As they become available, Prairie Business highlights the region's new hires and promotions. This week's new-hire spotlight includes the following:

TSP design tech earns additional certification

SIOUX FALLS, S.D. • Evan Caldwell, design technician at TSP Inc., recently earned additional professional certification. He’s part of our Sioux Falls office, creating digital models and contributing to construction documents in our fully integrated, multidisciplinary architecture, engineering, and planning firm.

Caldwell now is a CDT-certified specialist. The designation means he has completed advanced training and testing in Construction Documents Technology. The comprehensive program encompasses topics such as writing, interpreting, enforcing, and managing construction documents.

The company said it is one more set of skills in Evan’s toolbox to give TSP clients the highest value and enable them to move forward with confidence in their projects. The CDT curriculum, designed and administered by the Construction Specifications Institute, takes learners on a full tour through a project’s life cycle.

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Caldwell earned his associate of applied science degree in architectural engineering technology from Southeast Tech. He put that learning to use for a structural firm before joining TSP in September 2019.

Essentia Health recently welcomed several new doctors

FARGO, N.D. • Dr. Olayinka David Ajayi has joined the Essentia Health team in Fargo, where he specializes in hyperbaric medicine. Hyperbaric oxygen therapy is a noninvasive, painless procedure that uses 100% oxygen in a pressurized chamber to improve the body’s natural healing process, treat carbon monoxide poisoning and other FDA/UHMS approved medical conditions.

Dr. Ajayi received his medical education at the University of Ibadan College of Medicine, Nigeria. He earned his master’s degree in public health and completed a residency in public medicine at Emory University Public Health, Atlanta, Ga. His fellowship in undersea and hyperbaric medicine was completed at Hennepin Healthcare in Minneapolis, Minn. Ajayi is board certified by the American Board of Medical Specialties in public health and general preventative medicine.


Nurse Practitioner Sheila Kinzler, who specializes in behavioral health is now welcoming patients at the Essentia Health-Jamestown Clinic.

Kinzler earned her master’s degree in nursing from Walden University in Minneapolis, Minn. She is certified as a psychiatric/mental health nurse practitioner by the American Nurses Credentialing Center.

Kinzler grew up in Jamestown and said she is excited to stay in her hometown and help the community.


Dr. Bertha Ayi, who specializes in infectious disease is now seeing patients at Essentia Health-32nd Avenue Clinic in Fargo.

Dr. Ayi earned her medical degree at the University of Ghana Medical School in Accra, Ghana. She completed a residency in internal medicine at MedStar Good Samaritan Hospital in Baltimore, Md. and a fellowship in infectious disease at Creighton University Medical Center in Omaha, Neb. Ayi is board certified in infectious disease by the American Board of Internal Medicine.

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