Buffalo Companion Animal Clinic
1214 Hwy 25 N
Buffalo, MN 55313


7 am - 8 pm : Mon - Thurs

7 am - 6 pm : Friday

8 am - 12 pm : Saturday

Meet Our Team

John Merz, DVM, Practice Co-Owner

Dr. John Merz graduated from Iowa State University in 1989 and joined BCAC in 1990 as a mixed animal practitioner. Since 2001, he has practiced companion animal medicine exclusively and dentistry is one of the most interesting areas of practice for him. When not working at the clinic, Dr. Merz enjoys fishing, biking and spending time with his family.

Ron Moore, DVM, Practice Co-Owner

Dr. Moore has the honor of having been part of the Buffalo Companion Animal Clinic since 1985. (We're not saying he's the oldest guy here but he has been here the longest!)  After graduating from the University of Minnesota he interned at what was then the Buffalo Veterinary Clinic and never left. Growing up on a farm in Clear Lake, South Dakota, helped foster an interest and admiration for animals large and small.

Dr. Moore appreciates the support of Buffalo and the surrounding communities and continues to enjoy meeting new people and their pets and hearing their pet stories.  It has become evident to him over the years that positive relationships between animals and people improves the health and well-being of both and he is thankful to be part of that process.

He lives in an old house in Buffalo with his wife, Carol, and their recent new addition, Millie, the “Texas Terrier”! When he isn't at the clinic he enjoys spending time with family and friends and their furry friends. In addition, he enjoys traveling and the outdoors.

Jim St. Amant, DVM

Although Dr. Jim St.Amant was born in Gary, Indiana, he has lived throughout the upper Midwest, mostly in small towns and communities not unlike Buffalo.  He graduated from the University of Wisconsin, Madison, with undergraduate degrees in zoology and secondary education.  He considered an academic career or a career in zoological research, but wanted to put his knowledge and skill to a more immediate and practical use.  In addition, he wanted daily interaction with animals and their owners so becoming a veterinarian was the perfect solution.

After graduating from the University of Minnesota's College of Veterinary Medicine, Dr. St. Amant worked part-time for several metropolitan area veterinarians before joining BCAC in 1993.

Being a general practitioner on the front lines of veterinary medicine allows Dr. St. Amant to put his training as an educator to good use.  Veterinary medicine also provides satisfaction for his academic interests because there is always something new to learn from his colleagues, clients and patients.  Using these qualities to restore and maintain an animal's health and see the owner's joy at getting their pet back on track is one of the biggest rewards of being a veterinarian.

Dr. St. Amant is also an avid horticulturist.  From “common” houseplants to various species of exotic orchids, his knowledge of plants and careful nurturing results in beautiful, healthy plants.  His success is evident throughout the clinic where it is common to see plants blooming all seasons of the year.  When he's not at the clinic, Dr. St. Amant enjoys traveling with his wife and two children, agility training with his rescued Australian Cattle Dog mix, and relaxing with his other companion animals.

Ashley E. Mattson, DVM, Practice Co-Owner

Dr. Ashley Mattson grew up in Watertown, Minnesota. She was involved in FFA, 4-H and her family raised and showed sheep. Through raising lambs each spring, Dr. Mattson gained an interest in veterinary medicine. While attending the University of Minnesota's College of Veterinary Medicine, she worked at the Buffalo Companion Animal Clinic as a veterinary assistant. After graduating, Dr. Mattson found that BCAC was the perfect clinic to begin her veterinary career.

Dr. Mattson has a strong interest in internal medicine, especially for felines. She enjoys educating clients about disease processes in their companion animals. Dr. Mattson understands that client education and communication about a companion animal can strengthen the human-animal bond and ensure the best healing of a sick animal.

When not at the clinic, Dr. Mattson enjoys spending time with her husband and chasing around their two young sons. In addition to her sons, she shares her home with a dog, Nadene and two cats Baby and Danni Doobers.

Dr. Erlandson

Alyssa Erlandson, DVM, Practice Co-Owner

Certified in Veterinary Acupuncture

Dr. Alyssa Erlandson grew up in Monticello, Minnesota. She knew from a very young age she wanted to become a veterinarian. During high school, she worked as a kennel assistant at a local pet hospital. Dr. Erlandson received her BA in Animal Science from the University of Minnesota and continued her studies at the University of Minnesota College of Veterinary Medicine graduating in 2002. She spent the first 11 years of her veterinary career practicing at a small animal clinic in St. Cloud before joining BCAC in 2013.

Dr. Erlandson is also certified in veterinary acupuncture. She received her training from the Chi Institute in Florida in 2005. Acupuncture is an exciting alternative therapy that can be used as a solo treatment or in conjunction with an established care plan. It is effective in the treatment of many diseases, including arthritis and other causes of chronic pain, back disease, urinary incontinence, seizures, and chronic GI disease.

Dr. Erlandson and her husband are kept busy with their son and twin daughters. They share their home with their two cats, Potter and Snitch, and horses, Tonks and Freya. Dr. Erlandson enjoys reading, horseback riding and cheering her kids on at their carious activities.

Katherine Haupt, DVM

Dr. Haupt first joined BCAC as a veterinary assistant out of high school and into her undergraduate years at the University of Wisconsin-River Falls. After graduating from the University of Minnesota College of Veterinary Medicine in 2007 , she practiced small animal medicine in the twin cities area for about 10 years. From there she moved back home to Delano and re-joined BCAC in 2019 as a veterinarian.

Dr. Haupt enjoys many aspects of veterinary medicine, but her special interest include dentistry, preventative medicine, and feline medicine. She enjoys getting to know her clients and their furry friends so that together they can provide the best care possible for their beloved pets.

When she is not at BCAC Dr. Haupt is busy at home or school with her three young boys. She shares a home with two cats, Wembley and Toby, as well as her sister's eight pet goats.

Rita Sarvie, Practice Manager

Rita joined Buffalo Companion Animal Clinic in 1987. She attended St. Cloud State University and the Medical Institute of Minnesota. She believes learning is a lifelong process and continues to attend accounting and management classes. Rita grew up in Buffalo and has always felt a strong connection to the community. She is proud of BCAC for the tremendous growth the clinic has experienced over the years, while continuing the commitment to high quality, progressive medicine.

Rita and her husband have a cat, 2 dogs and 2 teenage children, all of which keep them very busy! When not at work Rita enjoys gardening, fishing and attending youth sporting events.

Veterinary Technicians

The Buffalo Companion Animal Clinic excels in many areas, one of these we are most proud of are our Certified Veterinary Technicians (CVT). Our technicians all have two years of advanced training that allows them to wear many hats. If we look at their equivalents in the human medical field they perform the same duties as:

  • Nurse
  • Laboratory technician
  • Radiography technician (x-ray)
  • Anesthesiology technician
  • Dental hygienist
  • Pharmacy technician
  • Phlebotomist
  • Surgical assistant
  • Nutrition consultant
  • Client educator

Kelly, Client services

Kelly started working at BCAC in September 2018. She previously worked at Hastings Veterinary Clinic for 16 years. She grew up on a hobby farm
in southern Washington County. She is a former 4-H member who kept very busy showing beef cattle, chickens, turkeys, horses and sheep at various
county and state fairs. Kelly attended the University of Wisconsin-River Falls. In her spare time she enjoys camping, gardening and spending time
with her husband and kids.

Heather, CVT

Heather went to the Minnesota School of Business where she earned her veterinary technology degree. She spent 5 years working at a local shelter and 5 years as an emergency technician before settling in to the Buffalo Companion Animal Clinic where she enjoys working with the many cats and dogs she has grown to love. Her interests include pain management and educating clients on the many aspects of animal care. When not at work, Heather enjoys photography, gardening and hanging out with her husband, dog and 2 cats.

Erica, CVT

Erica received her degree in veterinary technology from the Medical Institute of Minnesota. Erica has an avid interest in animal behavior. She enjoys learning as much as she can about the subject and sharing that information with clients. Erica has 2 young boys who enjoy karate and playing with the family pets. On her days off, she enjoys walking her dogs, spending time with her horse, and relaxing with a good book and a cat in her lap.

Bobbi, CVT

Bobbi received her CVT degree from Ridgewater College in 2000. She brings 7 years of veterinary emergency experience to the Buffalo Companion Animal Clinic. Bobbi also enjoys the study of ophthalmology and educating clients about obesity in pets. Outside of work, she enjoys fishing, gardening, snowmobiling, spending time with family and her golden retriever, Malcolm and border terrier, Kevin. Bobbi is also an avid Minnesota sports enthusiast and follows the Vikings, Twins and Timberwolves organizations.

Kim, CVT

Kim's love for animals was apparent while working for several years at a dog boarding facility. It was there that she was encouraged to take her care for animals a step further by enrolling in a veterinary technology program. After graduating from the Minnesota School of Business in 2006, she became part of the Buffalo Companion Animal Clinic team. Kim also has a love for art and has created a few different pieces to help promote animal wellness throughout the clinic. Outside of work, she enjoys spending time with her husband, 2 young children, family, friends, 3 cats, and a new wild haired dog that goes by the name "Birdie."

Erin, CVT

Erin graduated from Ridgewater College with a degree in veterinary technology. She has several years of experience in small animal clinics. Erin enjoys all aspects of veterinary medicine, but particularly likes surgery. In her free time, she enjoys camping, golfing, attending sporting events, and spending time with family. Erin and her husband share their home with their young daughter and an energetic spunky lab mix, Kira.

Mandy, CVT

Mandy received her degree from Argosy University in veterinary technology. She started at Buffalo Companion Animal Clinic as a veterinary assistant before graduating and has grown into a dedicated, hardworking technician. Mandy is interested in client education, anesthesia, and surgical procedures. When not at work, she spends her time with her husband and 3 children riding their ATVs, going to the cabin, and hanging out with family and friends. Mandy has a French Bulldog named Gurt and an Old English Bulldog named Vinnie. Both dogs enjoy hanging out and being a part of their family excursions.

Kaitlin, CVT

Kaitlin worked as a veterinary assistant at Buffalo Companion Animal Clinic while attending Ridgewater College for her degree in veterinary technology. After graduating in 2015, she joined the BCAC team as a certified technician. Kaitlin grew up on a dairy farm. So at a very young age, she acquired a love for helping and caring for animals. Outside of the clinic, Kaitlin enjoys spending time with her husband and dog, Ned, on their hobby farm. In addition, she loves getting together with family and friends.

Shelby, CVT

Shelby received her degree in veterinary technology from Ridgewater College in 2013. She is interested in animal dentistry and hopes to further her education in this area. During her free time, Shelby enjoys hiking, cooking and spending time at the lake with family and friends. In addition, she loves spending time with her Drahthaar, Auggie. He loves chasing after his ball and hunting pheasants.

Emily, CVT

Emily received her veterinary technology degree from Minnesota School of business in 2009. Emily has many years of shelter, small animal, and emergency medicine experience. She has an interest in client communication and education, a very important aspect of the veterinary world. In her free time Emily enjoys spending time with her husband, 2 children and their 6 "fur babies" - a border collie named Harlow, 2 labradors, Denver and Ginny, and 3 cats named Stewey, Corwin and Weasley. Emily also loves photography, gardening and camping.

Paige, CVT

Paige joined the Buffalo Companion Animal Clinic in 2018 after receiving her veterinary technology degree from Argosy University. Before joining BCAC, she worked at a boarding facility for 3 years. Paige has loved animals since a very young age and has always wanted to work in veterinary medicine. She is interested in internal medicine, animal behavior, surgical procedures and anesthesia. Outside of work, Paige enjoys the outdoors and spending time with family and friends. She has a dog named Rico and 2 cats, Lucy and Sally.

Kelly, CVT

Kelly had a unique childhood growing up on an exotic animal farm. This upbringing drove her love for animals. She earned her AAS degree in veterinary technology from Willmar Technical College. After graduation Kelly worked here for a short time. She then followed her heart to a zoological garden. Since then she worked with a traveling petting zoo and eventually found her way back to the BCAC. Kelly loves dentistry and comforting those in need. Outside of work she enjoys photography and spending time with her very active family.

Stefany, Client Services

Stefany started at BCAC as a veterinary assistant in 2011 before settling into her position as a client services specialist. When not at work (which isn't "work") she spends her time gardening, cooking and playing on the lake with her husband and two sons. Her Great Dane, Roxy, loves to come to the clinic as much as Stefany.

Carlos El Gato, Clinic Cat

Carlos' charm and captivating appeal with the patients and clients have made him a favorite around BCAC. He has been featured in our holiday card and has been an inspiration to a local artist. Carlos' outgoing personality and genuine concern of his fellow furry friends has inpired many new friendships.