Dr. Diana L Westerfield, DO
Cardiology
10 Hospital Drive, Suite 100
Saint Peters, MO 63376 Directions
4.8 out of 5
299 verified ratings
299 Ratings, 81 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.
Aug 23, 2026
What else would you like to say about your experience?
Great experience meeting his new Cardiologist by the first time. Concise friendly thoughtful great at listening and communicating.
Aug 19, 2026
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I was well satisfied with Diane and her work and her comments about my condition and I like her very much.
Aug 15, 2026
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I can’t say enough about Dr. Westerfield. She is just so wonderful. So caring and engaged. She is so easy to talk with. She really cares about her patients. I am so thankful she is my cardiologist.
Aug 14, 2026
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Dr. Westerfield is great.
Aug 13, 2026
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felt like i was important to them to make sure that i was taken care of and made sure that i was comfortable.
Aug 11, 2026
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Love Dr Westerfield.
Aug 10, 2026
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Dr. Westerfield puts you at ease immediately. She is professional, extremely knowledgeable, explains everything in an understandable manner, welcomes questions and is exceptionally compassionate. We are so blessed to have her as our Cardiologist.
Aug 7, 2026
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Dr Westerfield was very knowledgeable made me feel comfortable. Staff was very helpful also.
Aug 5, 2026
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Dr Westerfield is wonderful. She listens to what I have to say, knows my history and takes appropriate actions. I highly recommend Dr Westerfield.
Aug 5, 2026
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Dr. Westerfield is a very open communicator and a caring person. I look forward to appointments with her.
Jul 29, 2026
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Very thorough reviewing records and talking
Jul 29, 2026
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Dr. Westerfield is excellent in all aspects of her field of practice - cardiology. I feel very confudent in the care my wife and I recieve.
Jul 28, 2026
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All around great experience
Jul 25, 2026
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dr, westerfield is great!
Jul 25, 2026
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I have no complaints. I was admitted to see the doctor within five minutes of my arrival. The next thing I know, the doctor came in. We had a nice chat. She introduced me to the student that was with her. We talked about some questions I have and we said that we would meet again in six months. It was wonderful. I'm so glad to see that she was in good health because I appreciate everything she does. Thank you.
Jul 23, 2026
What else would you like to say about your experience?
Drs do not seem to feel the need to explain things to we the patients! It directly concerns our life and quality of it. Think they should be more open about what and even more importantly why they are doing tests and also the monetary cost for patient.
Jul 21, 2026
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Dr Westerfield is an awesome Dr. she does not rush you through appointment and listens to you! Very pleasant Dr and friendly.
Jul 19, 2026
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I have been with Dr Westerfeild for a long time. I would like to you that she really cares for her patients.
Jul 17, 2026
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Dr Westerfield is awesome! Very personable and takes her time with you !!!
Jul 16, 2026
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Keep up the good work.
Jul 15, 2026
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I was so happy with Dr Westerfield that I referred my sister and her husband. All three of us are happy patients.
Jul 13, 2026
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Dr. Westerfield was generous with her time and was very thorough in her questions regarding my health.
Jul 10, 2026
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Had a wonderful experience. Was great to see them again.
Jul 9, 2026
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Dr. Westerfield made me feel at ease and was very thorough in her approach to my issue. I look forward to working with her to manage it going forward.
Jul 1, 2026
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Yes, Dr. Westerfield is awesome. She listens to you, she helps you, she explains everything, and her office staff is very good too.
Jul 1, 2026
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Dr. Westerfield is a great doctor and I can't think of anything she could do any better. She cares about her patients.
Jun 25, 2026
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Dr. Westerfield is the FIRST BJC doctor who came in prepared and had already studied my history. She was very friendly and actually interested in having me for a patient. No student/professor appointment. I am too old to be someone's class assignment. She is a true physician!
Jun 17, 2026
What else would you like to say about your experience?
The doctor talked to me in a way that I could understand and it gave me a lot of confidence in that she will care for me and care for my health position as it is and will help me if I have a problem.
Jun 16, 2026
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You are very lucky to have such a great team of employees
Jun 15, 2026
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It was great, keep up the good job
Jun 11, 2026
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I am very happy to be back with Dr. Westerfield! She is an incredible physician and easy to talk to.
Jun 1, 2026
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Dr. Westerfield is such a joy. My blood pressure was up at the beginning of my visit with her, and after 5-10 minutes of chatting with her, she retook it, and I was back in the normal range. She makes me feel such at ease. I would definitely recommend her to someone who needs to see a Cardiologist.
May 30, 2026
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This was an annual visit, efficient but time for questions and answers. Did nit feel hurried.
May 30, 2026
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The staff was very welcoming and friendly. Dr. Westergill is absolutely the best. She's the best doctor I think I have. It was easy to get in. She spent plenty of time with me and I enjoyed our visit.
May 15, 2026
What else would you like to say about your experience?
Doctor is very good. She listens. She's very responsible with the care of her patients. And really enjoyed meeting her and dealing with her for my appointments. Would highly recommend.
May 15, 2026
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You did very good.
May 15, 2026
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Doctor Westerfield is the best without question
May 13, 2026
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Dr Westerfield and staff are awesome!
May 12, 2026
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Dr Westerfield always takes time to listen to your issues. She likes to stay on top of any potential problems. I like that she obviously checks your file before she enters the room and comments on any issues you have experienced. I like her “bedside” manor and the way she puts you at ease.
May 11, 2026
What else would you like to say about your experience?
Dr Westerfield is always an enjoyable experience. She is through but never in a hurry.
May 11, 2026
What else would you like to say about your experience?
Dr Westfield is wonderful
She is outgoing and explained my issues in a way that u understood
May 9, 2026
What else would you like to say about your experience?
The staff is always pleasant and on ball. The doctor is pleasant and very thorough.
May 8, 2026
What else would you like to say about your experience?
Dr. Westerfield is probably the best doctor I have ever had and I have had some of the best. Not only is she so very knowledgeable, she is the most compassionate and when she walks in the room, she has read your file and KNOWS you and your history and your needs. She is kind and you are the focus of her attention. Her staff is also very professional and efficient. No complaints from me. I have recommended her and the office to many people.
May 8, 2026
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Dr. Westerfield is awesome.
May 5, 2026
What else would you like to say about your experience?
Doctor westerfield always listens and cares About my health
Apr 28, 2026
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Everything went very well and staff and doctor are great.
Apr 26, 2026
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Dr. Westerfield is so great, I felt she truly cared about my issue.
I will recommend her to all my friends. It was a great experience..
Apr 24, 2026
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Dr. Westerfield and her staff are the most caring and knowledgeable doctors we know. If it weren't for them I probably wouldn't be here now.
Apr 23, 2026
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The provider was very professional. She was thorough in her questions to understand my symptoms. She studied my medical records before my appointment and made notes. She listened carefully to my explanation of events and past medical history. She was thoughtful, and I was highly motivated to follow the course of treatment she prescribed.
Apr 16, 2026
What else would you like to say about your experience?
Dr. Westerfield explains things in a way that keeps you calm. Sometimes a person's imagination gets carried away, but she brings you back to earth with her kind and caring manner. I highly recommend her and BJC.