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Dr. Anna Niesen, MD

Dr. Anna Niesen, MD

Gastroenterology*
45+ years of experience

Dr. Anna Niesen, MD is a gastroenterologist in Saint Louis, MO and has over 45 years of experience in the medical field. She graduated from SAINT LOUIS UNIVERSITY / HEALTH SCIENCES CENTER in 1975. She is affiliated with medical facilities such as Missouri Baptist Medical Center and Mercy Hospital St. Louis. She is accepting new patients.

4.4 Star Rating
Based on 18 reviews 4.4 Star Rating (18 reviews)

Practice

1034 S Brentwood Blvd Ste 1000 Saint Louis, MO 63117

Make an Appointment

(314) 781-8405

Hospital Highlight

Dr. Niesen is affiliated with Missouri Baptist Medical Center Saint Louis, a highly rated and top awarded hospital for gastroenterology.

Dr. Niesen 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
  • Areas of Expertise
    Dr. Niesen specializes in the areas of Gastroenterology & Internal Medicine. • See board certifications
  • Explains Conditions Well
    Patients said this doctor explains conditions well. • See reviews
  • Practices at Top Hospital
    America’s 100 Best Hospitals for Gastrointestinal Care Award™ • See hospitals
  • Hospital Satisfaction
    Patients said they were highly satisfied at this doctor's hospital. • See hospitals
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Dr. Niesen's Reviews

Likelihood to recommend Dr. Niesen

4.4

18 ratings
5 Star
83%
83%
4 Star
0%
0%
3 Star
0%
0%
2 Star
6%
6%
1 Star
11%
11%

Leave a review

How was your experience with Dr. Niesen?

Know Before You Go

About Me

biography

Dr. Anna Niesen, MD is a gastroenterologist in Saint Louis, MO and has over 45 years of experience in the medical field. She graduated from SAINT LOUIS UNIVERSITY / HEALTH SCIENCES CENTER in 1975. She is affiliated with medical facilities such...read more

  • Gastroenterology

  • 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, 1975
American Board of Medical Specialties®
American Board of Internal Medicine®
- 
Gastroenterology
- 
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.

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

Dr. Niesen is a Healthgrades Choice provider in Gastroenterology

    Read our methodology

    Focus on IBD

    Locations

    Practice

    Bellevue Diagnosticians Inc.1034 S Brentwood Blvd Ste 1000 Saint Louis, MO 63117
    1

    Affiliated Hospitals

    • Missouri Baptist Medical Center

      3015 N Ballas Rd
      Saint Louis, MO 63131
      Recipient of 19
      hospital awards

      America’s 100 Best Hospitals for Gastrointestinal Care Award™ (2025)

      Superior clinical outcomes in bowel obstruction treatment, colorectal surgeries, gallbladder removal, and upper gastrointestinal surgery

      America’s 100 Best Hospitals for Gastrointestinal Surgery Award™ (2025, 2024, 2023)

      Superior clinical outcomes in bowel obstruction treatment, colorectal surgeries, gallbladder removal, and upper gastrointestinal surgery

      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

      80%
      Patients said that doctors always listened to them and explained things well

      4% higher than the national average

      View all patient feedback

    • Mercy Hospital St. Louis

      615 S New Ballas Rd
      Saint Louis, MO 63141
      Recipient of 21
      hospital awards

      America’s 100 Best Hospitals for Gastrointestinal Care Award™ (2025)

      Superior clinical outcomes in colorectal surgeries, gallbladder removal, upper gastrointestinal surgery, and treating bowel obstruction, gastrointestinal bleeds, and pancreatitis

      America’s 100 Best Hospitals for Gastrointestinal Surgery Award™ (2025)

      Superior clinical outcomes in colorectal surgeries, gallbladder removal, upper gastrointestinal surgery, and treating bowel obstruction, gastrointestinal bleeds, and pancreatitis

      View all awards

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

      82%
      Patients said they were given information about recovering at home

      2% 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. Mary's Hospital-St. Louis

      6420 Clayton Rd
      Richmond Heights, MO 63117

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

      81%
      Patients said they were given information about recovering at home

      3% lower than the national average

      77%
      Patients said that doctors always listened to them and explained things well

      1% higher than the national average

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