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Dr. Robert McMahon, MD

Dr. Robert McMahon, MD

Gastroenterology*
35+ years of experience

Dr. Robert McMahon, MD is a gastroenterologist in Saint Louis, MO and has over 35 years of experience in the medical field. He graduated from Washington University St Louis in 1989. He is affiliated with medical facilities such as Missouri Baptist Medical Center and Mercy Hospital South. He is accepting new patients.

3.9 Star Rating
Based on 9 reviews 3.9 Star Rating (9 reviews)

Practice

1610 Des Peres Rd Ste 150 Saint Louis, MO 63131

Make an Appointment

(314) 492-4100

Hospital Highlight

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

At a Glance

  • Areas of Expertise
    Dr. McMahon 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. McMahon's Reviews

Likelihood to recommend Dr. McMahon

3.9

9 ratings, 2 with a written review
5 Star
67%
67%
4 Star
0%
0%
3 Star
11%
11%
2 Star
0%
0%
1 Star
22%
22%

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RecentHighestLowestMost Helpful
What went well
No results
What could be improved
No results
1 person found this helpful
Helpful
Mar 17, 2018
×Post a ResponseAre you Dr. Robert McMahon, MD?
What went well
No results
What could be improved
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Staff wasn't friendly
  • Appointment was rushed
1 person found this helpful
Helpful
Jan 05, 2017
×Post a ResponseAre you Dr. Robert McMahon, MD?

Leave a review

How was your experience with Dr. McMahon?

Know Before You Go

About Me

care philosophy

Dr. Robert McMahon and staff provide Gastroenterology service in St. Louis with commitment to highest quality care and personal attention based on experience and education. We strive for promptness and availability. www.MYCOLONOSCOPY.com

  • 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.

  • Ucsd

    Undergraduate School

  • University Ark For Med Scis

    Fellowship Hospital, 1995

  • Washington University Jewish Hospital

    Residency Hospital, 1992

  • Washington University

    Internship Hospital, 1990

  • Washington University St Louis

    Medical School, 1989
National Board of Physicians and Surgeons®
National Board of Physicians and Surgeons®
- 
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

Focus on IBD

Locations

Practice

Office1610 Des Peres Rd Ste 150 Saint Louis, MO 63131
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 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, 2024, 2023)

    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.

    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

  • SSM Health St. Clare Hospital-Fenton

    1015 Bowles Ave
    Fenton, MO 63026
    Recipient of 2
    hospital 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

    78%
    Patients said that nurses always listened to them and explained things well

    3% higher than the national average

    View all patient feedback

  • Mercy Hospital Jefferson

    1400 US Highway 61
    Festus, MO 63028
    Recipient of 3
    hospital awards

    Patient Safety Excellence Award™ (2025, 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.

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

    2% higher than the national average

    78%
    Patients said that nurses always listened to them and explained things well

    3% higher than the national average

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