Provider List


Del Lassen, M.D. / Medical Director

Area of Specialty: Family Medicine

Started: April 2010

Education: University of Iowa College of Medicine

Hometown: Sioux Center, IA

Immigrants who apply for lawful permanent resident status in the United States are normally required to undergo a medical examination. Immigration medical examinations in the United States must be performed by a civil surgeon who has been designated by U.S. Citizenship and Immigration Services. Travel and costs associated with this required medical examination were a hurdle for many community members. Dr. Lassen, with Promise, is now designated as a civil surgeon, which provides community members with an affordable and local option for this required examination.


Beth Strub, A.R.N.P.

Area of Specialty: Women's Health

Started: July 2008

Education: St. Joseph Mercy School of Nursing, Sioux City, IA; Drake University, Des Moines, IA 

Hometown: LeMars, IA



Tana Kass, A.R.N.P.

Area of Specialty: Family Practice

Started: February 2015

Education: Briar Cliff University, Sioux City, IA, 2013

Hometown: Le Mars, IA

To learn more, read this profile story.



Pam Hulstein, C.N.M.


Area of Specialty: Women's Health, Nurse Midwifery

Started: March 2010

Education: University of South Florida, Tampa, FL; Case Western Reserve University, Cleveland, OH; Frontier Nursing University, Hyden, KY; University of Arizona, Tucson, AZ

Hometown: Sioux Center, IA



Belinda Lassen, C.N.M.


Area of Specialty: Women's Health, Nurse Midwifery

Started: September 2013

Education: Medical University of South Carolina

Hometown: Sioux Center, IA



Dr. Kenneth Tjeerdsma

Area of Specialty: Dental Medicine

Started: July 2015

Education: Creighton University, 2010; Creighton University Dental School, Omaha, NE, 2015.

Hometown: Orange City, IA

To learn more, read this profile story.



Rebecca Hooyer, R.D.H.


Area of Specialty: Dental Hygiene 

Started: July 2015

Education: Northwest Iowa Community College, Sheldon, IA, 2011; Iowa Western Community College, Council Bluffs, IA, 2014.

Hometown: Sioux Center, IA

To learn more, read this profile story.