Patient Portal

About Dr. Janssen

Seeing patients in Sioux Center

Dr. David Janssen is an award-winning 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

Specialties

Family Medicine

Obstetrics

Memory Care

Emergency Medicine

Honors & Awards

Spirit of Community Service Award

City of Sioux Center - 2025

Best Dressed Gentleman

Sioux Center Health Foundation Snow Ball - 2025

Iowa Family Physician of the Year

Iowa Academy of Family Physicians - 2025

Dr. Janssen was incredible. I experienced a very tough birth with my daughter and he spent a significant amount of time answering my questions, listening to my concerns about what had happened, praying for my daughter, husband and me, and helping us make informed decisions. We are very thankful for him and his care.

— Patient Survey Comment

This was my first time meeting Dr. Janssen. He was incredibly kind, knowledgeable, and put me at ease regarding my upcoming surgery. I was thankful for the way he conducted the appointment.

— Patient Survey Comment

Dr. Janssen is exceptional! He takes the time to listen to concerns and explains options clearly so you can make informed decisions. I have complete confidence in his care.

— Patient Survey Comment

Dr. Janssen is always thorough & explains everything well. Takes whatever time needed & never makes you feel rushed.

— Patient Survey Comment

El doctor David Janssen muy amable siempre!!

— Patient Survey Comment

1st time seeing Dr. Janssen. VERY impressed. Will ask for him again!

— Patient Survey Comment

Dr. Janssen is AWESOME. I drive an hour just for him!

Dr. Janssen is always thorough & explains everything well. Takes whatever time needed & never makes you feel rushed.

— Patient Survey Comment

Dr. Janssen is PHENOMENAL. I recommend him to all my friends. He delivered both our children and we have continued with him for primary care due to his knowledge and amazing compassion.

— Patient Survey Comment

Services

Medical Clinics

At Sioux Center Health, exceptional care starts with trust. Our family medicine providers walk alongside you through every season with personalized, compassionate care.

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Pregnancy Care

Choosing an OB physician is one of your most important decisions. Our caring doctors walk with you from prenatal care to delivery and beyond—safely and supportively.

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Memory Care

We are dedicated to providing comprehensive diagnosis, personalized treatment, ongoing education, and unwavering support for people living with memory concerns.

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Emergency (ER - 24/7)

The Sioux Center Health Emergency Department is here for you 24 hours a day, 7 days a week. Our experienced team of physicians, nurses, and medical professionals is always ready to provide expert care when you need it most.

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