Promise Community Health Center opened in Sioux Center in 2008 and operates as the only Federally Qualified Health Center serving the far northwest corner of Iowa.


We partner with our patients to provide comprehensive, team-based health care. We value your relationship with your personal care team, which includes your primary care provider, a nurse, and other clinical staff who serve you based on your needs. This team helps you strive for a better state of health through discussing available resources, encouraging you to set personal goals, and offering high-quality health care.
Promise Community Health Center Family Practice Medical Team includes five providers, Dr. Del Lassen, M.D., Medical Director, and advanced registered Nurse Practitioners, Tana Kass, Emily Leinen, Sarah Hietbrink, Stacy Schaap, and Roleen Walgenbach.
The team also includes registered nurses and medical assistants, also interpreters for spanish-speaking patients are integrated as part of each provider team.

Dr. Del Lassen, MD – Medical Director

Sarah Hietbrink, ARNP, FNP-C

Tana Kass, DNP, ARNP, FNP-C

Emily Leinen, ARNP, PMHNP-BC, FNP-C

Stacy Schaap, ARNP

Roleen Walgenbach, ARNP

Mindy De Jager, ARNP, FNP-C
ACUTE CARE
Contact Promise when you don’t feel well, we offer care for acute illness… care@promisechc.org or call 712-722-1700!
CHRONIC DISEASE MANAGEMENT
IN-HOUSE LABS
Need some lab work done? Contact Promise today care@promisechc.org or call 712-722-1700!
IMMUNIZATIONS AND PREVENTIVE CARE
WELL-CHILD CARE
Bring your child in for their yearly well child exam. Make your appointment today care@promisechc.org or call 712-722-1700!
WELL-WOMAN EXAMS
FREE PREGNANCY TESTING
Call Promise to schedule an appointment for free pregnancy testing and meet with a Promise Nurse for next steps. Your plan may include scheduling an appointment with our Promise midwife providers for prenatal care or fertility counseling. If you don’t wish to become pregnant right now, your plan can include scheduling an appointment with our providers for birth control options.
Call 712-722-1700 today to schedule!
IOWA CARE FOR YOURSELF PROGRAM
FAMILY PLANNING SERVICES
STD SCREENING
All STD testing is completely confidential. Call 712-722-1700 to learn more about available testing.
DOT AND IMMIGRATION PHYSICALS
Promise Community Health Center provides immigration physicals for those that require this for their United States citizenship or United States green card. Dr. Delwyn Lassen is designated as a civil surgeon and is authorized to complete an immigration exam. The medical examination entails a review of your medical history, physical examination, and testing for communicable disease.