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Dr. Marin Marcu, MD

Dr. Marin Marcu, MD

Gastroenterology*
35+ years of experience

Dr. Marin Marcu, MD is a gastroenterologist in Saint Charles, MO and has over 35 years of experience in the medical field. Dr. Marcu has extensive experience in Pancreatic Disease and Esophageal Disorders. He graduated from Universitatea De Medicina Si Farmacie Carol Davila, Facultatea De Medicina in 1986. He is affiliated with medical facilities SSM Health St. Joseph Hospital-Lake Saint Louis and SSM Health St. Joseph Hospital-St. Charles. He is accepting new patients.

4 Star Rating
Based on 28 reviews 4 Star Rating (28 reviews)

Practice

400 1st Capitol Dr Ste 201 Saint Charles, MO 63301

Make an Appointment

(636) 940-5720

Hospital Highlight

Dr. Marcu is affiliated with SSM Health St. Joseph Hospital-Lake Saint Louis Lake Saint Louis, a highly rated hospital.

Dr. Marcu is a Healthgrades Choice provider in Gastroenterology

The Healthgrades Choice designation helps you understand the most important factors to consider when choosing a healthcare professional. This designation is earned based on four set standards.
Read our methodology

  • Above average experience
  • Good hospital quality
  • Good patient ratings
  • No healthcare sanctions
  • Area of Expertise
    Dr. Marcu specializes in the area of Gastroenterology. • See board certifications
  • Explains Conditions Well
    Patients said this doctor explains conditions well. • See reviews
  • Practices at Top Hospital
    Patient Safety Excellence Award™ • See hospitals
  • Trustworthy
    Patients said this doctor is trustworthy. • See reviews
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Dr. Marcu's Reviews

Likelihood to recommend Dr. Marcu

4.0
28 ratings, 8 with a written review
5 star
71%
71%
4 star
0%
0%
3 star
4%
4%
2 star
7%
7%
1 star
18%
18%

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Dr. Marcu is a true professional!!!
Dr. Marcu took great interest in finding the source of my GI bleeding, even when it was not evident after four different procedures. Dr. Marcu went the extra mile, even calling me personally to let me know when he did find the source of the bleeding. I was, however, extremely disappointed to hear that he would have to refer me to another specialist to treat the cause. I highly recommend Dr. Marcu to anyone experiencing any GI issues.
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
1 other person found this helpful
Helpful
Barbara Burkemper – Jan 27, 2023
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Dr. Marcu doesn’t seem to listen well, he walks away while your talking to him & explaining your symptoms & pain while he says very well!! Maybe he is a good Dr. but, he’s too short & dismissive for me..
What went well
No results
What could be improved
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Didn't trust the provider's decisions
1 other person found this helpful
Helpful
Mar 19, 2021
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He is
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Cheryl holland – Jul 17, 2020
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He recently performed a colonoscopy for me and made the procedure so much better than it could have been. His follow up care was amazing! He took the time to talk with me afterwards and explain the results and his diagnosis in detail and words that were so easy to understand, and even spoke with me about the actions I could take to improve my health. A great doctor whom I would highly recommend !
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
3 others found this helpful
Helpful
Melynda mundy – Jun 25, 2020
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Excellent care, extreme expert in his field with exceptional communication skills in regard to treatment and diagnosis.
What went well
No results
What could be improved
No results
2 others found this helpful
Helpful
Apr 20, 2019
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I have been to a couple of other GIs over the past 10 years who could not figure out my issues and just summed everything up to IBS without doing any further testing. Dr. Marcu did further testing and found out that I have Celiac disease which is what has been causing my issues for the last 10 years. He was very thorough with all of his explanations and even called me personally with my test results. I could not recommend a better doctor to anyone.
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
St Charles, MO – Nov 15, 2017
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Dr. Marcu was the worst doctor I've ever dealt with. He never let me finish a question before cutting me off and answering it. He called my mother antagonistic for showing concern about my disease. There was absolutely no "bedside manner" shown which should be given to a young girl learning she has a lifelong disease. I never received phone calls from the office about biopsy results, blood tests, or an MRI. He implied that I was lying when I stated I didn't get the calls. HIGHLY DO NOT RECOMMEND
What went well
  • Office environment
  • Appointment scheduling
What could be improved
  • 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
6 others found this helpful
Helpful
St Charles, MO – Mar 21, 2017
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The Doctor was on time , talked with me about what was going to happen.
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
3 others found this helpful
Helpful
anthony b. in wentzville mo – Aug 08, 2016
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Leave a review

How was your experience with Dr. Marcu?

Know Before You Go

About Me

biography

Dr. Marin Marcu, MD is a gastroenterologist in Saint Charles, MO and has over 35 years of experience in the medical field. Dr. Marcu has extensive experience in Pancreatic Disease and Esophageal Disorders. He graduated from Universitatea De Medicina...read more

  • Gastroenterology

*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

    Internship Hospital, 1996

  • Saint Louis University Hospital

    Internship Hospital, 1996

  • Saint Louis University School Of Medicine

    Residency Hospital, 1996

  • Universitatea De Medicina Si Farmacie Carol Davila, Facultatea De Medicina

    Medical School, 1986
American Board of Medical Specialties®
American Board of Internal Medicine®
- 
Gastroenterology
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.

Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.

Learn more about medical license public record check

  • English

  • Romanian

Dr. Marcu is a Healthgrades Choice provider in Gastroenterology

    Read our methodology

    Focus on IBD

    Locations

    Practice

    Obstetrics Gynecologic Oncology SSM Health Medical Group400 1st Capitol Dr Ste 201 Saint Charles, MO 63301
    1

    Practice

    Consultative Cardiology LLC400 1st Capitol Dr Saint Charles, MO 63301
    2

    Practice

    Ambulatory Anesthesia Services of St. Charles LLC4203 S Cloverleaf Dr Saint Peters, MO 63376
    3

    Affiliated Hospitals

    • SSM Health St. Joseph Hospital-Lake Saint Louis

      100 Medical Plz
      Lake Saint Louis, MO 63367
      Recipient of 2
      hospital awards

      Patient Safety Excellence Award™ (2025)

      Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

      View all awards

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

      83%
      Patients said they were given information about recovering at home

      1% lower than the national average

      76%
      Patients said that nurses always listened to them and explained things well

      1% higher than the national average

      View all patient feedback

    • SSM Health St. Joseph Hospital-St. Charles

      300 1st Capitol Dr
      Saint Charles, MO 63301
      Recipient of 6
      hospital awards

      Patient Safety Excellence Award™ (2024, 2023)

      Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

      View all awards

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

      84%
      Patients said they were given information about recovering at home
      74%
      Patients said that nurses always listened to them and explained things well

      1% lower than the national average

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