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Dr. Daniel Marion, MD

Dr. Daniel Marion, MD

Internal Medicine*

Dr. Daniel Marion, MD is an internist in Chesterfield, MO. He is affiliated with medical facilities St. Luke's Hospital and Washington County Memorial Hospital. He is accepting new patients.

4.6 Star Rating
Based on 20 reviews 4.6 Star Rating (20 reviews)

St. Luke's Conway Internists

121 Saint Lukes Center Dr Ste 402 Chesterfield, MO 63017
Patient Favorite Award

Dr. Marion is a patient favorite Internist

The Patient Favorite badge is awarded to top-performing providers who surpass average ratings and comments, reflecting their commitment to exceptional patient care. Read our methodology

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Dr. Marion's Reviews

Likelihood to recommend Dr. Marion

4.6
20 ratings, 18 with a written review
5 star
80%
80%
4 star
10%
10%
3 star
0%
0%
2 star
5%
5%
1 star
5%
5%

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Excellent Doctor
My husband and I have the good fortune to be patients of Dr. Marion. He is passionate about his advice and his outlook on our health. He sends his patients to specialists only when necessary. He is so incredibly knowledgeable about diseases, conditions, medications and health. Excellent!!!
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Feb 23, 2025
Thank you for taking the time to leave a review.... Read More
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Dr. Marion is a Great Doctor
Dr. Marion is detail-oriented and thorough. He reviews your case before seeing you to recall underlying or historical conditions, to add perspective to your visit. He is always prepared. He never writes needless tests and will explain to you what is needed and why. I always got so much useful information from him. We moved away from St. Louis, and dearly miss him!
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Caroline Croskery – Jun 18, 2024
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Best doctor in the world!
Best Doctor I have seen in my 80 years! Good man who takes his time with you in a timely manner. He explains everything to you and honest about your problems.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
4 others found this helpful
Helpful
Dec 03, 2022
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I am so privileged to have Dr. Marion as my physician. I recently needed a myriad of immunizations for job in a short period of time. He enthusiastically reviewed my needs, ordered the requisite tests and vaccines, interpreted the results and communicated to the hospital where I was to work as a consultant. He even was concerned that he had not responded as quickly as needed. He truly is the best primary care physician I have had.
What went well
  • Office environment
  • Explained conditions well
  • Staff friendliness
  • Trusted the provider's decisions
What could be improved
No results
2 others found this helpful
Helpful
Joseph Kenneth Burke – Nov 17, 2021
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Excellent!
What went well
  • Explained conditions well
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
1 other person found this helpful
Helpful
Pat Hackett – Sep 09, 2021
Dr. Marion's Reply –
Thank you.
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Very thorough and listens very well about my concerns. Asks questions about my concerns and is a good listener and never rushes me.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
2 others found this helpful
Helpful
Claudia Rhodes – Oct 30, 2020
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Takes time with you. Tells you all about your health. Great staff.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
2 others found this helpful
Helpful
Patsy Markovich – Sep 17, 2020
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I wholeheartedly agree with all of the positive comments about Dr. Marion. He is so thorough and knowledgeable that I was able to drop a couple of my specialists (urologist and gastroenterologist) since they are now redundant under his care. I read through all of the other reviews and cannot believe the one negative review that is posted. I think that person had a bad day or two and not Dr. Marion.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
2 others found this helpful
Helpful
Don Candido – Jun 19, 2020
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I am a retired physician and would highly recommend Dr. Marion. He is focused on my health issues. He listens. His physical exam is thorough. He spends time explaining what the problem is, options for treatment including possible side effects and cost. Before he finishes with me, he asks if I have any questions. He has consistently exceeded my expectations.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
6 others found this helpful
Helpful
Mar 18, 2020
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Great guy. I have had 2 physicals in 3 years. He is very thorough. Had Pneumonia in 2017. Took care of me. He has a conservative approach that I like.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
6 others found this helpful
Helpful
Dan Venegoni in Wildwood, MO – Mar 05, 2019
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I would highly recommend Dr. Marion. He is the absolute best Doctor ive seen. Hos staff is so friendly, caring and very efficient.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
2 others found this helpful
Helpful
Karen Floyed in St. Louis, MO – Feb 23, 2019
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His attitude was very dismissive- in a huge rush- yearly physical took less than 4 minutes. I saw him for the first time 6 months ago- was under-impressed. (I am in healthcare- a nurse practitioner). I decided to give him another chance -maybe he was having a bad day). Second visit was no better. He also has this weird thing of looking away from you when he talks to you I will not be going back
What went well
  • Wait times
What could be improved
  • Office environment
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Staff wasn't friendly
  • Appointment was rushed
  • Didn't trust the provider's decisions
11 others found this helpful
Helpful
St louis, MO – Jun 30, 2018
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Dr Marion is fantastic. He really takes the time to listen and ask questions. The office staff is wonderful. You are greeted at the window by very pleasant office staff. Getting in for appointments is not difficult. The staff recording vitals before you see Dr. Marion are very friendly too. The office calls you back very promptly with test results. This is a busy office. But they take the time to make you feel like a person who they can help rather than an inconvenience in their day.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
9 others found this helpful
Helpful
Kathryn in St Louis, MO – Feb 21, 2017
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Dr. Marion is a very knowledgeable and compassionate physician. He openly asks for input and feedback regarding treatment, and has exceeded all of my expectations thus far. I will gladly recommend him to both family and friends.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
8 others found this helpful
Helpful
Justin M. in Richmond Heights – Feb 18, 2017
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Seen Dr. Marion twice now. Both times, he has been very understanding and gave several options for treatment. Very helpful.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
6 others found this helpful
Helpful
Ballwin, MO – Dec 21, 2016
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Spent time making sure I understood all treatments and encouraged me to call if I had questions later. Was not in a hurry and by the time my visit was over I felt I had been heard.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
6 others found this helpful
Helpful
Debra Stone in gray summit – Oct 13, 2016
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Dr. Marion was friendly and thorough, I trusted his approach, and he spent a good deal of time with me to explain the situation. Most important, he listened to what I had to say--that's rare in medicine.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
9 others found this helpful
Helpful
St Louis, MO – Sep 07, 2016
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Dr. Marion is smart, thorough, and personable.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
  • Long wait times
7 others found this helpful
Helpful
St Louis, MO – Aug 09, 2016
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About Me

biography

Daniel Marion, MD, is a board-certified physician in internal medicine at Conway Internists. He earned his medical degree from Saint Louis University School of Medicine and completed his residency at St. Luke's Hospital.

Dr. Marion...
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  • Internal Medicine

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • Saint Louis University / Health Sciences Center

    Medical School
American Board of Medical Specialties®
American Board of Internal Medicine®
Internal Medicine
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.
Patient Favorite Award

Dr. Marion is a patient favorite Internist

    Read our methodology

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    Locations

    St. Luke's Conway Internists

    St. Luke's Conway Internists121 Saint Lukes Center Dr Ste 402 Chesterfield, MO 63017
    1

    Affiliated Hospitals

    • St. Luke's Hospital

      232 S Woods Mill Rd
      Chesterfield, MO 63017
      Recipient of 14
      hospital awards

      Surgical Care Excellence Award™ (2025, 2024)

      Top in the nation for overall patient experience based on nine measures related to doctor and nurse communication, hospital cleanliness and noise levels, and medication and post-discharge care instructions

      Outstanding Patient Experience Award™ (2024, 2023, 2022)

      Top in the nation for overall patient experience based on nine measures related to doctor and nurse communication, hospital cleanliness and noise levels, and medication and post-discharge care instructions

      View all awards

      How patients felt about the care they received at this hospital.

      89%
      Patients said they were given information about recovering at home

      5% higher than the national average

      83%
      Patients would recommend the hospital to friends and family

      18% higher than the national average

      View all patient feedback
    • Washington County Memorial Hospital

      300 Health Way Dr
      Potosi, MO 63664

      How patients felt about the care they received at this hospital.

      86%
      Patients said they were given information about recovering at home

      2% lower than the national average

      79%
      Patients said that nurses always listened to them and explained things well

      3% lower than the national average

      View all patient feedback
    Learn more about how Healthgrades measures Hospital Quality