Meet the Dog Experts

Our dog experts offer a wealth of information on health, safety, nutrition and dog behavior. Dogtopia employs an environmental biologist, a veterinary scientist and a canine behaviorist to ensure the highest level of safety in all our locations.

Puppy and Canine Coach
Colleen Demling Training Circle Icon

Colleen Demling-Riley

Dog Behaviorist

With over 30,000 hours and 15 years of HANDS ON dog training experience, Colleen Demling-Riley is a Certified Professional Dog Trainer and Behaviorist. She is a frequent contributor to local and national media including Yahoo, The Huffington Post, Woman’s Day and many more. Colleen was a finalist for Entrepreneur of the Year by Women in the Pet Industry Network. She was also named a 2015 Woman of Influence and one of the Top 40 Under 40 by Pet Age Magazine. She’s ready to answer your questions related to puppy training, dog socialization and manners.

Doctor Joslin with Two Dogs Daycare Circle Icon

Dr. Antje Joslin


Dr. Antje Joslin brings 14 years of small animal experience in both private and corporate practice. Her love of animals is not just professional; along with her husband and four children, she shares her household with several loveable pooches. In her free time she enjoys many outdoor activities and traveling with her family. Dr. Joslin earned Bachelors degrees in Business Administration and German, as well as her Doctorate in Veterinary Medicine from Michigan State University. She can answer any questions you may have related vaccine protocol, general wellness like heartworm prevention, flea and tick, the spay and neuter process, first aid, and diet and exercise for a healthy weight.

Lorraine Rhoads with Lab Pledge Circle Icon

Lorraine Rhoads

Environmental Biologist

Lorraine Rhoads is an experienced animal biologist and environmental scientist with a background in environmental safety testing and biological surveys. Additionally, Lorraine has more than 6 years of experience managing veterinary hospitals and keeping up accreditations with the rigorous standards of the American Animal Hospital Association. Using her understanding of environmental science and canine health science, Lorraine is passionate about Dogtopia’s commitment to health and safety. Outside of her role at Dogtopia, Lorraine finds endless happiness as a wife and mother of three children and volunteers for Liberty Wildlife. Ask her questions related to safe doggie environments, including safety of toys, play equipment, car or travel safety, emergency preparedness and safe cleaning products and procedures.

Check Out the FAQs

Not sure if carrots and cucumbers are safe for your dog or how often you should trim their nails? Visit our Frequently Asked Questions to learn the answers! We frequently add new advice so check back often!

Read our faq



Ask a Question

Our doggie experts are here to answer your questions about health, safety, nutrition and behavior.

Foundation Logo

The Dogtopia Foundation enables dogs to positively change the world. To accomplish this, we currently are funding programs focused around three worthy causes: Service Dogs for Veterans, Youth Literacy Programs and Employment Initiatives for Adults with Autism.