David Armstrong, DO

Cardiology

(551) 996-9250

doctors.hackensackmeridianhealth.org

4.9 out of 5

386 verified ratings

386 Ratings, 77 Comments


The following ratings and reviews are based on verified feedback collected from independently administered patient experience surveys. The ratings and comments submitted by patients reflect their own views and opinions. Patient identities are withheld to ensure confidentiality and privacy.
Jun 10, 2026
Dr Armstrong is so positive and caring. He always takes his time with me and addresses my concerns and answers all my questions.

May 25, 2026
I would definitely recommend

May 18, 2026
Accessible, friendly staff.

Apr 29, 2026
THANKS

Apr 27, 2026
Service was on time and very clear about test results

Apr 20, 2026
I would Totally recommend Doctor Armstrong

Apr 17, 2026
pleaseant

Apr 16, 2026
I have stated it all. I am very happy with the care given by Dr. Armstrong and his staff.

Apr 14, 2026
The doctor took his time

Apr 1, 2026
I already have recommended Dr.Armstrong to many friends and family.

Mar 31, 2026
Professional and caring doctor and staff

Mar 31, 2026
Dr. Armstrong is very personable but also very professional and direct.

Mar 27, 2026
One of the best I have ever met!

Mar 12, 2026
I feel very fortunate to have Dr. Armstrong as a physician. I know that I'm in good hands and have not one negative thing about him. Kudo's to the Doc.

Jan 22, 2026
Dr. Armstrong was excellent.

Jan 14, 2026
I feel like I received a personal service

Jan 13, 2026
I recommended friend to Dr. Armstrong and he wats very happy I did so.

Jan 13, 2026
Doctors that are absolutely concerned about their patients welfare

Dec 22, 2025
I thought it was very, very good and I think this doctor is fabulous, very good. Thank you.

Dec 18, 2025
Dr. Armstrong is definitely a great doctor. He is very knowledgeable and definitely has a great bedside manner. I would recommend him. He's very, very, very friendly, definitely smart, definitely a great doctor. Thank you.

Dec 17, 2025
Dr. Armstrong is very attentive to our well being he listens to our questions and explains everything we need to know in detail. I feel that he has our best interest at heart.

Dec 16, 2025
Dr. Armstrong is very professional and polite. He makes sure you understand everything about your health situations before you leave his office. He always starts the visits with what we spoke about at our last meeting to make sure I've been diligent in taking care of myself. His staff is pleasant and knowledgeable. The offices are clean and comfotable.

Dec 15, 2025
Dr. Armstrong is knowledgeable and listens with care to your concerns. He makes the patient feel comfortable about asking questions and answers them in a way that you can understand. You never feel rushed. My husband and I feel so privileged to have such a great doctor. He really cares about his patients!

Dec 15, 2025
Dr. Armstrong is easy to talk to and listens to everything you have to say. He is kind and understanding. A pleasant experience and I would highly recommend him to anyone.

Dec 5, 2025
Very warm and caring

Dec 2, 2025
I think Dr. Armstrong is the best doctor I've ever been to. He was great in every way. He was absolutely great in every way. And I'll recommend him and I've already recommended him to a lot of people. And I really mean that.

Dec 2, 2025
Hi, Dr. Armstrong is caring, concerned, polite, knowledgeable. I can't say enough good things about him, as well as he is a lovely human being. I am so appreciative to be under his care. Thank you.

Dec 1, 2025
Dr Armstrong is beyond fantastic. He has me up and moving in order to better improve my heart health. He listened to all my concerns, answered all my questions and took his time with me. I HIGHLY recommend Dr Armstrong to anyone who needs cardiac services.

Nov 24, 2025
Great visit. Office much improved to deal with also.

Nov 21, 2025
It was thorough and informative.

Nov 20, 2025
Knowledgeable doctor, wonderful staff that's accommodating and easy to communicate with. Dr. Armstrong is a wonderful communicator. I can't say enough good things about this practice. One of the best I've ever been to.

Nov 19, 2025
Dr. Armstrong and his team are very helpful, very courteous, and very attentive to my visits, and I really appreciate that.

Nov 19, 2025
He is a fantastic doctor. He explains things to you so pleasantly and so nice. And even if you have to wait long, it's worth it. He's worth everything he does. Thank you.

Nov 12, 2025
Very thorough, concerned for my well-being, Dr Armstrong is thorough and reviewed all issues in detail

Nov 7, 2025
I was a patient of Dr. Armstrong's. Very, very happy with him. He is very patient. He understands your needs. He sits and he listens to you and he answers all your questions as asked. Very pleasant. I would recommend anyone to him. I feel if I had a problem, I know I could count on him. Again, I would recommend him to anyone. My husband and I both go to him.

Nov 6, 2025
Over the past years I've had a positive experience with Dr. Armstrong. He treats me as if I was his only patient. He shows concern for my concerns and gives good explanations about my heart.

Nov 3, 2025
As soon as I had my heart attack, Dr. Armstrong was right by my bedside, explained everything to me, didn't leave my side. I knew about him from other people. I knew about him from my coworkers, but I never met him. But the day that I met him was the day that I needed him, and he has not left me yet. He explains everything. He goes through all my medications. He let me know what's going on from A to Z like he's the best. There's no one better. I am so happy that I met him and I had him as my doctor. He's my doctor now. I love him.

Oct 29, 2025
I think Dr. Armstrong is great, very professional, gives you the time, answers all your questions, and I have it, and I recommend him all the time. As far as the staff, I think they need a little more polish in terms of dealing with the patients and allowing them or advising them as why they're waiting in the lobby and keeping them up to date on why the appointment is running late. Other than that, I think Dr. Armstrong is a very good doctor. Thank you.

Oct 22, 2025
My doctor was very concerned. He makes me very comfortable and I appreciate all that he has done. God bless Dr. Armstrong and I will always, always be happy to go and see Dr. Armstrong. Thank you very much.

Oct 22, 2025
My husband and I are grateful for a Doctor like Dr Armstrong

Oct 16, 2025
Dr. Armstrong is a very thorough, courteous, and patient doctor. I am very impressed of his professional skills, as well as his office staff. I would definitely recommend this doctor to my family and friends. Thank you so much for everything. Have a blessed day. Goodbye.

Oct 16, 2025
I just want to say that Dr. Armstrong is one of the best doctors that I've seen. He's sympathetic, empathetic, kind, caring, and is very, very efficient and detailed on everything that he does. Amazing.

Oct 14, 2025
Dr David Armstrong is an amazing doctor. Gives me very positive vibes and discuses my health conditions in details. When I visit my Dr David he boosts my morals, Great person!

Oct 10, 2025
Yes, my encounter with Dr. Armstrong was a pleasant one. He thoroughly talked to me about what he had information on the computer about me. And we discussed several things. And he was very polite, very knowledgeable. And I definitely would recommend him to my friends because he was recommended to me by my friends.

Oct 10, 2025
Dr. Armstrong is an example of a great , compassionate and knowledgeable doctor! He's the best!

Oct 8, 2025
Visit was fine, just a long wait time with backed up patients. Doctors always seem to want to put you on more medication instead of reducing the medications you're on or changing to an alternative medication. Thank you.

Oct 7, 2025
Dr. Armstrong was absolutely fantastic, very helpful, attentive, can't say enough good things about him.

Oct 2, 2025
Friendly front staff and reception. Very little wait time in the waiting room. Doctor was very friendly, warm, caring, concerned, informative, intelligent, gentle, and made me very comfortable here.

Sep 30, 2025
Waited over 1 hour in an examination room waiting for the Dr.. Office was backed up so of course Dr. was behind schedule. Compared to my previous visits this appointment seemed rushed. My medications were changed but I did not receive any information while checking out after my visit. I had to call back to confirm the change. No fault of the Dr. but I believe I should have had a better office visit, this visit was not up to par for Dr. Armstrong.

Sep 25, 2025
Dr Armstrong is one of the few doctors who actually listens and makes eye contact when patient speaks