About Dr. Janssen

Seeing patients in Sioux Center

Dr. David Janssen is a bilingual family medicine physician and obstetrician with nearly a decade of experience caring for patients across every stage of life. Known for his kind heart, calm presence, and deep clinical knowledge, he brings thoughtful guidance to every encounter — whether he’s welcoming a new baby into the world or supporting an older adult through memory care.

Dr. Janssen provides full-spectrum care for the whole family. His work spans obstetrics, pediatrics, adult medicine, and geriatrics, making him a trusted guide for everything from prenatal visits to chronic disease management in later years. He takes time to listen and values building lasting relationships with his patients, helping them make confident decisions about their health.

Fluent in Spanish, Dr. Janssen creates a welcoming space for Spanish-speaking patients. His ability to connect across language ensures that care is not only clear but also personal and respectful. His patients often say they feel seen, heard, and understood, no matter their background.

What truly sets Dr. Janssen apart is the quiet strength he brings to his work. Many describe his presence as steady and encouraging. His faith shapes the way he cares, offering wisdom, peace, and hope to patients navigating both joyful and difficult seasons.

Education

Undergrad

Grove City College - Grove City, Pennsylvania

(BS in Molecular Biology, BA in Spanish)

Grad

University of Iowa Carver College of Medicine - Iowa City, IA

Residency

MercyOne Genesis - Quad Cities - Davenport, IA

Professional Membership

American Academy of Family Physicians

Honors & Awards

Spirit of Community Service Award, City of Sioux Center - 2025

Best Dressed Gentleman, Sioux Center Health Foundation Snow Ball - 2025