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Dr. Millie Armstrong

Dr. Millie was born in Burlington and grew up in Pennsylvania. (Go Flyers!) She worked in pharmaceutical research before going to veterinary school at the University of Tennessee in Knoxville. Dr. Millie worked in various small animal clinics in Vermont before settling into Petit Brook Veterinary Clinic in 2000.  She is very active in the Vermont and New England Veterinary Medical Associations. She is a huge fan of wiggly boxers but does not have one of her own at the moment. Her cats Percy and Emma have trained her well and allow her to live with them!

Dr. Michael Tanneberger

Dr. Mike grew up in Connecticut and graduated from the University of Connecticut before attending veterinary school at Cornell University.  Prior to his arrival at Petit Brook, he was a partner in a large mixed practice in Northern, NY and then a small animal practice here in VT.  From his perspective, sharing information with clients and having them involved in decisions about their pets are the cornerstones of veterinary medical practice.  He is involved in coaching softball, basketball and Odyssey of the Mind with his wife and children.  He loves hiking and being on the lake.  His dogs have included everything from dachshunds to great danes.  At home he enjoys the antics of his family cat Flash.


   Dr. Adrienne Snider

  Dr. Adrienne grew up in Essex Junction and attended the University of Vermont (go Cats go!).  Prior to attending veterinary school, she milked cows at the UVM dairy farm, cared for penguins at the New England Aquarium, and worked as a veterinary technician.  Dr. Adrienne graduated from veterinary school at Western University of Health Sciences in Pomona, California.  She was able to tear herself away from the sunny beaches of southern California and is happy to have returned to the Green Mountains.  Dr. Adrienne has a special fondness for hound dogs and enjoys running, baking, cheering on the Red Sox, and boating on Lake Champlain.  

Dr. Alice McCormick

  Dr. Alice grew up in Lexington, Massachusetts and completed her undergraduate studies at Middlebury College. She traveled down south to attend veterinary school at the University of Pennsylvania where she studied small animal and equine medicine and finally understood why people love Spring (no mud!). Happily returning to New England, (home of the Patriots!) she practiced emergency and routine small animal medicine in Massachusetts for several years before moving to Vermont. She now lives in Fletcher with her husband, coonhound mix Clark (pictured above) and two cats, Pepper and Benton. In her free time, she can be found running, hiking, biking, skiing, playing soccer, gardening, cooking or curling up with a good book.

Angie, Office Manager

Angie is the Office Manager here and also a certified Veterinary Technician. She is a graduate of Vermont Technical college with an Associates Degree in Veterinary Technology.  Veterinary medicine has always been a passion of hers and she has been either working or volunteering in the Veterinary field for over 16 years.  Pictured above is her dog, Penny!

Chris, Certified Veterinary Technician

 Chris has been a member of the Petit brook Veterinary Clinic staff for over 22 years!  She graduated from St. Michael's College in 1988 with a BA in Fine Arts.  She serves in all capacities of the clinic and in 2005 passed the Veterinary Technician National Exam. She is a member of the Vermont Veterinary Technicians Association with a special interest in behavior.  She has an exuberant cat, named Spartacus and her corgi, Gimli, keeps the staff in line!

Amanda, Veterinary Technician

Amanda has been a technician for 9 years now. She has been at Petit Brook Veterinary Clinic for 8 years. Amanda is our social media lady and keeps our Facebook page fun and full of information. She has a special love for giant breed dogs. She shares her home with her husband, her son, daughter, a lovable English Mastiff named Paige and an adorable white cat named T-Rex. 

Ari, Veterinary Technician


Ari is originally from Portland, Maine. Ari has been part of the Petit Brook family for 5 years now!  She graduated from the University of Maine with  a bachelors in Animal Science, and moved to Vermont after graduation. In her spare time she likes horseback riding and doing agility training with her two dogs Riley and Whitten.  

Alysha, Veterinary Assistant 

Alysha has been a part of the Petit Brook team since August 2015. Alysha is a native Vermonter but spent 4 years in New Hampshire to pursue a Bachelor's Degree in Biology. Alysha is passionate about both furry and scaly creatures. She currently takes care of our resident fish friends. When Alysha isn't working, she enjoys spending time with family, kayaking, and playing with her fluffy cat, Willow.

Cara, Client Service Representative 

Cara joined the Petit Brook team in early May of 2016. Cara has worked in the large animal field of veterinary medicine and grew up on a dairy farm in Milton.  She has always had a passion for the small animal field and is excited to be a part of Petit Brook. She’s an avid horsewoman, competing in dressage on her two warmbloods, Ido and Owen.  

Caitlin, Certified Veterinary Technician

Caitlin joined the Petit Brook team in May 2016. She grew up in the White Mountains of northern New Hampshire. Caitlin graduated from SUNY Canton in New York with a degree in Veterinary Technology. In her spare time, Caitlin enjoys quiet time at home with her dog Blue, baking, and crochet.

Jacqlene, Veterinary Assistant

Jacqlene is a avid animal lover and grew up on a small horse farm in northern New Jersey. She moved to Vermont to pursue a degree in biology with a concentration in pre-veterinary medicine from UVM and hopes to become a veterinarian one day. Before starting at Petit Brook Veterinary Clinic, she cared for furry creatures at a wildlife refuge and worked at a therapeutic horseback riding organization.

Jules, Veterinary Assistant

Bio coming soon

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