About Me

Ryan J. Miller, MD, is an internal medicine physician with Avera Medical Group Internal Medicine.

Dr. Miller enjoys how the care team comes together to help each patient, with a focus on communication in both clinic and hospital settings to make sure the best possible outcomes are reached every time. The wide range of cases in his specialty leads to many different approaches, from coordinating care of patients with complex conditions like lung conditions, heart disease or diabetes, but also providing routine care to other patients, especially in older adults.

He has a special passion for quality and has completed a number of research projects that focus on including a quality focus on all aspects of health care. His training and experience help him to solve puzzling diagnostic problems you might face, and he can handle severe chronic illnesses and situations where several different illnesses may strike at the same time.

He worked in an Avera emergency department when he was younger, and that exposure to care in urgent settings led him to a medical career. He feels at home with Avera because of its focus on patients at the center of all care decisions and the compassion of every member of the team.

Active Lifestyle

When he’s not seeing patients, Dr. Miller loves to spend time with family outdoors, hiking, biking, kayaking or playing golf. As a Sioux Falls native, he and his wife are thrilled to plant roots here with their children.

Experience

Education

University of South Dakota Sanford School of Medicine, Vermillion, SD, Medical School

Residency

University of Minnesota Medical School, Minneapolis, MN, Internal Medicine

Certifications

  • American Board of Internal Medicine

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.

September 19, 2025
Dr. Miller is always attentive and professional.
September 17, 2025
Good
September 16, 2025
Dr Miller was very thorough and answered my questions and made a referral.
September 16, 2025
Dr. Miller accepted me even though I was late. He was very kind, professional, and detailed. Very impressed.
September 15, 2025
I had a meet and greet with Dr. Ryan Miller to go over any medical concerns I had prior to seeing him for my annual check-up. I was VERY impressed with everyone at this clinic and am very happy I decided to have my files transferred to Dr Miller.
September 15, 2025
Dr Miller at least listens-unlike some in the medical field.
September 11, 2025
Dr very thorough and patient. No pressure to close visit.
September 06, 2025
As soon as I walk in I'm treated very well by everyone, the Nurses and Dr. Miller are patient with me, Dr. Miller takes his time and I can ask him anything and he explains It so I can understand, he has taken care of me very well and I feel at ease. I'm grateful he is my Doctor
September 06, 2025
Excellent!!
September 04, 2025
No waiting. Very friendly.
August 23, 2025
Dr. Miller & his staff are very kind, considerate, and thorough. When with me, they are excellent listeners & helpful with their suggestions. I feel heard & cared for. It's as if I am a guest in their "home" to make certain all my needs & concerns are considered.
August 21, 2025
Concern is always shown
August 14, 2025
Excellent Dr. Listened, and provided knowledgeable guidance.
July 31, 2025
Dr. Miller is extremely professional, knowledgeable, and friendly. He is an outstanding physician.
July 30, 2025
Dr Miller is the best!!!!!
July 25, 2025
Excellent!
July 19, 2025
I am very impressed with Dr. Miller's insight and knowledge. I feel that I am receiving excellent care from Dr. Miller.
July 10, 2025
Dr. Miller is so personable and willing to listen when we visit about concerns. He is willing to help me in any way referral if I need extra assistance with an issue, such as weight, balance, or emotions!
July 09, 2025
Highly recommend!
June 26, 2025
Dr. Miller always listens and is very attentive to my concerns. I appreciate him a great deal.
June 20, 2025
Dr. Miller was very ease to talk to about my extensive health issues. He made me feel at ease and was very thorough.
June 18, 2025
Dr. Miller always take time and care to talk through and explain all aspects of my health.
June 08, 2025
Dr Miller is the consummate professional. I believe I owe my life to him. He is an incredibly kind and compassionate doctor. He always has time to complete my appointments and is a great communicator. Everything is always explained in terms I can understand and his attention to my wellbeing is appreciated.
May 24, 2025
I have recommended him to several and they all are now patients
May 09, 2025
Dr Miller is great. He always listens to me and we have good discussions.
May 09, 2025
To me he's a good doctor
May 04, 2025
Dr Miller is WONDERFUL
May 01, 2025
Excellent
April 21, 2025
Dr. Miller was exceptional! I had a fantastic experience.
April 13, 2025
Made sure X-ray was done and read by radiologist
March 30, 2025
Dr. Miller is very patient, a great listener, caring, and always asks if there is anything else I wish to discuss before we conclude the session. A very good physician! A very good person!
March 26, 2025
From nurse to the Doctor- all were excellent!
March 23, 2025
Yes, I have a recommended people.
March 23, 2025
Pleasant explained lab numbersDiscussed concerns problem solved my blood pressure numbers and medications. Thorough
March 12, 2025
Good
March 06, 2025
I would recommend Dr Miller to friends and relatives.
March 03, 2025
Good
March 01, 2025
Dr Ryan Miller is the BEST
February 23, 2025
Ryan Miller is WONDERFUL!!!!!
February 22, 2025
I really like Dr Miller ,he's always helpful. Answers all my questions and I sometimes have a list. He's patient with me and informative about all my medical issues and I have a lot.
February 15, 2025
Dr Miller is always very professional
January 31, 2025
Couldn't be more satisfied with Dr Miller.
January 26, 2025
Dr. Miller was excellent!
January 25, 2025
He is the best doctor I have ever had - he takes his time with me and listens to all my concerns and has good solutions for me.
January 09, 2025
Dr. Miller was very engaged and responsive In our discussions, not overpowering and very understanding. He explained solutions to my concerns in ways I could understand. Very informative and I felt I have a doctor who cares about me and my health goals.
December 26, 2024
Good
December 26, 2024
Dr Miller is fantastic. Takes time to listen to your input and thoughts.

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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