The Cat Behavior Clinic of Seattle 

Harvard and Oxford-trained Cat Behaviorist and Veterinary Team

25 Years of Scientifically Observing and Analyzing Your Cat’s Gene-encoded Behavior From a Behavioral Cognitive, Ethological, and Feline Evolutionary Point of View

Seattle Cat Behaviorist Mieshelle Nagelschneider with Veterinarian
Founders of the “Cat Behaviorist” Specialty.  Experienced and Licensed Veterinarians and Certified Cat Behaviorist Team
  • Update: We are currently scheduling appointments through November 30th.  Urination or defecation clients receive the reduced consult fee by participating in our feline study through October 15th.  Scheduled cat owners can also participate in Mieshelle’s upcoming National Geographic/Disney cat behavior show production.
  • Become part of our 350 solved case study page

Certified Cat Behaviorist and Doctor Providing Excellent and Comprehensive Cat Behavior Care

Cat Behaviorist Mieshelle Nagelschneider The Cat Behavior Clinic
Photo: Actual Zoom Consultation in Beijing, China 2021. Mieshelle (shown on T.V. screen) is the only cat behaviorist in China and has helped over 30 million cat owners there who have watched her cat behavior television show, “My Cat From Hell”.

The clinic goes beyond the obvious facts about cat behavior and offers proven solutions to change your cat’s behavior long term.  View 350 solved case studies and testimonials and our outstanding clinic success rate. For over two decades, certified cat behaviorist and New York Times acclaimed international feline science author Mieshelle Nagelschneider and our veterinarian have helped thousands of cat owners in over 30 countries solve cat behavior issues from the simple to the most complex.  Mieshelle studied animal behavior at Oxford University, Harvard University, and The Royal School for Veterinary Studies – The University of Edinburgh.  You can read about her experience at Harvard University here that has enabled her to help cat owners think more scientifically about their cat’s behavior.  Help your cat with a simple behavior issue or one that has turned into something more complex.  Applying the sciences of wild felid genetics, animal psychology, feline learning and memory and biology is important to effectively correct a cat’s behavior long term.  

The Cat Behavior Clinic Cat in Clinic

Seattle Washington Cat Behaviorist Mieshelle Nagelschneider the Today Show

Seattle 2021 Testimonial From Dr. Midori Higashi: 

I consulted Mieshelle for my 4 month old kitten Bun Bun. When we got her, it was like she had never used a litter box. She was peeing/pooping on the carpet, on the bed, on the bathroom floor…I was having to do laundry every single day. I was at my wits end. I did extensive research to find a solution…cat forums, books, youtube videos, etc. I tried everything…different boxes, litter types, etc. She was traumatized every time I would attempt to even place her in the box. Within one week of consulting with Mieshelle, she had fixed our problems. Bun Bun hasn’t had a problem in over 6 weeks. She also helped us integrate a second kitty. Her tips/tricks helped the kitties love each other before they even met. I 100% recommend The Cat Behavior Clinic!  Dr. Midori Higashi – Seattle, Washington


The Cat Behavior Clinic orange cat photo

Helping Washington Cat Owners Think Scientifically About Their Cats’ Behavior Issues.  View 350 Testimonials and Solved Case Studies.

To change a cat’s behavior, it’s important to work with an experienced cat behaviorist, but most importantly, one with formal study in animal behavior that can apply the sciences of genetics, animal psychology, biology, and physiology to effectively correct a cat’s behavior.  An effective behavior plan to correct a cat’s behavior long term must be grounded in feline evolutionary biology and gene-encoded behavior.

The Cat Behavior Clinic

The Most Popular Pet is Also the Most Underserved

Even though cats are now the most popular companion animal, they are still incredibly underserved and especially where behavior help is concerned which puts the cat at a greater risk.  Mieshelle is the founder of the first cat-only behavior practice in the United States and one of three notable cat behaviorists in the United States, and is world-renowned for her global leadership in cat behavior education and crossing the conventional boundaries of the cat behaviorist specialty.  She is a long time cat expert and researcher for National Geographic cat documentaries and published works specifically on the 37 species of tigers and wildcats including domestic cats and an expert on wildcat hybrid behavior. You can view her work on: Howie Mandel’s Animals Doing Things for National Geographic, The Wild Side of Cats on Nat Geo Wild, The Today Show, Hallmark Channel, Animal Planet, the New York Times, MTV, NBC Dateline, New York Post (just to name a few).

Is Your Cat A Good Candidate for Behavior Help?

Probably, but if after reviewing your cat’s behavior history (the Feline Behavior History form you will be completing) it’s determined that a behavior consultation would not be helpful or appropriate, the clinic will conduct a consultation at no charge.

Seattle Cat Behaviorist Mieshelle
Zoom Feline Behavior Consultation Appointments

Mieshelle Nagelschneider and our doctor perform in-person, video, or phone consultations in the Seattle area or anywhere in the State of Washington.  All in-person consultations are scheduled in advance for the Seattle and surrounding area locations. Mieshelle and the veterinarians will travel to the cat’s location to assess the cat’s environment and observe the natural behavior exhibited in the home.  Many cat owners schedule video calls for urination defecation, aggression, and vocalization issues because this enables them to easily have follow-up calls at no charge after their initial behavior plan consultation.

A partial list of problematic cat behavior issues we routinely address
  • Cat urination or cat defecation behavior issues, no matter where it’s occurring. Participate in our feline behavior study and receive the study reduced consultation program fee through October 15th.
  • Spraying with urine is a destructive marking behaviors such as (urine) and middening (feces)
  • Aggressive cat behavior with the owner, other cats, or people within the household, including cat biting behavior
  • Clawing and other destructive behaviors — stop your cat from scratching the furniture
  • Yowling, excessive vocalization, and compulsive behaviors
  • Other so-called “bad cat behaviors”
We Serve Cat Owners in the Washington Cities of  Vancouver, Olympia, Seattle, Kirkland, Spokane, Tacoma, Everett, Renton, Mercer Island, Kent, Bellevue and their Surrounding Areas

Please feel free to call the clinic at 503-267-8888 to schedule or click “Book A Consultation” above to schedule online. We also recommend visiting our main Cat Behaviorist home page.

Think You’ve Tried Everything to Help Your Cat?
We’re Pretty Sure You Haven’t


World-renowned Oxford-trained Cat Behaviorist Mieshelle Nagelschneider, The Cat Whisperer™️

Schedule an Appointment