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Jack Hertel, Owner

Jack is a native of Michigan, living in Essexville for a majority of his life. He is a graduate of Garber High School, and Saginaw Valley State University, where he has B.S. in science and chemistry. He is a technology enthusiast and has used those skills to build a career with computers. Jack has known Dr. Francke his entire life, and became partners in purchasing M20 Animal Hospital in 2003. He has been a long time cat and dog owner, currently being the proud owner of three cats. 


Bruce W. Francke, DVM & Owner

Dr. Francke is a Tri-City native and a graduate of Michigan State University College of Veterinary Medicine. His clinical interests include surgery (orthopedic and soft tissue), preventative medicine, dermatology and cancer medicine. 


Tessa Peterson, DVM

Dr. Peterson graduated from Gustavus Adolphus in Minnesota in 2001 with her bachelors degree and from Iowa State University College of Veterinary Medicine in 2005.  Originally from Colorado, Dr. Peterson joined the practice at M-20 Animal Hospital part time in 2009.   Dr. Peterson has special interests in internal medicine, surgery, ultrasound and pocket pets.  When not working she enjoys spending time with her husband Jon, two sons and their dogs (Mason a Boxer-German Shorthair cross and Joules a Collie Mix).   They enjoy traveling across the U.S. and internationally to visit family and friends



Sarah Gushow, LVT

Sarah Gushow is our Licensed Veterinary Technician. Following her graduation from Baker College in 2009, she joined our team in 2011 coming from our sister clinic Bay Animal Hospital in Essexville. We are delighted to have such a wealth of knowledge on our team. Sarah comes to us with 12 years experience working in veterinary medicine. In her free time Sarah enjoys spending time outdoors with her two children, Carter and Lauren, her husband Craig, her Standard Poodle Charlie, and her misfit cat Gus Gus. 


Aleshia McGraw, Veterinary Technician

Aleshia joined our practice in 2013 with over 15 years of experience in the Veterinary profession.  She is an enthusiastic and compassionate member of our team who you will always see with a smile on her face.  Aleshia, her husband Shaun, and 3 children love to  play and watch sports especially the Detroit Tigers. 


Tara Johnson, Receptionist/ Veterinary Assistant

Tara comes to M-20 with a deep passion for animals, she joined our team in 2013.  She enjoys traveling and has spent some time in Ireland/England. Tara enjoys playing softball, and taking her best buddy Linus on walks. 



Jaime Charkowske, Veterinary Assistant


Melissa Harper, Receptionist



Brittny Rounds, Housekeeping

Kalli Walz, Housekeeping

Julie Charbonneau, Housekeeping

Exclusive Offer

New patients receive $10 OFF first wellness visit.

Office Hours

DayMorningAfternoon
Monday9am5pm
Tuesday9am5pm
Wednesday9am6pm
Thursday9am5pm
Friday9am5pm
SaturdayClosedClosed
SundayClosedClosed
Day Morning Afternoon
Monday Tuesday Wednesday Thursday Friday Saturday Sunday
9am 9am 9am 9am 9am Closed Closed
5pm 5pm 6pm 5pm 5pm Closed Closed