Family Practice

Tana Kass, nurse practitioner
Tana Kass, nurse practitioner

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.


Family Practice Medical Team

The family practice medical team includes three providers, Dr. Del Lassen, M.D., medical director, and advanced registered nurse practitioners, Tana Kass, Faith Schiltz, Amy Waterman and Roleen Walgenbach. The team also includes registered nurses and medical assistants. Interpreters for Spanish-speaking patients are integrated as part of each provider team.

Dr. Del Lassen, MD    Tana Kass, ARNP    Faith Schiltz, ARNP 

Amy Waterman, ARNP    Roleen Walgenbach, ARNP

Promise's medical providers see patients five days per week: 8 a.m.-7 p.m. Mondays, 8 a.m.-6 p.m. Tuesdays and Wednesday, 8 a.m.-7 p.m. Thursdays, and 8 a.m.-5 p.m. Fridays.


Acute Care

We offer care for acute illness and urgent problems. Our staff will plan your treatment, completing any minor procedures and/or testing that is needed after your evaluation. Our providers work with area hospitals and follow patients through their entire treatment if they require services outside of our facility.


Chronic Disease Management

Whether you are newly diagnosed with a condition or have been diagnosed for many years, our staff provides a model of care unique to your needs. We offer medication management, goal setting and coaching for you and your family, health assessments, and personal education. Staff coordinate patient care for conditions such as cardiovascular disease, chronic respiratory disease, and diabetes.


CLIA Waived Lab

Our health center performs many patient laboratory tests on site in a Clinical Laboratory Improvement Amendments (CLIA) waived lab. For any tests we are unable to complete on site, staff will coordinate testing at another facility and will follow up with patient's results, in most cases the next day.


Immunizations and Preventive Care

As your primary health-care provider, we are more than your safety net. We are committed to offering preventive care, immunizations, and educational tools so that you have the appropriate screenings and resources you need to manage your health and do your part to prevent future illness and disease. We provide free vaccinations for newborns to 18-year-olds who are eligible for the Vaccines for Children (VFC) program and have a range of private vaccines available as well. We believe patients should understand risk factors and recognize early disease warning signs to reduce the burden of disease on themselves, their family, and the community. 


Well-Child Care

We care deeply about your child's health and growth, and we are well-equipped to offer the care your family needs. Our staff is trained in the care of patients from newborns through adolescents and can provide all physicals, immunizations, acute and urgent care you need along the way. It is important for you child to be seen regularly by their care team — even if they are not sick — to ensure they are growing and developing as expected.


Well-Woman Exams

Our providers offer care for every stage in a woman's life. Preventive care is the focus of our well-woman exams through clinical breast exams, Pap smears, complete physicals, and laboratory work. Promise is committed to answering your questions and taking time to learn about your health.


Iowa Care for Yourself Program

Our staff can assist eligible women with enrolling in the Iowa Care for Yourself Program. This program provides funding to low-income women for breast and cervical cancer screenings, including an office visit, mammogram, and, if eligible, a Pap test.


Family planning services

Promise offers a variety of options for women seeking family planning methods and counseling. Our providers will discuss your current situation and what options are best for you. Call 712-722-1700 to schedule a counseling visit with one of our providers.

To learn more about Promise's confidential, affordable family planning services, visit this page.


STD Screening

We are one of the 65 designated sites for the Iowa Department of Public Health’s Sexually Transmitted Diseases Program. Through this program, we can offer affordable STD testing, treatment, and counseling to individuals. All STD testing is completely confidential. Call 712-722-1700 to learn more about available testing.