2665 5 Mile Rd. NE Grand Rapids, MI 49525

Phone : (616) 364-1211

Fax : (616) 364-9571


About Us


At Cat Clinic North serving Kentwood, Grand Rapids, Rockford and West Michigan, your cat's health care is our top priority. We accept appointments and walk-in clients.

We provide high-quality, full service veterinary medical technology, advanced surgical procedures and high-tech diagnostic equipment to all our clients. Our state of the art medical care is balanced with our commitment to old-fashioned care, compassion, and respect for our patients and clients.

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

Our Team

Dr. Tammy P. Sadek

Dr. Tammy P. Sadek founded the Kentwood Cat Clinic in 1987. She graduated first in her class at the University of Minnesota in 1984. 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. She has two children, several cats, and a tolerant husband. Sadek loves to travel, and also is enjoying exploring the world of jewelry making and enameling.

Dr Sadek, who is board certified in Feline Medicine, is one of the authors of the House Soiling Guidelines released by the American Association of Feline Practitioners in 2014. Dr Sadek was Co-Chair of the task force that wrote the guidelines.

Dr Tammy Sadek is one of 2 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 to veterinarians on Feline Medicine as well as to cat owners. She sees many referral feline patients for consults on challenging feline medicine cases as well as for radioactive iodine treatment of hyperthyroid cats, ultrasound, surgeries such as subtotal colectomies for constipated cats, perineal urethrostomies for male cats with urinary issues, and house soiling cats.

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

drverwysHello 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 this spring.

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 12 years as a massage therapist and still co-owns a massage therapy office. 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.