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Gary DuMontier, MD

Mercy Clinic
Gary DuMontier, MD, Mercy

Gary DuMontier, MD

Specialty

  • Internal Medicine
(4.9/5)
659 Ratings | 156 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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Find the Mercy provider who's right for you.
View all Internal Medicine providers.
Looking for more options?
Find the Mercy provider who's right for you.
View all Internal Medicine providers.

Patient Ratings and Comments

Rating

From 659 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 156 comments
Highlights from patients about their experience with this provider:
  • Jan 27, 2025
    (5/5)
    Dr Dumontier and his nurses and staff are very supportive. He will be greatly missed when he retires, but his staff is well informed and very willing to listen and accommodate patients.
  • Jan 27, 2025
    (5/5)
    Dr. DuMontier is wonderful-you could not ask for anybody else that is great as he is!!!!!!!!! I hate Quest-it takes an hour to get your blood test - never had to wait that long when Mercy ran that place!! Quest stinks!!! Please find a way to improve it!
  • Jan 24, 2025
    (4/5)
    Dr. Dumontier will be missed

Insurance Accepted

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Meet The Whole Care Team

Our group of experts committed to your health.

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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