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Ready to serve Northwest Iowa!

Sioux Center, IA • Spencer, IA

Dr. Dan Hiserote, DDS MS

"Dr. Dan" is a northwest Iowa native, attended Briar Cliff University, the University of Iowa College of Dentistry, and endodontic specialty training at Saint Louis University Center for Advanced Dental Education. He lives with his wife and two sons in Sioux Center. When he's not doing root canals, Dr. Dan enjoys spending time with his family, golfing, and watching anything Hawkeyes.


Albani Hiserote, Office Manager

Albani Hiserote grew up in Sioux City where she met Dr. Dan at the local Dairy Queen. After helping put him through college, dental school, and specialty training, she is not about to stop now! As the Office Manager, Albani will take care of patient accounts, insurance claims, and billing. She'll also make sure the office runs as smooth as possible.

In her spare time, she loves to spend time with her family, travel, and spend her summers in Okoboji.

Lorena Driesen, Lead Assistant

Lorena Driesen graduated from Rock Valley Community School in 2016. She attended WITCC Dental Assisting program and has her CDA and RDA certificates. She joined our NWI Endo team after graduation. She is microscopically endodontically trained and has been with our office since 2018. In her spare time, she enjoys spending time with her family and her husband.

Kori Wellendorf, Front Desk Receptionist

Hi! I'm Kori Wellendorf. I recently just joined NWI Endodontics! I'm orginally from Minnesota, but moved to the area fourteen years ago. My husband and I have been married for six years, but have been together for fifteen years. We have three beautiful children, along with three dogs. In my spare time, I like to shop and bake, along with watch the Vikings and Hawkeyes play football.

Callie Varner, RDA

Callie Varner graduated from North Union High School in Armstrong, IA. She joined NWI Endodontics in 2024. She is microscopically endodontically trained. She has one little boy that she loves to make memories with. In her free time, she loves to travel and spend time outdoors.