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Douglas L. Ambler, MD

5.0

1980 ratings Read Reviews

Northwestern Medicine Regional Medical Group

Primary Specialty

Internal Medicine

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Practice Focus Areas

This medical professional has a particular interest or expertise in:

Cancer Screening
Cholesterol Management
Chronic Disease Management
Comprehensive Primary Care
Diabetes
Heart Disease Prevention
Hypertension
Preventive Medicine

Education

Medical Education:: MD, Loyola University Stritch School of Medicine - 1995
Residency:: McGaw Medical Center of Northwestern University - 1998

Board Certifications

American Board of Internal Medicine - Internal Medicine (Certified)

Faculty Profile

Clinical Instructor, Feinberg School of Medicine

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Practice Groups and Affiliations

Medical Group:: Northwestern Medicine Regional Medical Group
Alignment Category:: Northwestern Medicine Physician Network
On Medical Staff At:: Central DuPage 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

5.0

5.0

1980 Ratings

Reviews from Patients

100 Most Recent Reviews

Reviews from Patients

100 Most Recent Reviews

February 27, 2026

5.0

Very professional. Takes adequate amount of time to answer my questions.

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February 27, 2026

5.0

Dr. Ambler takes the time to listen to my concerns & offer suggestions.

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February 26, 2026

5.0

Dr. Ambler always listens and gives excellent advice.

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February 26, 2026

5.0

His or family doctor more than 20 years he's very friendly. He's very very good doctor.

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February 23, 2026

5.0

He is thorough, he is great at explaining things and has excellent bedside manner

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February 23, 2026

5.0

He is like a father!!

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February 23, 2026

5.0

He is patient, kind and listens well!

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February 21, 2026

5.0

He's the best!

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February 19, 2026

5.0

Spends time with me, goes over everything in detail.

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February 19, 2026

5.0

Dr Ambler guides my healthcare with an understanding of my personal needs and concerns in a very respectful manner. He listens attentively and answers my copious questions. I can place my trust in his opinions.

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February 19, 2026

5.0

He is a fantastic Dr. Always in a positive mood

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February 16, 2026

5.0

Friendly and compassionate and very knowledgeable.

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February 16, 2026

5.0

Because he is the best!

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February 13, 2026

5.0

Long time relationship with Dr. Ambler providing excellent medical care and advice.

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February 05, 2026

5.0

Great Doctor& staff

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February 04, 2026

5.0

He is knowledgeable, personable, up to date, willing to take the time to talk.

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February 02, 2026

5.0

Dr. Ambler takes the time and is always knowledgeable.

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February 02, 2026

5.0

Very knowledgeable

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January 29, 2026

5.0

Dr. Ambler is an excellent physician. In addition to his medical expertise, his care for his patients is always evident. I trust him a great deal.

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January 29, 2026

5.0

He is very even tempered and kind, careful to provide pros and cons of treatments, vaccinations, always open to questions and thorough.

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January 27, 2026

5.0

none better

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January 26, 2026

5.0

Doug has been my primary care physician for many years. He's knowledgeable and caring.

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January 26, 2026

5.0

Excellent listener and communicator. Visits are thorough and unrushed.

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January 26, 2026

5.0

Smart, listens, normal & promotes confidence in treatment plan.

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January 26, 2026

5.0

The best!

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January 24, 2026

5.0

Dr. Ambler spends time getting to know his patients and visits never feel rushed. He cares about each person, not just their ailments.

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January 22, 2026

5.0

Answered all my questions and recommended some therapy. Northwestern Memorial called today to schedule it.

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January 20, 2026

5.0

A great doctor. Always informative and always ready to listen.

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January 19, 2026

5.0

Dr Ambler is a fabulous doctor. Very detailed and explains things very well.

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January 19, 2026

5.0

No one better

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January 17, 2026

5.0

We have had Dr Ambler as our primary doctor for over twenty five years. We are most pleased with Dr Ambler's approach to our health needs.

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January 16, 2026

5.0

He puts you at ease, is thorough and takes his time with you.

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January 16, 2026

5.0

Dr. Ambler is very friendly and puts his patients at ease during the visit and examinations. He also is very thorough with his examinations.I would recommend his services to others.

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January 16, 2026

5.0

Dr Ambler has been my doctor for well over 20 years. He is personable, professional and provides great medical insights into my situation that have been invaluable in my life. The most genuine doctor I have met. Anyone would be fortunate to have him in their corner.

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January 13, 2026

5.0

Dr Ambler is very caring and really listens. His nurse Janet is the best!

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January 13, 2026

5.0

I was explained everything treats me great seems to really think about my health. He's the best.

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January 09, 2026

5.0

Dr. Ambler and his staff Rock.

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January 06, 2026

5.0

Professional, knowledgeable and caring

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January 05, 2026

5.0

He's thorough

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January 05, 2026

5.0

Dr. Ambler is so thorough, he covers everything with great explanations. I feel like he hears what I have to say about concerns & always looks to answer all my questions.

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January 05, 2026

5.0

Checks most all things on my chart

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January 02, 2026

5.0

Kind patient

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December 19, 2025

5.0

Superb internist. Attends to every detail.

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December 17, 2025

5.0

Knows what he is talking about. Explains everything.

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December 16, 2025

5.0

He's just the best all-around Doctor I've ever seen! He's patient, and kind, and smart and has perfected the doctor-to-patient interaction.

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December 15, 2025

5.0

A great experience, all around...

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December 15, 2025

5.0

Friendly, answered questions

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December 15, 2025

5.0

He listen to my concerns and addressed them.

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December 12, 2025

5.0

Handled all my questions with care!

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December 08, 2025

5.0

Very kind and friendly

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December 04, 2025

5.0

Thorough, very caring easy to communicate with.

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December 04, 2025

5.0

Very thorough, happy to discuss all issues

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December 04, 2025

5.0

Very down to earth, personable and knowledgeable

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December 01, 2025

5.0

Great knowledge, insights, and terrific guidance

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November 25, 2025

5.0

Dr. Ambler is an outstanding doctor. He has been very thorough in his assessments of my various medical issues, and highly knowledgeable. He seems truly caring about my health offers excellent recommendations, and answers my many questions. I am most grateful and blessed to be one of his patients.

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November 21, 2025

5.0

Knowledgeable and attentive

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November 20, 2025

5.0

Professional, polite, excellent listener, up to date

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November 17, 2025

5.0

Dr. Ambler takes the time to understand the patient's concerns and provide multiple solutions to whatever is the issue.

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November 15, 2025

5.0

Dr. Ambler is kind and thoughtful. He only works part time.

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November 13, 2025

5.0

Dr. Douglas Ambler has been our primary doctor for long time, always delivered great care to our health needs !!!!

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November 11, 2025

5.0

Dr Ambler passionately cares about his patients. He spends time getting to know them and pays extraordinary attention to their cares and concerns. He is an excellent diagnostician and his care of plans are personally created for the individual with caring follow up. He is a superb educator.

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November 11, 2025

5.0

He is thoughtful with his recommendations for medical care. He presents a concrete plan for moving forward. Very professional.

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November 08, 2025

5.0

Dr. Ambler is knowledgeable, caring and a has always had a unique ability to explain our health care issues. We are fortunate to be under his care!

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November 07, 2025

5.0

He listens to me, provides detail explanations to questions

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November 06, 2025

5.0

He is very thorough and listens well. Great Doctor!

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November 06, 2025

5.0

Dr. Ambler addressed all my medical problems. He answered all my questions. He provided excellent advice and counseling in management of medical problems.

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November 05, 2025

5.0

Dr Ambler is very personable, encourages questions, does not rush his appointments, and is thorough in reviewing test results.

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November 05, 2025

5.0

Kindness, genuine interest, un-rushed attitude, thoroughness, and making sure there were no other problems/questions than what brought me to the office that day.

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November 04, 2025

5.0

Dr ambler is all you want in a primary care doctor and then some! NM is lucky he's part of their team!

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November 04, 2025

5.0

Excellent physician! Fastidious in his care.

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November 04, 2025

5.0

I trust him.

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November 03, 2025

5.0

Very knowledgeable and very professional

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November 03, 2025

5.0

He is simply the best doctor I have ever had. He is able to diagnose an answer to all my medical concerns with compassion , knowledge, and thoroughness

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November 03, 2025

5.0

He is incredibly thorough and compassionate in assessing our needs

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November 02, 2025

5.0

I get my questions answered and feel confident in Dr. Ambler and comfortable in discussing medical situations with him.

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October 31, 2025

5.0

I have been a patient of Dr. Ambler's for more than 20 years. He and his staff have always been very caring and provided excellent care. Dr. Ambler is an excellent physician.

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October 31, 2025

5.0

Extremely knowledgable and caring of patients

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October 31, 2025

5.0

Dr Ambler is one of the best! He always takes time to listen, insightful and informative about your health.

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October 30, 2025

5.0

Dr. Ambler is one of the best doctors I've ever had. He is always kind and pleasant and willing to explain every detail, no matter what the problem is. He spends Wednesday mornings at the retirement community where I live, so it is very convenient to see him when I need to.

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October 30, 2025

5.0

He's simply the best. Dr. Ambler has been my PCP for 25 years.

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October 28, 2025

5.0

He is always compassionate and takes time to answer questions.

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October 28, 2025

5.0

He listens really well and does not underreact or overreact. He is super competent and also is good about communicating his knowledge.

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October 27, 2025

5.0

Dr. Ambler is simply the best! Outstanding, insightful, comprehensive diagnosis and makes you feel totally comfortable and cared for and given all the time needed

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October 20, 2025

5.0

Dr. Ambler is patient, thorough explaining everything and has a very pleasant and welcoming demeanor.

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October 16, 2025

5.0

knows a lot about medicine

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October 13, 2025

5.0

Because he cares and doesn't rush when you are in to see him and have multiple questions.

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October 13, 2025

5.0

Doctor Ambler has been my family physician for over 40 years. He has knowledge and compassion.

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October 08, 2025

5.0

Patient caring explains well

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October 07, 2025

5.0

He listens

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October 06, 2025

5.0

Thorough, interested in my issues and give me the time to answer my questions and listen to my concerns.

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October 06, 2025

5.0

Very Competent and attentive Dr. He makes time to answer every question and he is gifted at interpersonal reations.

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October 06, 2025

5.0

Always extremely knowledgeable and takes the time to have a comprehensive discussion. Professional yet personable.

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October 06, 2025

5.0

I trust Dr. Ambler explicitly. Janet is great!

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October 03, 2025

5.0

Patient. Informed. Collaborative care.

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October 03, 2025

5.0

Best Dr we ever had

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October 02, 2025

5.0

He listens to my concerns and is available locally himself and via his RN by video conference.

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October 02, 2025

5.0

Dr. Ambler is the best! He's knowledgeable, professional, caring and willing to listen. His medical assistant Janet is also outstanding. What a first class team!

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October 02, 2025

5.0

Dr Ambler was knowledgeable, professional & my health was foremost in our discussions during my appointment.

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September 29, 2025

5.0

Takes his time, personable and friendly, highly competent

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September 29, 2025

5.0

Dr. Ambler was my father's doctor, my late husband's doctor, and has been my doctor for many years. He is so very special- sincerely concerned about each patient, not condescending, extremely knowledgeable, and very thoughtful and reassuring.

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Disclosures

Industry Relationships

Consulting

Faculty member and/or their immediate family have engaged in activities such as speaking, advising, consulting, or providing educational programs for the following companies or other entities

Wynscape Nursing & Rehabilitation Center

Board of Directors

Faculty member and/or their immediate family served in a fiduciary capacity, such as a board member/director, officer, or trustee, for the following companies or other entities

Wynscape Nursing & Rehabilitation Center

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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HealthBeat

What Is an Advanced Practice Provider and Why Should You See One?

Learn what APPs can do for your health.

Flu: Who Is Most at Risk?

Certain groups have a higher risk of hospitalization or death.

How Do Continuous Glucose Monitoring Systems (CGMS) Work?

And should you get one?

More HealthBeat Articles