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Our Veterinarians

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Our Veterinary Hospital Staff

  • Evie Fredenburg
    Practice Manager

    Evie has worked for Greenfield Animal Hospital since Jan 2001. She spent two years at Central Michigan working towards a degree in anthropology. She has 3 cats. Outside of work, Evie enjoys playing the bass. When asked what she liked most about working for Greenfield Animal Hospital, she answered, 'The compassion exhibited to all animals by the entire staff. It makes me proud to be employed here.' You can reach Evie at greenfieldah@gmail.com

  • Tracy Mattis
    LVT

    Tracy Deuel has been employed at Greenfield Animal Hospital since 1993. She received her degree in Veterinary Technology from Wayne State University in 1996. Tracy is very passionate about small animal anesthesia and surgery. She has two teenage daughters, 2 dogs, 6 cats (including one born with no eyes), a frog named Nelly, and a horse! She enjoys riding and jumping horses in her spare time.

  • Lori Glaza
    LVT

    Lori Glaza has always had a bond with animals and caring for pets feels extremely natural for her. So obtaining her associates degree from an AVMA certified college was a dream. She loves becoming so close to the pets and families as they grow throughout the years. Lori is an avid music fan and has a passion for films. She also is the author of the photography book Silent Cities: The Cemeteries of Detroit. Lori has a beautiful daughter and a wonderful husband.

  • Joslyn Mazzetti
    LVT

    Joslyn took her LVT boards in the summer of 2012 to become a licensed technician although she has worked for Greenfield Animal Hospital since she was 16 years old! She has 3 crazy kitties, two dogs and a bird that she cares for. In her spare time, Joslyn enjoys horseback riding, swimming, and playing softball.

  • Tracy Lantto
    LVT

    Tracy is a licensed veterinary technician and has been with Greenfield Animal Hospital since 2012. Tracy received her degree in Veterinary Technology from Wayne State University in 2012. She loves being active and adores her 5 dogs and 5 cats!

  • Chelsea Hawley
    LVT

    Chelsea has been working with dogs and cats since she was 14 years old. She graduated in 2015 from Baker College. She has 3 pitbull mixes and 2 cats. During her spare time she loves to take her dogs to the dog park

  • Mary Isaac
    LVT

    Mary graduated from Michigan State University in 2013. She began her vet tech career in research, working for both MSU and WSU on new treatments for human and animal diseases. Mary also has emergency and critical care experience, though she prefers general practice as she is able to get to know her patients. Mary does not have spare time, but if she did, she would enjoy dance, sewing, and boxing. She has three cats, Willie, Gimli, and Walter, and fantasizes about one day owning a dog.

Contact Us Today

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Office Hours

Our Regular Schedule

Greenfield Animal Hospital

Monday:

8:00 am-8:00 pm

Tuesday:

8:00 am-5:00 pm

Wednesday:

8:00 am-5:00 pm

Thursday:

8:00 am-8:00 pm

Friday:

8:00 am-5:00 pm

Saturday:

8:00 am-4:00 pm

Sunday:

Closed

For after hours emergency care call

Oakland Veterinary Referral Services at (248) 334-6877