Alexander S. Mortensen, MD, MPH | Northwestern Medicine

Education

Medical Education:: MD, Central Michigan University College of Medicine - 2022
Professional Education:: MPH, University of Michigan School of Public Health - 2018
Residency:: Mayo Clinic College of Medicine and Science (La Crosse) - 2025

Board Certifications

American Board of Family Medicine - Family 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:: Northwestern Memorial 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

106 Ratings

Reviews from Patients

33 Reviews

Reviews from Patients

33 Reviews

February 23, 2026

5.0

Knowledgeable, smart, realistic, relatable.

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February 19, 2026

5.0

Intelligent, professional and dedicated physician

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February 16, 2026

5.0

The doctor listened attentively, asked many clarifying questions, and tried to help me remember and formulate what I should have already explained. He gave comprehensive recommendations and explained all his conclusions. He relies on data, not on what the cocaine-fueled Minister of Health relies on.

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February 16, 2026

5.0

He explained in a way I could understand. He also asked a question no other doctor has ever asked and this was his first time meeting me.

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February 16, 2026

5.0

Knowledgeable, smart and caring.

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February 06, 2026

5.0

Confident, knowledgeable, and relatable doctor.

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February 05, 2026

5.0

He was caring and worked with me to figure out what was going with me. He didn't leave me out but took his time to explain to me what was going in my ear.

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February 03, 2026

5.0

Very caring doctor. You will not always find that.

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January 30, 2026

5.0

Appointment was on time and doctor was thorough.

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January 29, 2026

5.0

Very kind and listening doctor; I like his care.

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January 26, 2026

5.0

Listens, responds, interested.

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January 19, 2026

5.0

Took his time with my appointmentkind, listened, did not rush me, was thorough and initiated the right follow up with X-ray and ortho

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January 12, 2026

5.0

Dr. Mortensen was great. Really personable and happy to explain things to me. I really felt like he was focused on setting me up for my best health outcomes

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December 31, 2025

5.0

He listens he is so kind and easy to talk to. One of the best primary care out there.

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December 23, 2025

5.0

His patience.

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December 16, 2025

5.0

Dr Mortensen is a great doctor. He will be one day one of the best doctors in the country.

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December 11, 2025

5.0

dr. Mortensen engaged with me and answered all my questions. Provided options and recommendations was never heavy-handed in his medical advice. also was very efficient in getting my medication's and referrals made which was wonderful.

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December 08, 2025

5.0

Dr. Mortensen exceeded expectations in every way. He combines deep medical expertise with genuine empathy, communicates clearly, and never rushes the appointment. He creates a safe, supportive environment where patients feel heard and respected. His dedication, attention to detail, and reassuring manner make him a truly outstanding physician.

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December 08, 2025

5.0

Attentive and holistic in considering my needs

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December 08, 2025

5.0

He was nice, patient & thorough.

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November 29, 2025

5.0

The doctor was very patient, understanding, and answered all my questions and concerns.

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November 25, 2025

5.0

Take all the time in the world to understand patient and their problems

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November 24, 2025

5.0

Good listener, gives thorough explanations, allows for shared decision making

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November 24, 2025

5.0

Very thorough and knowledgeable, and friendly!

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November 18, 2025

5.0

Easy to talk with, helpful and not judgmental. Made me feel comfortable.

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November 07, 2025

5.0

He brought me in as a follow up to some abnormal labs and was very thorough. He is very approachable.

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November 03, 2025

5.0

Answered all my questions and took time to explain my concerns.

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October 31, 2025

5.0

Very attentive and really dove into the details of what I was dealing with and came up with multiple solutions and options for a treatment plan

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October 28, 2025

5.0

Doctor was wonderful. Great choice for primary care physician

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October 27, 2025

5.0

The doc was excellent - top notch in every way. Attentive and really consultative.

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October 24, 2025

5.0

Kind, professional, thorough, good listener, takes time to make a plan to support your concerns.

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October 16, 2025

5.0

He really takes his time with you and is very patient.

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October 13, 2025

5.0

Best doc visit I have had ever. Sat with me for literally an hour and addressed all of my concerns. so nice

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Disclosures

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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