Leslie C. Grammer, MD

Leslie C. Grammer, MD

4.8 
840 ratings  Read Reviews
Northwestern Medicine logoNorthwestern Medical Group

Primary Specialty

Allergy and Immunology

Is your insurance accepted? Select plan

Practice Focus Areas

This medical professional has a particular interest or expertise in:

Education

Medical Education:
MD, Northwestern University Feinberg School of Medicine - 1976
Residency:
McGaw Medical Center of Northwestern University - 1979
Fellowships:
McGaw Medical Center of Northwestern University - 1980

Board Certifications

  • American Board of Allergy and Immunology - Allergy & Immunology (Certified)
  • American Board of Internal Medicine - Clinical & Laboratory Immunology (Certified)
  • American Board of Internal Medicine - Internal Medicine (Certified)
  • American Board of Preventive Medicine - Occupational Medicine (Certified)

Faculty Profile

Professor Emeritus, Feinberg School of Medicine

View Faculty Profile

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.

Read Ratings FAQs

Overall Rating

4.8
4.8 

840 Ratings

Reviews from Patients

47 Reviews

Reviews from Patients

47 Reviews

April 26, 2025

5.0

She was kind and took the time to sit down with me and explain the process, etc.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

April 21, 2025

5.0

Answered my questions.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

April 01, 2025

5.0

Dr. Grammer is very knowledgeable

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

March 27, 2025

4.0

I only talked with her briefly. However, her MA was very thorough and spent quite a bit of time gathering information.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

March 27, 2025

5.0

I have been seeing Dr. Grammer for years. She is great. Wonderful beside manner, discusses options, actually listens to what the patient is reporting and not all doctors do. Knows her stuff. Wonderful doctor. I trust her.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

March 17, 2025

5.0

She is an excellent asthma doctor who is very responsive to patients concerns and needs. I have received excellent care for my asthma from Dr. Grammer for over 25 yrs.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

March 14, 2025

5.0

Empathetic. Thorough kind

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

March 14, 2025

5.0

Kind. Empathetic Thorough

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

March 14, 2025

5.0

She is so knowledgeable and always listens and answers my questions.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

March 13, 2025

5.0

Dr. Grammer is superb. After checking for progress, she was very sure I understood the explanation of her treatment and meds and answered my concerns.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 28, 2025

5.0

Patient, doesn't make you feel rushed, very skilled, proactive, she listens to what you have to say. Very knowledgeable

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 28, 2025

5.0

Great doctor.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 25, 2025

5.0

Dr Grammer was very warm and friendly. She really listened to my concerns. She spend the right amount of time with me and didn't jump into running tests right away.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 24, 2025

5.0

A thorough doctor.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 20, 2025

5.0

She is excellent and caring

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 16, 2025

5.0

I liked Dr Grammer. She was straightforward and intelligent

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 08, 2025

5.0

She was caring and smart. I appreciated her experience.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 06, 2025

5.0

Dr. Grammer made me feel better by explaining my symptoms and treatment. I love her expertise and I felt so lucky she assigned the fellow doctor, which I am sorry I forgot her name. It has an Sh..

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

February 01, 2025

5.0

They all were extremely professional, knowledgeable, patient and helpful, to whatever my needs were.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

January 25, 2025

5.0

Dr. Grammar has made a major difference in my life as I developed asthma in my 70s. She is a professional who is caring & works with my sinus Dr. so has a deep understanding of my chronic issues.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

January 21, 2025

5.0

Her office is very responsive. They get back to my messages right away. They have seen me through more than one emergency. In fact, when I had Covid in 2021 it was Dr Grammer's office that helped me navigate it, since the internist I had at the time didn't get back to me.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

January 07, 2025

5.0

Dr. Grammer listens and helps find a solution.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

January 04, 2025

5.0

Attentive and helpful.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

January 02, 2025

5.0

Knowledgeable

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

December 15, 2024

5.0

She listened.

Was this helpful? Yes (1) No (0)

Thanks for your feedback!

December 09, 2024

5.0

She's a very informative, educational, and caring physician

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

December 04, 2024

5.0

Very professional with a open ear

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

December 04, 2024

5.0

Smart, informed, respectful.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

November 11, 2024

5.0

She listens well, explains her recommendations and discusses options.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

November 09, 2024

5.0

Dr. Grammer is knowledgeable, proactive, mand personable. This in my opinion makes a great physican.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

November 07, 2024

5.0

Responsive and willing to go the extra mile to make sure we address my issues. Also great at communicating with my chart. Esp Bridget, very helpful.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

November 06, 2024

5.0

After decades of her care-she is simply the best

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

November 04, 2024

5.0

Dr Grammer has been instrumental in getting my allergies under control.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

November 04, 2024

5.0

Dr Grammer had researched my problem before we met.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 31, 2024

5.0

Great medical advice, communication and interpersonal skills

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 19, 2024

5.0

Wonderful interpersonal skills, very knowledgeable, friendly, professional.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 15, 2024

5.0

Doctor Grammer was communicative and approachable

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 14, 2024

5.0

She is caring, efficient and well-informed.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 09, 2024

5.0

She's very thorough and asks you if she's missed anything before closing the visit out.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 07, 2024

5.0

She really went the extra mile to help me get tested. She was very caring and clearly well informed.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

October 01, 2024

5.0

Long experience with allergies

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

September 27, 2024

5.0

friendly and careful

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

September 26, 2024

5.0

I loved Dr. Grammer! She was sharp, thoughtful, and had a great bedside manner. She was quick but thorough in her work, and I found her to be quite funny!

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

September 17, 2024

5.0

Great. MD. Caring. Kind

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

September 17, 2024

5.0

They were very adamant about getting me help to not only deal with my allergies but treat them too.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

September 04, 2024

5.0

Excellent knowledgeable friendly service.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

September 03, 2024

5.0

She includes you in your care and treatment

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

Disclosures

Leslie C. Grammer, 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.