3215 Breton Rd. SE, Kentwood, MI 49512

Phone : (616) 241-6369

Fax : (616) 241-6042


About Us

At Kentwood Cat Clinic - serving Kentwood, Grand Rapids and West Michigan - your cat's health care is our top priority. We see patients by appointment. Please call us at (616) 241-6369 if you have any questions or to schedule an appointment.

We provide everything your cat needs to stay healthy or become as healthy as possible, from vaccines, spaying and neutering, to specialized care such as ultrasound and radioactive iodine treatment of hyperthyroid cats. We provide high-quality, full service veterinary medical technology, advanced surgical procedures and high-tech diagnostic equipment to all our patients. Our state of the art medical care is balanced with our commitment to customer service, compassion, and respect for our patients and clients.

We are proud that Kentwood Cat Clinic is certified as Cat Friendly practicing the Gold standard.

Our Team

Dr. Tammy P. Sadek

Dr. Tammy Sadek graduated first in her class at the University of Minnesota in 1984.  She founded the Kentwood Cat Clinic in 1987.   Dr. Sadek's interests include internal medicine, ultrasound, behavioral counseling, and geriatric medicine. Dr. Sadek is Board Certified in Feline Practice by the American Board of Veterinary Practitioners and was the consulting veterinarian for Hope College for several years. She has two children, three grandchildren, several cats, and a tolerant husband. Dr. Sadek loves to travel, and also is enjoying exploring the world of jewelry making and enameling.

Dr. Sadek is one of two veterinarians in the State of Michigan who is Board Certified in Feline Medicine. Dr Sadek has co-authored the 2014 House Soiling Guideline by the American Association of Feline Practitioners. Dr Sadek has given numerous lectures on Feline Medicine to other veterinarians as well as to cat owners. She sees many referral feline patients for consults on challenging feline medicine cases, house soiling cats, radioactive iodine treatment of hyperthyroid cats, ultrasound, as well as specialized surgeries such as subtotal colectomy for constipated cats or perineal urethrostomy for male cats with urinary issues.

Our Team

Dr. Alyson Coppens

Dr. Coppens got her introduction to feline medicine by working as an assistant for us while attending veterinary school. After graduating from Michigan State University’s College of Veterinary Medicine in 2004, she worked mainly as an emergency clinician. Now she is back to her first love: cats! Along with her husband and son, Dr. Coppens shares her home with three cats. In her spare time, Dr. Coppens enjoys crochet, reading, and movies.


Dr. Marisa Verwys

Hello my name is Dr. Verwys and I am very excited about joining the Kentwood Cat Clinic and moving back to Michigan to be closer to family and friends. I would like to take this opportunity to introduce myself; I am originally from Southern California where I grew up with many cats and a family dog.

I moved to Michigan after college to attend Michigan State University College of Veterinary Medicine. I enjoyed my four years in East Lansing and finally to get to see some real seasons that I was deprived of growing in up in Southern California. After graduation, I moved to Florida where I spent eight wonderful years at a small animal practice and started a family as well. As much as I enjoyed living in Florida, the pull of family and friends was stronger, and my husband and I moved back to Michigan in the spring of 2015.

We have a full household with two children, three dogs and two cats. We love to spend time outdoors being active and traveling as a family. My husband and I are looking forward to raising our children here in Grand Rapids, and I am planning on many wonderful years here at Kentwood Cat Clinic.


Dr. Miranda Boomstra

Dr. Miranda Boomstra grew up in West Michigan and attended veterinary school at Michigan State University. She started out working with both horses and companion animals, but is very excited to be working in feline medicine now. Veterinary medicine is a second career for her, as she has spent 14 years as a massage therapist and still owns a massage therapy business. Developing relationships with both human and furry clients and helping both to feel healthier is the best part of her jobs. She has 4 cat-kids: Corky, Kerry, Squeaker, and Toes.  Dr. Boomstra and her husband love to travel and renovate their home in their spare time.

Dr. Kirsten Begin

Dr. Kirsten Begin is a Michigan native who went to Michigan State University for both undergraduate studies as well as veterinary school. After graduation she spent a year at Mississippi State University completing a rotating internship then a year at the Animal Specialty and Emergency Center in Los Angeles, California completing a surgical internship. Upon returning to Michigan, Dr. Begin started practicing as a relief veterinarian where she gets to travel to a variety of different clinics and meet new people and their pets. Currently she splits her time between working at the cat clinics and traveling as a relief doctor. Dr. Begin shares her home with her cat, Linus.

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