Our TeamWe are extremely proud of our dedicated team. We hire only the best and most experienced employees to become a part of our team here at All Creatures Animal Hospital. Our team is filled with highly dedicated animal lovers who are well trained at their jobs. They will do anything possible for their patients and the owners who love them.

Learning and education are very important here at All Creatures Animal Hospital. We strive to have a state of the art hospital with a staff trained in the latest medical advances. Our patients deserve the very best veterinary care.

Basically, our team is full of animal lovers. They make it a goal to treat each patient like their own. They give each patient plenty of love and attention. They are prepared to discuss preventative medicine so that every pet can stay as healthy as possible. They will also do everything that they can to make a sick pet feel better as soon as possible.

If you would like to speak to someone on our team, don’t hesitate to contact us today at (920) 739-4122.

Robert L. Sieber, DVM, MS

Graduated in 1975, from the University of Minnesota with a Bachelor of Science and Doctor of Veterinary Medicine in 1977.
In 1979, he graduated with a Masters degree from the University of Minnesota. His special interests are in orthopedic surgery for all species and in avian medicine. He is originally from Appleton and his hobbies include: trail riding, computers, reading, and maintenance engineering.

Margaret L. Orzel, DVM

In 1977, graduated from the University Minnesota with a Bachelor of Science in Animal Science and in 1982 graduated with a Doctor of Veterinary Medicine degree. Her special interests are feline medicine and exotics medicine. She is originally from Milwaukee and her hobbies include: dog agility, trail riding, reading, and yoga.

Keri Weyenberg, DVM

Graduated in 2014 from University of Wisconsin of Veterinary Medicine with a Doctor of Veterinary Medicine degree. Her special interests are geriatric medicine, behavioral issues, and feline medicine. She is originally from Milwaukee and her hobbies include gardening, hiking, and spending time with her family.