal chair side approach, kind, considerate, never in a rush. Let's just say they don't come finer than this

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December 01, 2025

5.0

Knowledgeable friendly

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November 22, 2025

5.0

Excellent doctor providing great medical care.

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November 20, 2025

5.0

One of the best ,if not the best MD .He is caring,very pleasant ,very knowledgeable with all the newest treatment modalities in Internal medicine.

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November 19, 2025

5.0

Very good at follow up and competent. He cares about his patients

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November 12, 2025

5.0

Very thorough, professional,and personable.

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November 10, 2025

5.0

Thorough, friendly and professional

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November 07, 2025

5.0

He listens and follows up.

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November 06, 2025

5.0

Carrying and thorough

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November 06, 2025

5.0

Fast, efficient and a great practitioner

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November 05, 2025

5.0

He's Good and I Like Him.

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November 04, 2025

5.0

Practical. Has empathy. Easy going

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November 04, 2025

5.0

Listens, understands and cares for wellbeing.

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October 31, 2025

5.0

Very thorough and professional.

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October 30, 2025

5.0

Professional, informative and always on time.

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October 30, 2025

5.0

Fabuloso. A great doctor. He is 'consistently persistent' in giving his patients the very best care.

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October 28, 2025

5.0

Focused, knowledgeable sharing

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October 28, 2025

5.0

Dr Seiden is thorough and very knowledgeable about conditions and meds and offers great guidance

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October 28, 2025

5.0

Very thorough!

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October 27, 2025

5.0

He is an excellet PCP and takes the time to diagnose and then develope a treatment plan.

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October 26, 2025

5.0

His attention to the patient. And his honest and direct opinions and next steps

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October 20, 2025

5.0

Excellent Physician great bed side manner. Top of his game.

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October 18, 2025

5.0

Listens

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October 14, 2025

5.0

Dr. Seiden is a remarkable physician

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October 10, 2025

5.0

Communicates very well. Takes time and listens

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October 08, 2025

5.0

Very professional and willing to take all the time needed to complete the annual physical.

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October 07, 2025

5.0

Very thorough and takes time to listen and answer my questions.

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October 07, 2025

5.0

Clearly smart, caring and thorough

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October 06, 2025

5.0

Keeps me on track, knowledgeable and thoughtful

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October 06, 2025

5.0

Amazing take all the time to listen and advice.

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October 04, 2025

5.0

Best Doc.

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October 02, 2025

5.0

Caring, smart, takes his time with you

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September 27, 2025

5.0

Knowledgeable professional Easy to understand his diagnosis..

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September 26, 2025

5.0

I have complete confidence in Dr. Seiden. The entire staff was great.

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September 23, 2025

5.0

He is among the best!

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September 23, 2025

5.0

Great doctor, listens to you attentively and provides solutions to your particular situation

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September 23, 2025

5.0

Excellent doctor. Very thorough.

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September 18, 2025

5.0

Has your best health care. Advise,always listen without hurrying.

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September 17, 2025

5.0

Because I like this Dr Seiden and his great staff of nurses

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September 15, 2025

5.0

Listens to me and provides practical (and of course medically correct) feedback.

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September 09, 2025

5.0

Excellent primary care doctor. He is always on top of my problems.

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September 09, 2025

5.0

Dr Seiden is excellent and takes as much time as is required for thorough service and care

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September 08, 2025

5.0

He's kind, detailed and thorough

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September 06, 2025

5.0

Very responsive when I needed a quick virtual appt and addressed my issue very quickly

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September 02, 2025

5.0

Open honest and on the ball with my health care

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August 30, 2025

5.0

Learning a lot about how Medicare works. Dr Seiden is really easy to talk and concerned with my health.

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August 29, 2025

5.0

He helped me get in to see specialists that would take months to schedule. He is very thorough and good humored.

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August 27, 2025

5.0

Personable and thorough

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August 19, 2025

5.0

Very knowledgeable. Patient. Thorough. Pleasant person.

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August 12, 2025

5.0

I feel very comfortable with his knowledge and the medication that he has suggested to help control and reduce my symptoms. I am pleasantly surprised with my results.

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August 07, 2025

5.0

I've been a patient of Dr Seiden since he started out He's one of the finest physicians ever He's very thorough and explains everything and takes his time to explain You can tell he really cares about the welfare of the patient

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August 04, 2025

5.0

A wonderful doctor. Very thorough.

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August 04, 2025

5.0

Dr Bill Seiden is old school, responsible, careful, detailed, friendly and articulate. His experience and overall intelligence makes one feel ok... Can't ask for more than that. Thanks Dr Seiden!

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August 03, 2025

5.0

good listener

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July 30, 2025

5.0

He takes time to ask questions and listen, I don't feel rushed.

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July 29, 2025

5.0

Dr Seiden is thorough. He listens. He doesn't rush me. I'm celebrating my 79 birthday and have had several Doctors throughout those years and he is the best.

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July 29, 2025

5.0

He is very knowledgeable doctor and gives you the stats when it comes to weight loss and how it lowers risk for all health issues He stays on top of things and provides reminders at each visit

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July 29, 2025

5.0

Since I have him. Like my primary doctor my health has been way. Better. Thanks

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July 25, 2025

5.0

Dr Seiden is an amazing physician. So lucky to have him on my team.

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July 22, 2025

5.0

very competent excellent communicsgion

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July 22, 2025

5.0

Personable and professional service. Always look forward to my visits with him.

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July 16, 2025

5.0

Dr. Seiden takes time with his patients and understands their concerns.

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July 15, 2025

5.0

Dr. Seiden is awesome!! He is patient centered. I don't feel like just a number, I feel that he really listens and puts things in place to resolve any complaints. I'm really happy that he's my physician.

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July 15, 2025

5.0

Excellent knowledge and communication skills.

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July 14, 2025

5.0

Dr. Seiden is caring, proofessional, thorough, and constructive. He doesn't rush the appointment. I personally feel he is the best personal care physician I have encountered!

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July 14, 2025

5.0

Genuine care & concern.

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July 12, 2025

5.0

Dr. William Seiden is a thorough professional. He listens to patients and takes the necessary time to review all issues and answer patient concerns.

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July 09, 2025

5.0

Timely and thorough and spends a good amount of time with me. Considers issues carefully. He is a first rate physician.

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July 08, 2025

5.0

Dr. Seiden is knowledgeable and motivates me to make the needed changes to improve my health. He always gives me the time I need to ask questions to gather information and insights.

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June 27, 2025

5.0

Same as I said before he cares about the patients health.

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June 20, 2025

5.0

Because he takes as much time needed to listen and make sure all your health needs are covered

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June 12, 2025

5.0

Excellent doctor

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June 10, 2025

5.0

He is very knowledgeable and a good listener. great doc!!

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June 09, 2025

5.0

He knows his business. He double checks all faces of my life.

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June 06, 2025

5.0

Great doctor

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June 05, 2025

5.0

Good and caring doctor

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Disclosures

William B. Seiden, MD reported no external professional relationships for calendar year 2024.

External Professional Relationships

Pharmaceutical, device, and biotechnology companies frequently collaborate with basic scientists and physicians within an academic medical center to help advance science and improve patient care. These relationships are important in achieving scientific breakthroughs and in establishing the effectiveness and safety of promising new therapies. In order to assure objectivity in clinical research and patient care, the Northwestern University Feinberg School of Medicine (Feinberg), Northwestern Memorial HealthCare, Children's Hospital of Chicago Medical Center, and the Shirley Ryan AbilityLab have adopted integrity policies that require research and clinical faculty (in full-time, part-time, and unpaid/voluntary categories) to report compensated and uncompensated external industry relationships. Patients are encouraged to discuss these disclosures with their physician as well as to inquire as to how these relationships are overseen by Feinberg. To learn more about our Disclosure and Professional Integrity Policy, and the conflict of interest policies of our joint affiliate survey partners, please go to our Office for Regulatory Affairs Policies page.

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