Our Veterinarians

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Dr. Timothy Guild
Dr. Timothy Guild
Co-Owner, Veterinarian
Dr. Timothy Guild was only a little boy when he decided that he would one day become a veterinarian. He set that goal when he was young and didn’t waver from it once—Dr. Guild is grateful every day for the opportunity to help pets and their owners as a veterinarian! He’s the proud co-owner of Walnut Lake Animal Hospital along with his business partner, Dr. Rollo.

Dr. Guild is from northern Michigan and worked in his uncle’s veterinary clinic for several years during late high school and early college. He attended Michigan State University to obtain his Bachelor’s degree in science, then headed to the Caribbean to earn his veterinary degree at Ross University’s School of Veterinary Medicine. Dr. Guild completed his clinical work at a large animal hospital in Chicago, working closely with board-certified veterinarians to learn advanced skills and procedures, before graduating as a licensed veterinarian and returning to Michigan to launch his career.

Drs. Guild and Rollo took over Walnut Lake Animal Hospital from the previous owner in March of 2018, and they’ve been caring for the area’s pets here ever since. Dr. Guild has a special passion for surgical work, but his favorite part of his job is meeting families and getting to know them over the years. Nothing beats making sure that a family’s beloved animal companion stays happy and healthy for a lifetime.

Away from the office, Dr. Guild is an avid golfer—he recently had the opportunity to visit Scotland and play on the first 18-hole golf course ever made!—and he also loves to spend quality time with his family and pets. Along with his wife, Betsy, and their two young children, Ellie and Henry, he shares his home with one pet: Woody, a goofy Irish Setter who never fails to put a smile on Dr. Guild’s face.
Dr. W. Andrew Rollo
Dr. W. Andrew Rollo
Co-Owner, Veterinarian
Dr. W. Andrew Rollo grew up in Franklin, Michigan, where his childhood Yellow Labradors made a lasting impression. Their outsized personalities and never-ending unconditional love convinced Dr. Rollo of one thing: our animal companions needed to be properly protected and cared for in order to live the happiest, healthiest lives possible. That’s why he became a veterinarian!

Dr. Rollo attended Michigan State University for his undergraduate studies and remained at the university to earn his veterinary degree. He secured his first job at a pet clinic in Gibraltar, then moved back to Oakland County and signed on with another hospital after his son was born. In March of 2018, Dr. Rollo became a member of the Walnut Lake Animal Hospital family as a co-owner and veterinarian—he couldn’t be happier to serve the pets and animal parents of the community where he grew up!

Medically, Dr. Rollo is passionate about cardiology work and enjoys giving pet parents the answers they seek through the power of echocardiograms. He’s also fond of dentistry, and is proud to add tooth bonding to the clinic’s treatment options in 2020. Most of all, Dr. Rollo loves interacting one-on-one with pet owners just like himself on a daily basis.

Along with his wife and children, Dr. Rollo shares his life with two dogs, Linus and Lucy, who constantly keep the whole family on their toes.
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