Dayton E. Dmello, MD

Mercy Clinic
Dayton E. Dmello, MD, Mercy

Dayton E. Dmello, MD

Specialty

  • Pulmonology
  • Sleep Medicine
  • Critical Care Medicine

Online Services

Schedule Online
Location of Your Visit
Mercy Clinic Pulmonology - St. Louis
621 S. New Ballas Road, Tower A, Suite 228ASt. Louis, MO 63141

Select a Location

To schedule an in-person or video visit (available only through certain locations).

621 S. New Ballas Road, Tower A, Suite 228ASt. Louis, MO 63141
13.4 Miles

Select a Visit Type

To ensure the highest quality patient care, please select the most appropriate visit type, as length of visits vary. If you do not see your visit type, please call.

Existing Patient Visit

I have seen this provider within the last three years and need an appointment that is not my normal routine physical or well check. This is a standard visit length that typically lasts 15-20 minutes.

Questions? Call:
(314) 251-4966
Are you concerned about your breathing?
Respiratory issues require immediate attention. Contact our office, or schedule your appointment below.

Select a Time

Please select your preferred time slot for your appointment.

Location and Contact Information

About Dayton E. Dmello, MD

Video Player is loading.
Current Time 0:00
Duration 0:00
Loaded: 0%
Stream Type LIVE
Remaining Time 0:00
 
1x
  • Chapters
  • descriptions off, selected
  • captions off, selected
      Education
      Medical School
      • Grant Government Medical College
      Fellowships
      • Saint Louis University-Critical Care Medicine
      • Saint Louis University-Pulmonary Medicine
      Residency
      • Forest Hills Hospital-Internal Medicine
      Board Certifications
      • American Board of Internal Medicine
      • Amer Bd Internal Medicine (Pulmonary Disease)
      • Amer Bd Internal Medicine (Sleep Medicine)
      • Amer Bd Internal Medicine (Critical Care Medicine)
      Affiliations
      • Mercy Hospital St. Louis
      • Mercy Hospital Lincoln
      Languages
      • English
      Looking for more options?
      Find the Mercy provider who's right for you.
      View all Pulmonology providers.
      Looking for more options?
      Find the Mercy provider who's right for you.
      View all Pulmonology providers.

      Patient Ratings and Comments

      Rating

      From 156 patients
      (4.7/5)
      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 21 comments
      Highlights from patients about their experience with this provider:
      • May 2, 2025
        (5/5)
        I felt I received all the information I needed for now.
      • Apr 14, 2025
        (5/5)
        I have always been treated with compassion, kindness, & professionalism when seeing Dr. DMello.
      • Apr 4, 2025
        (5/5)
        My care provider is wonderful!