Our Veterinarians

Susan Bloss, DVM


Dr. Susan Bloss, along with her husband, Greg, are the former owners of Cheyenne Mountain Animal Hospital. Dr. Bloss continues to do what she does best…caring for your pet.

Dr. Bloss is a graduate of Oklahoma State University School of Veterinary Medicine.  She is a member of many veterinary groups, including the local, State, and  National Veterinary Associations.  Due to her special interests, she is a member of the American Association of Veterinary Dermatologists and the American Association of Feline Practitioners.  In addition, she attends many continuing education seminars to keep current with the latest in diagnostics and treatments.

The critters who complete the Bloss household join together to make one big happy family. Mittens, a pearl gray cat who deals with her head trauma handicap with a happy outlook—her favorite activity is to find her “spot in the sun” (through the window as she can’t be allowed outside).  Then Leia, the full of energy golden retriever who just needed a home, lots of love and exercise, and plenty of friends to play with.  Completing the family is Pete, the Great Pyrenees. Adopted from neighbors moving to Brazil, the big loveable guy fits right in. Each with their own history of abuse, neglect, or need, they have all found their purrfect home.

Gretchen Kasameyer, DVM


Dr. Kasameyer has been a veterinarian since 1997 after graduating from our own Colorado State University. After graduation, she spent a year in Caribou, Maine then came to us here at Cheyenne Mountain Animal Hospital in 1998.  She had a brief respite from the daily commute from Denver to work at the Animal Hospital Center, a 24 hour emergency center in Denver, until she returned to the Springs and she has been here ever since! 

She enjoys all that Colorado Springs has to offer including hiking, camping, and great motorcycle weather. Dr. Kasameyer is involved in wildlife conservation, environmental stewardship, and trying to keep our government in line! Her own pets have been varied and many but currently she owns Tater and Coleslaw, two sibling English Bull Terriers. 

Mason Miller, DVM


Dr. Mason Miller is a Colorado native originally hailing from the lovely town of Durango, CO. He recieved his Bachelor’s of Science from Fort Lewis College and went on to pursue his dream of becoming a veterinarian, completing his studies and earning a DVM from Colorado State University School of Veterinary Medicine. He loves camping, golf, and playing board games with his wonderful wife Emily. He is a huge film buff and enjoys cuddles and kisses from his adorable pug, Daisy. 

Jack Pierce, DVM


Dr. Pierce is from Atlanta, GA, but has lived in Colorado since 2011. His academic achievements include earning a Bachelor of Science Degree from Georgia State University, an Associate of Applied Science in Veterinary Technology from Colorado Mountain College, and a Doctorate in Veterinary Medicine from Colorado State University. His favorite aspects of veterinary medicine are surgery, dentistry, and helping strengthen the bond between people and their pets. Away from work, Dr. Pierce and his wife Dana enjoy snowboarding, hiking, camping, off-roading, and spending time with their three dogs: Queen Lucy the Frenchie, Ruby the Great Dane, and Zaxby the Boston Terrier.

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