X

Jay Mattison

CEO

National DHIA

P.O. Box 930399
Verona, WI 53593 USA

Jay Mattison

CEO

info

X

Steven Sievert

Certification Services

National DHIA

P.O. Box 930399
PO Box 930399
Verona, WI 53593 USA

Steven Sievert

Certification Services

info

X

Leslie Thoman

Accounting/Bookkeeping

National DHIA

P.O. Box 930399
Verona, WI 53593 USA

Leslie Thoman

Accounting/Bookkeeping

info

X

Kim Hill

Customer Support Specialist-Herd Portal

National DHIA

PO Box 930399
Verona, WI 53593 USA

Kim Hill

Customer Support Specialist-Herd Portal

info

Last Update: 12/10/2025