Mattawan Animal Hospital

Providing Quality Pet Care Since 1976

50588 CR 652

Mattawan, MI 49071


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Dr. Thomas E. Griffiths


Dr. Thomas Griffiths was born and raised in Eastern Michigan. He attended Morehead State University in Kentucky and then moved back to Michigan to complete his bachelors degree in Zoology at Michigan State University. He continued on at MSU to obtain his doctorate in veterinary medicine in 1967. Shortly after, Dr. Griffiths married his wife of 39 years and they had four children, all of whom still reside in the southwest Michigan area. 

In 1976, Dr. Griffiths founded Mattawan Animal Hospital. Dr. Griffiths became certified in veterinary acupuncture through the International Veterinary Acupuncture Society. He currently utilizes acupuncture as a complement to traditional Western Medicine.

Dr. Griffiths has a dog and a cat. He has numerous hobbies including woodworking, traveling, exercise, reading and Spanish culture.


Dr. Christine Williamson

Dr. Christine Williamson was raised in Southwest Michigan.  She obtained her associates degree in Chemistry from Kalamazoo Valley Community College. In 1992, she transferred to Michigan State University where she pursued a bachelors degree in Physiology.  She completed the Physiology degree in 1995 and then a post-baccalaureate degree in education in 1998.  

Dr. Williamson and her husband lived in Lansing while she attended Michigan State University's College of Veterinary Medicine.  After she graduated in 2002, the couple moved to the Southwest Michigan where Dr. Williamson began her fulfilling career at Mattawan Animal Hospital.

Since that time, the family has increased to include children, two retrievers, a cat and a fish. Dr Williamson enjoys spending time with friends and family, reading, aerobics, running, and gardening.


Dr. Kelly Flanagan

Dr. Kelly Flanagan, MS, DVM, is a graduate of The Ohio State University College of Veterinary Medicine. Although she's a proud Buckeye, Dr. Flanagan is a native of the Kalamazoo area. In order to pursue her master's degree in biology, she moved to Ohio and ended up living there for ten years. With her family in tow, she moved back to Southwest Michigan after 20 long years due to her love of the area and close proximity to family.  

Dr. Flanagan is married to Bill, a herpetologist (reptiles and amphibians), and they have two adventurous children that love animals and the outdoors.  They have two dogs, two cats, two snakes, a red-eyed tree frog, poison dart frog adults and tadpoles, and several fish!  She enjoys bird watching, photography, knitting, and traveling abroad.

Dr. Flanagan loves working with the great doctors, staff and clients at MAH.  She has special interests in veterinary dermatology and dentistry and has additional training in veterinary dentistry and  zoo medicine. In addition, she especially enjoys mentoring students that are interested in the veterinary field.






  Dr. Dawn Gallagher Tulson

Dr. Dawn Gallagher, DVM, is a 2006 graduate of Iowa State University College of Veterinary Medicine.  She started on her veterinary path at the Pennsylvania State University where she received her Bachelors degree in Biology with a Genetics Concentration.  After graduation she started veterinary school at the University of Glasgow, Scotland (United Kingdom), then transferred to ISU to finish her veterinary degree.  Dr. Gallagher has lived all over the U.S. but after receiving her DVM, moved to Southwest Michigan to be close to her parents.  Her veterinary interests include acupuncture, neurology, and new puppy/kitten check-ups.

Dr. Gallagher enjoys spending time with her husband, Eric, son, their dog, Dash, and horse, Mater.  She also enjoys showing Mater, traveling, swimming and reading.

Dr. Corey Cohle

Dr. Corey Cohle is a 2014 graduate of Michigan State University College of Veterinary Medicine.  He grew up in Grand Rapids, MI and attended Alma college where he obtained a BS in Biology in 2002.  He has lived in Portage since 2002.  After working in Mattawan for five years, he decided to fulfill his dream of becoming a veterinarian and went back to school.

Dr. Cohle lives with his wife, Elisa, and two Saint Bernards, Sampson and Daisy.  He enjoys golf, softball and traveling.  He and Elisa are regulars at Detroit Tigers games and other college and professional sporting events.

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