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About Me

Experience

Education

University of Santo Tomas, Philippines, Medical School

Residency

University of South Dakota School of Medicine, Vermillion, Internal Medicine

Certifications

 Fellow of the American College of International Physicians

Reviews

We value patient feedback and are committed to providing you with information, so you can make informed decisions about your health care, physicians and other providers in your care journey. Patient ratings and comments are gathered from the post-visit experience survey. Learn more.

August 21, 2025
DOC.MARGALLO CHECKED EVERYTHING AND I AM APPRECIATIVE OF THAT. AT MY AGE I HAVE MANY CNCERNS AND HE TAKES HIS TIME AND IS VERY THOROUGH WITH HIS EXAMINATION AND QUESTIONS THAT HE ASKS ME. HE TAKE HIS TIME AND CHEKS EVEERYTHING OUT. HIS MEMORY IS FANTASTIC.
August 20, 2025
Dr. Margallo and his nurse are the best.
August 20, 2025
Doc is always good to me
August 16, 2025
My visit went very well. All of my questions were answered satisfactorily.
August 03, 2025
Dr Margallo has provided me with myHealthy life. He is a true medical Legend to us in Mitchell!
July 20, 2025
Plenty of time given for questions or concerns
June 11, 2025
Dr margallo is slways very caring
May 17, 2025
Dr Margallo continues to be very observant and thorough.
May 12, 2025
Could not have been better.
May 09, 2025
He is very good
May 07, 2025
Everyone was kind and efficient and pleasant
April 23, 2025
Excellent
April 18, 2025
Good
April 16, 2025
Dr Margallo is why I go to Avera
March 29, 2025
Dr is excellent. He really cares about his patients.
March 28, 2025
Everything was excellent! Great people!
March 27, 2025
I have known this doctor for many years and have the utmost confidence in his advice and decisions for my health care.
March 11, 2025
Dr Margallo is always caring, knowledgeable and empathetic. He is an exceptional provider.
February 09, 2025
Dr Margallo's staff and himself always provide a very good experience.
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Directory Disclaimers

This directory contains information about the provider members of Independent Health Care Associates, Avera Health and all Avera entities, members of the Avera Medical Group, and employed select providers with Avera McKennan, Sioux Falls, SD and Avera Marshall, Marshall, MN and physicians with hospital privileges at Avera St. Luke's, Aberdeen, SD; Avera Sacred Heart, Yankton, SD; Avera Queen of Peace, Mitchell, SD; Avera St. Mary's, Pierre, SD.

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