CAT BEHAVIORIST at The Cat Behavior Clinic

Expert Cat Behavior Care

Schedule a Zoom Appointment with Our Veterinarian and Oxford-trained Certified Cat Behaviorist and Cat Science Author on National Geographic and Discovery Channel

25 Years in Practice Providing Comprehensive Behavior Care Based on Your Cat's Feline Evolutionary Biology

Specializing in Cat Aggression, Urination, Defecation, Spraying, and Vocalization. Over 350 Testimonials and Solved Case Studies.

Schedule a Zoom or Phone Appointment

Gene-encoded Cat Behavior: The Clinic Has Solved Thousands of Cat Behavior Issues in Over 30 Countries by Scientifically Observing and Analyzing Cat Behavior From a Behavioral Cognitive, Ethological, and Feline Evolutionary Point of View.

OXFORD University, Harvard University, and The Royal School of Veterinary Studies at The University of Edinburgh was Certified Cat Behaviorist and cat science author Mieshelle Nagelschneider's formal study of animal behavior. You can learn more about her additional animal behavior studies including Harvard University on our Animal Behavior Study Page. Founder of the "cat behaviorist" profession for over two decades, she is world-renowned for her global leadership in cat behavior education and crossing the conventional boundaries of the cat behavior specialty.

Analyzing cat behavior and solving their issues in over 30 countries, Mieshelle is the founder of the first cat-only behavior clinic practice in the United States. Her applied scientific analysis of the behavior and evolutionary biology of the cat has enabled her to help thousands of cat owners over two decades, solve their cat's behavior issues. Our veterinary team is also an integral part of helping cat owners and offer vet-to-vet consulting. Dr. Jim Shultz performs local in-home consults.

Mieshelle has been the cat behaviorist and long time research expert for National Geographic and NatGEO Wild television shows, published works and documentaries on cat behavior and the 37 species of wildcats including the domestic cat and wildcat hybrids. You can also watch her on the Today Show, Hallmark Channel, NBC Dateline, and MTV. She is an award-winning international author of New York Times acclaimed feline behavior science book published in 4 languages by Random House Publishing.

Mieshelle coined the term and was the first "Cat Behaviorist" and "Feline Behavioral Scientist" in the United States and is the recipient of the Golden Purr Award for her contribution to cat behavior.

To achieve behavior results that are lasting, it’s necessary to work with an experienced cat behaviorist, but most importantly, one with formal university study in animal behavior that can apply the sciences of gene-encoded behavior, animal psychology, feline evolutionary biology and physiology, to effectively correct a cat’s behavior.

Mieshelle travels the globe from Australia to the Philippines lecturing to veterinarians and shelter workers to help them better help cat owners for over two decades solving “unfixable” behavior issues. She goes beyond the obvious facts about cat behavior and offers intelligent and proven solutions. Cat owners receive systematic behavior plans and guidance based on feline evolutionary biology.

Cats are still the most misunderstood companion animal that are at the greatest risk. The hundreds of vets the clinic works with each year and who refer cats to us often say, as will vet behaviorists, "we still don't know what to do with cats". Dr. Jordan Carlton Schaul, Ph.D., contributing editor, National Geographic, and past curator, Orange County Zoo, “The reason people are so mesmerized by house cats is because they are truly miniature versions of lions, tigers, and leopards. In her book, Mieshelle Nagelschneider explains the behavior of the house cat in an unprecedented and most accessible way, offering unique insight into the often misunderstood companion animal that is as wild as we have become civilized.”
READ ABOUT: Dr. Shultz and Mieshelle's Education, Acclaimed Feline Behaviorial Science Books, Lectures, Media, Spokesperson, and Welfarist International Work.

The Clinic Has Corrected Thousands of Urination, Aggression, Defecation, and Vocalization Cat Behavior Issues Around the World

Over 350 Cat Behavior Testimonials for Oxford-trained Certified Cat Behaviorist

  • Lexi has gone poop in the litter box 4 times in a row! This is the first poop that wasn’t covered in litter so I took a pic of it. She’s been doing very well this week!

    Cat Behavior Testimonial Mieshelle Kate M. Melbourne, Florida
  • I had a great experience working with Mieshelle solving our cat's urinating issues. She was clear and concise and most importantly solved an ongoing urination issue of several years within the first two weeks. I'm so glad that I worked with her and would definitely recommend her to anyone!

    Susan B. NYC
  • 2019 Urine Case Study Success Update: “Hello Mieshelle, Just wanted to follow up that Doolittle is now pee free for more than a month. He (behavior advice removed). The other cats (behavior advice removed) as you said no one was (behavior advice removed). From day one they stopped (behavior advice removed)”.

    Cat Behavior Testimonial Mieshelle Angela D. Bradenton, Florida

Cat Behaviorist Team for Over 30 Countries

For Over Two Decades our Cat Behaviorist and Veterinarians at The Cat Behavior Clinic Have Helped Cat Owners Nationwide and in Over 30 Countries Around the World. We Have More Cat Owners Purring Than Anyone From New York to Australia.

Founder of the “Cat Behaviorist” specialty, Mieshelle is a noted international cat behavior science author published in 4 languages for Random House Publishing. Her award-winning scholarly-cited cat behavior book is based on cat and animal behavior scientific research and is the first of its kind for cat owners. She is also a long time cat behavior expert, editor, and developer for National Geographic books and television documentaries on the 37 species of wild cats (including the domestic house cat). You can also see her as the cat behaviorist expert for Nat Geo WILD’S Animals Doing Things with Howie Mandel

Cat Behaviorist Mieshelle Nagelschneider Cat Behavior Books

Cat Behaviorist Organizations and Affiliations

Award-winning cat behaviorist and cat science author (Random House and National Geographic), Mieshelle was one of the first certified cat behaviorists in the United States and has been a past or long time member of cat behavior organizations like The Animal Behavior Society, Cat Behavior Counselors (Certified), The International Association of Animal Behavior Counselors (past Associate Certified Cat Behavior Counselor Cat Division) among others.  There are still only a handful of cat behaviorists as compared to dogs trainers and veterinary behaviorists. Cats are still very underserved in the behavior category when it comes to cat care.  With over 40,000 hours of conducting feline consultations and the first cat-only behaviorist practice in the United States, Mieshelle is considered the pioneer of the cat behavior specialty and one of only three notable cat behaviorists (Wikipedia) in the United States.  

Mieshelle Nagelschneider Cat Behavior Expert for LIFE Magazine on the History of Cats and Their Gene-encoded Behavior

Mieshelle Nagelschneider for Life Magazine Interview

Mieshelle as The Cat Whisperer for National Geographic and Discovery Channel China

Watch Mieshelle on National Geographic’s Animals Doing Things with Howie Mandel as their cat expert and other cat behaviorist documentaries by Nat Geo Wild.  As a cat behavior science author she is also the cat expert for several of National Geographic published works on the 37 species of wildcats, tigers, and every breed of the domestic house cat including wildcat hybrids.  She is currently filming her new cat behavior show in Beijing China, My Cat From Hell, for Discovery Channel.

She is known for her global leadership in cat behavior education. Her passion and curiosity about cats along with her formal study in animal behavior, continues to put her on the forefront of cat behavior knowledge crossing the conventional boundaries of the cat behaviorist specialty. She is also known as the original and only, Cat Whisperer™.

Five-star Yelp Review Cat Behaviorist Mieshelle Nagelschneider      Darrel P.  United States

Mieshelle Nagelschneider on The Today Show

Watch The Cat Whisperer™ on the Today Show
Award-winning Author and Cat Whisperer™ Mieshelle Nagelschneider – Pioneer of The Cat Behaviorist Specialty Since 1999.

Cat Behavior Expert Mieshelle Nagelschneider on Hallmark ChannelHallmark Channel Home & Family Show 2017 Mieshelle (center) Talking Cat Behavior Issues with Host and Susan Lucci as the International Cat Behaviorist for Arm & Hammer Cat Litter

Read more about Mieshelle’s past formal education in animal behavior through Oxford University, The University of Edinburgh – The Royal School of Veterinary Studies, and her study and experience at Harvard University on our about page. We also have a licensed veterinarian, Dr. Jim Shultz,  that we refer for specific local cases only or vet-to-vet remotely.

Veterinarian for The Cat Behavior Clinic holding a cat
Dr. Jim Shultz with a furry patient.

Without a behavior plan that’s carefully created drawing from current research on cat behavior to appropriately address all the critical components and factors of a presenting behavior, is like trying to conduct a symphony without sight or sound. Behavior plans that completely eliminate a cat behavior issue are not one-size-fits-all. 

After your consultation should any changes or additions need applied to your cat’s behavior plan, we are here for additional correspondence. Cats are not all the same and can respond differently to various techniques and a behavior plan should respond and reflect your cat’s uniqueness.

For Over Two Decades the Clinic Has Provided Trusted and Proven Behavior Solutions and is the Author and Cat Expert of Several Cat Behavior Books

The Cat Whisperer Book Random House Publishing

“The reason people are so mesmerized by house cats is because they are truly miniature versions of lions, tigers, and leopards. In her book The Cat Whisperer, Mieshelle Nagelschneider explains the behavior of the house cat in an unprecedented and most accessible way, offering unique insight into the often misunderstood companion animal that is as wild as we have become civilized.”—Jordan Carlton Schaul, Ph.D., contributing editor, National Geographic, and curator, Orange County Zoo

With the help of veterinarian Dr. Gary Weitzman and cat behaviorist Mieshelle Nagelschneider, kids will also learn how to choose the right cat for them, how to take care of their new feline friend, and how to understand its behavior.  

Cat Tales Cat Book National Geographic
Other National Geographic Works with Cat Behaviorist Mieshelle Nagelschneider.

Proven Cat Behavior Solutions

All cat behavior solutions must take into consideration feline instincts and their evolutionary biology.  The clinic has exclusive rights to Mieshelle Nagelschneider’s proprietary Cat Whisperer™ consulting, easy-to-implement C.A.T. Plan™ positive behavior modification, the most effective, comprehensive, and up-to-date system for curing any cat behavior problem.

Because every cat and environment is different, the plan allows for customized behavior techniques and environmental changes when needed – because cat behavior is not one-size-fits all. Mieshelle has spent 20 years developing a method so effective that when clients follow it, their success rate is well over 90% (even higher for the most common issues).

Her science-based cat behavior book, The Cat Whisperer, has been featured in the New York Times and a best-seller on Amazon and published in 4 languages (Random House Publishing with co-writer Cameron Powell). 

For cat behaviorists seeking certification, her book is required curriculum by a number of cat behaviorist certifying organizations. 

Recipient of the Golden Purr Award for her contribution to cat behavior knowledge

Mieshelle The Cat Whisperer™ is the spokesperson and cat behavior panel expert for Comfort Zone and Arm & Hammer Cat Litter and in the past for Whiska’s International Media Tour Australia. Her cat behavior expertise is seen in the New York Times, The Today Show, NBC Dateline, MTV, Animal Planet, National Geographic, The Hallmark Channel, Modern Cat Magazine, Parade, Reader’s Digest, Cat Fancy Magazine, The New York Post, The Boston Globe, USA Today, This Wild Life, The Divine Cat, Real Simple Magazine,, Petside, Freekibblekat, The Toronto Star, Canada Globe and Mail, Animal Rescue Site, The Daily Cat, Feline Wellness Magazine, Advisory Council, This Wild Life, The Cat Channel, Pets Magazine, The Circle, New Republic, The Sunrise Show,, Herald Sun, Toronto Star, and countless others. See our Media Room below for the latest.

What Our Colleagues Say About Cat Behaviorist Mieshelle Nagelschneider

Love is born of mystery, and our cats are mysterious and loved in equal measure. But sometimes the greatest blessing of all is a bit of light thrown into a dark place. Mieshelle Nagelschneider holds that light. Allow her to share it with you.”– Gwen Cooper Author, Homer’s Odyssey: A Fearless Feline Tale, of Life With a Blind Wonder Cat (Random House), New York, NY

Veterinarian: “Over the course of many years, Mieshelle has developed and refined her unique ability to think like a cat. On numerous occasions I have witnessed the life-changing benefits Mieshelle’s techniques can bring to cats and their sometimes very frustrated owners.” – Veterinarian, Dr. James R. Shultz DVM, Portland, Oregon

Cat Behavior Veterinarian Referral from Dr. Lisa Berger DVM: “Despite all the disruptions, there have been no incidents of urination on the bed or the couch, and neither have been covered by plastic all week!” – Juanita H. Portland, Oregon

You have the African wildcat, your domestic cat’s ancestor, to thank for many of your cat’s “unwanted” cat behaviors. Learn more about this during your consultation to better understand and help your cat and solve its behavior issues.  We often misunderstand cat behaviors.  Once cat owners understand their cat instincts and biology, they can better understand why the behavior strategies work so well and can better apply them.

Does a Cat Therapist Need to Come to My Home?

Feline behavior therapy is very different from canine behavior therapy and the approach to changing a cat’s behavior is even more different. Cats do not display obedience problems like dogs. The help you need is not focused on physical or verbal behavior modification strategies, like dog training with a dog trainer present. All cat behaviorists conduct consultations by phone or video Skype. Our behavior plans are specific to cats and still allow for the natural feline instincts, but when and where you want them displayed. We will cover the behavior plan during the phone or video consultation and offer follow-up over the course of several weeks for all of our consultations programs.

Call The Clinic Today at 503-267-8888