Alexander Markov, MD
DIABETES/ENDOCRINOLOGY
20 Progress Point Parkway, Suite 200
O'Fallon, MO 63368 Directions
4.9 out of 5
289 verified ratings
289 Ratings, 106 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.
Apr 22, 2026
What else would you like to say about your experience?
Everything was great
Apr 20, 2026
What else would you like to say about your experience?
Dr. Markov is awesome!!
He really listens to patients and has such a vast knowledge of endocrinology. Highly recommend!
Apr 18, 2026
What else would you like to say about your experience?
Dr. Markov is always attentive and personable.
Apr 13, 2026
What else would you like to say about your experience?
Everyone was very accommodating and genuinely caring and kind. Also worked together very well. Top notch thank you
Apr 10, 2026
What else would you like to say about your experience?
Dr. Markov is always friendly and efficient. He takes the time to explain things until they are understood.
Apr 9, 2026
What else would you like to say about your experience?
Dr. Markov is great!
Apr 9, 2026
What else would you like to say about your experience?
Dr. Markov clearly explained what was going on with my body.
Apr 8, 2026
What else would you like to say about your experience?
Dr. Markov is always very kind, very personable, and I appreciate that he works with me and listens to the situations that I have and the questions that I have and concerns, and he's always willing to try new things and work with me.
Apr 7, 2026
What else would you like to say about your experience?
Very good doctor
Apr 1, 2026
What else would you like to say about your experience?
Dr. Markov and his staff were excellent. I'm so happy with how my visit went. He explained everything and made it easy to understand. I would highly recommend him and his staff.
Mar 31, 2026
What else would you like to say about your experience?
Dr. Markov has always been very approachable. He's very easy to talk to and he never makes me feel like I'm doing things wrong. He makes me feel like I'm absolutely doing my best and that I don't need to be a perfect number, but as long as we're on the good side and we keep improving, that's okay. And I don't have any anxiety when I come to see him or the facility. Everyone at the facility has always been courteous and kind and respectful. And this is one of the first providers I can say that I've met with that I felt completely comfortable with in telling him honestly what's happening in my life without feeling judged at all. And I appreciate that.
Mar 27, 2026
What else would you like to say about your experience?
Dr. Markov is a very special doctor. He treated me like a person, not just another patient. I have great respect for him.
Mar 26, 2026
What else would you like to say about your experience?
I had a very good visit with this Dr. I highly recommend Dr Markov, he’s pleasant to talk to, has very good bed side manners, which mean a lot from a person. This kind of Dr is hard to find. When a person does, hold on to them. Thank You Dr Markov and all the staff.
Mar 21, 2026
What else would you like to say about your experience?
Everyone was very Friday and welcoming. Dr Markov wAs one of the most attentive physicals I have encountered through the years.
Mar 20, 2026
What else would you like to say about your experience?
Great first experience. The doctor listen and worked with me to come up with a plan that makes me feel comfortable. I feel we are working through a plan of elimination or ruling things out, and that works for me.
Mar 20, 2026
What else would you like to say about your experience?
Great customer care
Mar 18, 2026
What else would you like to say about your experience?
Doctor Markov is a really good doctor.
Our first visit he took time to examine are previous history of Endocrinology.
He ask us question about of meds and health issues and made recommendations to help understand his patient care, and any changes to alternate meds to help with health issues. He was as my put a breath of fresh air.
Mar 14, 2026
What else would you like to say about your experience?
My doctor is exceptional. Very happy.
Mar 13, 2026
What else would you like to say about your experience?
The doctor and the nurse were very friendly and listened carefully. The doctor was very well prepared. He had reviewed my history in detail the morning of the visit. He was very competent and explained everything very clearly.
Mar 12, 2026
What else would you like to say about your experience?
Finally a diabetes doctor to explain clearly what to do for my husbands diabetes injections. Dr. Markov was pleasant and cordial, giving us his full attention.
Dec 20, 2025
Was there anything that you feel was outstanding?
Dr. Marvin is a very attentive doctor.. He helped me with some medical equipment, both the instillation and usage of it. Very much appreciated that.
What could have been done to improve your experience?
Nothing
Dec 19, 2025
Was there anything that you feel was outstanding?
Everyone was helpful
What could have been done to improve your experience?
Excellent care
Dec 18, 2025
What could have been done to improve your experience?
Nothing, everyone was very professional and courteous.
Dec 16, 2025
Was there anything that you feel was outstanding?
Staff and Dr very welcoming and professional.
Dec 10, 2025
Was there anything that you feel was outstanding?
Dr. Markov is truly exceptional. I’ve been his patient since 2023 after being referred for thyroid nodules, and he has consistently gone above and beyond for my care. He genuinely listens, cares about his patients’ health, and always makes sure I’m connected with the very best specialists when needed. I’ve always felt supported and in great hands with him. He is truly one of a kind.
Dec 10, 2025
Was there anything that you feel was outstanding?
Both doctor and nurse that saw me are wonderful every time I go in. Very personable and wonderful listening skills + very great at explaining things
What could have been done to improve your experience?
N/A
Dec 9, 2025
Was there anything that you feel was outstanding?
No
What could have been done to improve your experience?
There is anything I wont change at this point.
Dec 9, 2025
Was there anything that you feel was outstanding?
Dr Alex is well aware of my overall health. He directed me to a surgeon who was amazed Dr Alex found my adrenal gland issue before it caused major issues to my heart. I’m in the hospital now, just removed my adrenal gland and two tumors. Thanks to Dr Alex for finding all this!!!
What could have been done to improve your experience?
Nothing
Dec 5, 2025
Was there anything that you feel was outstanding?
Dr Markov is wonderful in his knowledge, communication and attention to details. He makes you feel like you matter to him. True one of a kind. We feel Blessed to have found him
What could have been done to improve your experience?
Nothing
Dec 2, 2025
Was there anything that you feel was outstanding?
Dr Markov is great!
Dec 2, 2025
Was there anything that you feel was outstanding?
Doctor Markov and his nurse (male)
Nov 28, 2025
Was there anything that you feel was outstanding?
I thought it was neat that Wilma introduced herself, which I don’t think has ever happened to me before. She was the one behind the front desk. Dr. Markov was very considerate and thoughtful and informative in his discussion with me.
Nov 27, 2025
What could have been done to improve your experience?
I was there right on time or two minutes late due to traffic. I waited five minutes or a little less the doctor came in and seemed rushed. The whole appointment was rushed and I didn’t have energy time to ask any questions. This was totally unlike my other visits with him.
Nov 21, 2025
Was there anything that you feel was outstanding?
Dr Markov is always helpful and caring about my health. I never feel rushed. He’s very personable and listens to me and then includes me in discussing what he thinks is the best plan.
Nov 19, 2025
Was there anything that you feel was outstanding?
One of the staff members offered his arm for my use since I was using a cane.
Nov 15, 2025
Was there anything that you feel was outstanding?
I come to my mother's appts with her she is 82 years old. She stated to me she really likes him. I am hoping here insurance company and bjc reach a agreement so we dont have to go elsewhere for her needs. He is caring and explains everything and answers all of our questions and beyond.
Nov 14, 2025
Was there anything that you feel was outstanding?
Dr Alexander Markov us a Great Knowledgeable and so Caring! Helps me get The Best Care not just from him but Other Bjc Doctors! Dr Markov's assistant is great always knowledgeable and really Cares! I only stay with Bjc Doctors they are the Best!They have all saved my Life!
What could have been done to improve your experience?
Nothing its Great everytime!
Nov 14, 2025
Was there anything that you feel was outstanding?
Dr Markov is a very caring and very intelligent doctor who is very open minded to alternative treatment plans. I recommend him to all of my friends.
What could have been done to improve your experience?
Nothing that I can think of.
Nov 11, 2025
Was there anything that you feel was outstanding?
Dr. Markov
What could have been done to improve your experience?
Nothing
Nov 9, 2025
Was there anything that you feel was outstanding?
The entire visit was excellent! Dr. Markov is exactly what I was looking for in an endocrinologist. He was intelligent, thorough, listened well, and partnered with me in my care. As a type one diabetic, my endocrinologist is my most important physician. I left the appointment feeling very happy with my choice to make Dr. Markov my doctor! He even gave me some insights and suggestions to community events and activities.
What could have been done to improve your experience?
Nothing
Nov 7, 2025
Was there anything that you feel was outstanding?
My wife is a retired RN having worked in a hospital setting for 45 years, she is so impressed with the level of care that Dr Markov provides to me. I am as well! His care is so exceptional that I am looking into changing my insurance for next year as he will no longer be in network with my current plan.
Nov 6, 2025
Was there anything that you feel was outstanding?
Dr. Markov's demeanor and professionalism is exceptional. He listened, explained and offered medical advice in a clear fashion that was easily understandable. Thank you!!!
What could have been done to improve your experience?
Nothing.
Nov 6, 2025
Was there anything that you feel was outstanding?
Dr Markov is very sharp and professional. I feel confident he will find answers for my condition!
What could have been done to improve your experience?
Long wait time for 1st appointment. 4 months….
Nov 4, 2025
Was there anything that you feel was outstanding?
Dr Markov
Nov 3, 2025
Was there anything that you feel was outstanding?
The level of friendliness and interest in my questions was exemplary.
What could have been done to improve your experience?
Nothing…well done
Oct 30, 2025
Was there anything that you feel was outstanding?
Sr Markov ALWAYS provides encouraging feedback as I describe what I’m trying to do to “stay in range” and to keep my GMI at appropriate levels! He is constantly working to nullify negative impact of Type 2 on all aspects of my body! I appreciate that!
What could have been done to improve your experience?
Nothing; the visit was very informative and I left with new direction to improve my overall health!
Oct 30, 2025
Was there anything that you feel was outstanding?
The Best Doctor I have ever had.
Oct 29, 2025
Was there anything that you feel was outstanding?
Thank you very much of your service. Special thanks to Dr. Markov for his professionalism, attentiveness, and always timely assistance.
What could have been done to improve your experience?
The best visit
Oct 28, 2025
Was there anything that you feel was outstanding?
The Doctor was excellent. This was in the office and during our virtual visit. He was very professional. I am very pleased with my entire experience. Thank you for such a pleasant experience at such a difficult time.
What could have been done to improve your experience?
Nothing!
Oct 28, 2025
Was there anything that you feel was outstanding?
It was a pleasure going for my visit, all my questions are always answered and I never feel like I’m just being rushed out. Everyone does an excellent job there.
What could have been done to improve your experience?
My visit was 100% satisfactory. I can’t think of anything that could have been improved.