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Garrett Sterk

Garrett Sterk, DO

Family Medicine

"Patients trust their doctors with their lives; it’s something I keep close to my heart and the forefront of my mind. Putting my patients’ well-being first is the upmost importance"

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Office Information

About Me

Look to Garrett Sterk, DO, for expert and compassionate care for the entire family. He practices the spectrum of primary care services at Avera Medical Group Sibley in Sibley, IA.

He’s honored to work for Avera, where he feels free to practice how he sees is in your best interest, and where he can live his faith as opportunity allows.

Expert Care in Family Medicine

Dr. Sterk personalizes his primary care services to your needs. Schedule an appointment for:

He’s especially passionate about geriatric care. “My first job was being a CNA, so I have a heart for older adults,” Dr. Sterk said. “I get to help them live a fulfilling life and learn more about how their perspectives and priorities changed over their life.”

Active Lifestyle

Dr. Sterk enjoys spending time with wife and family. He also likes exploring theology and history. You can often find him enjoying the outdoors — either playing sports or gardening.



Kirksville College of Osteopathic Medicine – Kirksville, MO, Medical School


Sioux Falls Family Medicine Residency – Sioux Falls, SD, Family Medicine

Professional Memberships

Iowa Academy of Family Physicians

American Medical Association


American Board of Family Medicine 

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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Moving Health Forward

Avera is a health ministry rooted in the Gospel. Our mission is to make a positive impact in the lives and health of persons and communities by providing quality services guided by Christian values.

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