Meet the Doctors

The Partners:

Dr. Dave Smits

Dr. Dave Smits was raised on a cattle ranch south of Wiggins, CO. He graduated from Colorado State in 1989, and has been practicing in Fort Morgan since 1993. Dr. Smits enjoys working on both small and large animals, but is especially interested in food animal medicine.


Dr. Melissa Smits

Dr. Melissa Smits graduated from CSU in 1989. She practiced in Salem, MA for 4 years before moving to Fort Morgan in 1993, and has been here ever since! Dr. Melissa works part time and is our only exclusively small animal veterinarian.


Dr. Adina Walker

Dr. Adina Walker graduated from Kansas State University College of Vet Medicine in 2003. She joined FMVC in July 2005 and became a partner in the practice in October 2008. Her favorite part about working at the clinic is that the variety of species she sees each day means never having two days exactly alike!



Dr. Tiffany McGregor

Dr. Tiffany McGregor grew up in small towns throughout Wyoming, Nebraska, and Colorado. She went to undergraduate in Laramie, WY before veterinary school at Colorado State University. She graduated in May 2014 and started here in July 2014. Dr. McGregor became a partner in the practice in April 2017. She particularly enjoys beef cattle medicine. In her free time, she loves spending time with her family.


The Associates:

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Dr. Diane Roggenthen

Dr. Diane Roggenthen was born and raised in Tucson, Arizona. She graduated from Midwestern University in 2018 and began working at FMVC shortly after graduation. She enjoys working on equine and food animal patients. In her free time, she rides and shows her horse.