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Gary DuMontier, MD

Mercy Clinic
Gary DuMontier, MD, Mercy

Gary DuMontier, MD

Specialty

  • Internal Medicine
(4.9/5)
662 Ratings | 175 Comments
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Location and Contact Information

About Gary DuMontier, MD

Education
Medical School
  • University of Missouri - Columbia
Residency
  • Mercy Hospital Saint Louis-Internal Medicine
Specialty
Board Certifications
  • American Board of Internal Medicine
Affiliations
  • Mercy Hospital Washington
Languages
  • English
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Looking for more options?
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View all Internal Medicine providers.

Patient Ratings and Comments

Rating

From 662 patients
(4.9/5)
The provider rating is an average based on Mercy Clinic's post-care survey responses. To find out more, check out our frequently asked questions.

Comments

Viewing 1-3 of 175 comments
Highlights from patients about their experience with this provider:
  • Apr 4, 2025
    (5/5)
    Going to miss Dr. Dumontier What a great Physician! My husband and I were truly blessed to have him as our provider.
  • Apr 2, 2025
    (5/5)
    Dr. Dumontier is a wonderful doctor. I'm going to miss him a lot. Thank you.
  • Apr 2, 2025
    (5/5)
    all aspects of my visit exceeded my expectations. did not feel rushed. I felt very comfortable with Dr. DuMontier and the nurse.

Insurance Accepted

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Meet The Whole Care Team

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Gary DuMontier, MD
Mercy Clinic
Gary DuMontier, MD
Internal Medicine
438.7 Miles
(636) 239-7500
Tamara Jean Bailey, NP
Mercy Clinic
Tamara Jean Bailey, NP
Internal Medicine
438.7 Miles
Schedule Online
Karen M. Gross, APN
Mercy Clinic
Karen M. Gross, APN
Internal Medicine
438.7 Miles
Schedule Online
Patricia Lynn Parks, FNP
Mercy Clinic
Patricia Lynn Parks, FNP
Family Medicine
438.7 Miles
Schedule Online
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