Edgerton Veterinary Clinic

553 Lake Drive Road
Edgerton, WI 53534




Daniel Heder, DVM

Dr. Heder received his veterinary degree from the University of Wisconsin-Madison, School of Veterinary Medicine in 1987.  He served a small animal rotating internship at Cornell University's College of Veterinary Medicine from 1987-1988 and resident training in Radiology at the University of Wisconsin in 1990.  He currently lives in Milton with his wife Deb and their Wirehaired Pointing Griffon, Bocephus.  Dr. Heder's practice interests are in diagnostic imaging (ultrasound and x-ray) and using minimally invasive techniques to obtain tissue biopsies.  In his spare time he enjoys training his dog, fishing, hunting, camping and wilderness canoeing.



Terri Osgood, DVM, CVA

Dr. Osgood earned her veterinary degree from University of Wisconsin - Madison, School of Veterinary Medicine in 2003.  She and Dr. Heder became business partners in August 2013.  She lives in Stoughton with her husband Jim, her daughter Audrey, two dogs, and two cats.  Dr. Osgood's practice interests are in acupuncture, Chinese Medicine, and holistic treatments.  In her spare time she enjoys knitting, reading, bicycling, canoeing, gardening and spending time with her family.



Jamie Gerbig, DVM 

Dr. Gerbig earned her veterinary degree from the University of Wisconsin - Madison, School of Veterinary Medicine in 2011. She lives in Madison with her silly but very endearing beagle, Rodger. Outside of work she enjoys cooking, music, gardening, hiking in the many beautiful (and dog friendly) parks in the area, and spending time with family and friends.



Lori Rockwell

Lori Rockwell, DVM

Dr. Rockwell earned her veterinary degree from the University of Wisconsin - Madison, School of Veterinary Medicine in 2007.  She has been practicing in Kenosha, WI for the past 6 years in a small animal clinic.  Her practice interests are dermatology, animal behavior and rehabilitation therapy.  She grew up in Brodhead and is very excited to be practicing in south central Wisconsin near her family and friends.  She is currently living in Whitewater with her husband Randy, their 3 mixed breed dogs Sweena, Sophie, and Lulu and 21 year old cat Meleek.  In her free time, she enjoys training her dogs including a new hobby of teaching her border collie mix to herd sheep, boating, crocheting and spending time with her family.


Certified Veterinary Technicians

Cheri Dallman, CVT, Office Manager

Cheri is a 1989 graduate of MATC.  She joined our staff in 1999.  She and her husband Rich have two daughters, Kaleigh and Emileigh, a couple dogs, a cat, and a donkey, Radar. Cheri spends much of her free time training and showing her Australian Shepherds in agility competitions. She is very experienced in canine obedience and behavior.



Hilary Cox, CVT

Hilary is a 2010 graduate of MATC and has been working at EVC since summer of 2009. She currently lives in Edgerton with her husband Joe and her 3 black labs Gauge, Max and Ty! Her hobbies include reading, scrapbooking, riding Harley's, hiking and spending time with her family and friends! 



Jess Ziegler, CVT

Jessica is a 2009 graduate from MATC and joined our staff in the fall of 2010.  She recently moved to a new home in Janesville with her boyfriend Adam, two cats (Callie and Rocky), and dog (Kera).  Jess enjoys camping, being with friends and family, movie nights, and crafts. 



Jackie Westbury, CVT

Jackie is a 2003 graduate from MATC, and joined EVC in 2013.  She has an interest in physical rehabilitation and has taken several continuing education courses in this subject.  Eventually she'd like to incorporate what she’s learned in performing physical therapy on animals.  Jackie and her husband Jason live in Stoughton with their Labrador "Leah Mia" and bullmastiff "Mabel Ann".  Jackie's hobbies include "do it yourself" projects, maintaining her online jewelry shop, and being active outdoors. 



Brian Klug, CVT

Originally from Allentown, PA Brian has a Certified Veterinary Technician degree from MATC in 2005. Brian began working at Edgerton Veterinary Clinic and Lakeland Veterinary Imaging in early 2013. Brian and his lovely wife, Sara, welcomed their son Jameson in January of 2009 and daughter Lyla in November of 2012. Other members of the family include his two dogs (Buddy and Hazel) and three cats (Jasper, Captain Crunch, and Romeo).  Aside from keeping up with everyone at home, Brian also enjoys fishing, hunting, soccer, snowboarding, skateboarding, frisbee golf (frolf), ATVs, and remodeling his family’s home. 



Tracey Kelty, CVT

Tracey is a 1998 graduate of MATC.  She worked at EVC from 2000-2003, and happily rejoined our staff in December 2013.  She lives just outside of Edgerton with her husband, two children, four cats, two guinea pigs, and dog.  When not at EVC, she is kept busy with her business Heart & Home Pet Sitting.  In her spare time, she enjoys spending time with her family, hiking, reading, and going to car shows (especially with her 1957 DeSoto).



Tracy Singer, CVT, Groomer

Tracy interned at Edgerton Veterinary Clinic starting in June 2013, joined the team officially in August 2013, and graduated from MATC in the Spring of 2014 with a degree in Veterinary Technology and has since become a Certified Veterinary Technician.  She also has training in grooming and is excited about the opportunity to start growing the grooming aspect of Edgerton Veterinary Clinic.  

She recently moved to Stoughton, but is originally from Delafield. She has a zoo at home consisting of two dogs, a cat, a rat, a few fish, four crested geckos, two bearded dragons, one Chinese water dragon, a western hog nose snake and her boyfriend, Will. Besides her love for animals she enjoys baking, painting, and spending time with her ever-growing family. 




Kelsey, Zimmerman, CVT

Kelsey earned her degree in Veterinary Technology from Globe University in 2011 and became a Certified Veterinary Technician in the summer of 2011.  Upon graduation, she spent some time interning in the Cayman Islands working with marine mammals.  Kelsey began working for Lakeland Veterinary Imaging and Edgerton Veterinary Clinic in May 2014.  Kelsey currently lives in Stoughton with her dog, Chauncy and turtle, Casanova.  In her spare time, Kelsey enjoys being outdoors, doing adventurous activities, paddle boarding, running and working out, spending time with friends and family, and traveling.  



Pam Gillitzer, CVT

Pam is a 1988 graduate of MATC.  She joined our staff in Sept, 2014, and also works in the Critical Care Unit at the UW-Veterinary Teaching Hospital.  Pam lives in Janesville with her boyfriend Dave, Lab "Ella", Aussie "JC", kitty " Emily", and a cockatiel "Charlie".  Pam enjoys  training and showing her Aussie in Obedience and Herding, hiking, gardening, and reading.  She also enjoys spending time with her son who is currently going to college in Madison.  Pam also teaches Puppy Kindergarten classes at the Janesville-Beloit Kennel Club and enjoys  studying dog behavior and helping people with behavior issues.


Office Staff

Connie Roberts

Connie has been employed by EVC since 1991.  She enjoys spending time with her husband Randy, along with her bulldog (Emma).  Her hobbies include needlework, knitting, reading, and gardening.  She also enjoys bead work and making jewelry.




Caycee Dary, Receptionist and Veterinary Assistant

Caycee joined the Edgerton Veterinary Clinic team in October 2014 and is very enthusiastic and excited to start her career in the veterinary field.  Caycee currently attends Globe University in the Veterinary Technology program with graduation in June of 2015.  In her spare time, she loves spending time outdoors, being active, remodeling her home, and spending quality time with her family and pets.  She recently moved to the area with her boyfriend Chris and their cat Tinker.