Watch Mieshelle on The Today Show!

Mieshelle guest starred as the Cat Whisperer on Animal Planet's Must Love Cats!

Must Love Cats


A Vet Says, Every Wine In Its Own Time

Chardonnay is no longer urinating on our couch and bed. It has been 3 weeks and no accidents! Thanks you! I really think it was the (behavior advice removed). Our...

Best, Marci and Sigmund W., New York, NY 2005

Oh, Yeah: Did We Mention Weight Loss in Obese Cats?

Well, miraculously, Tennessee...

C. Payette Vancouver B.C 2008

Sometimes All It Takes is a Little [Behavior Advice Removed]!

Hayley is doing great, no more mishaps and she loves her (behavior advice removed)....

Thanks, Kathy

Phone or Skype Video Consultation Programs Scheduled Worldwide

Schedule with Harvard-trained, certified cat behaviorist and author, Mieshelle Nagelschneider.  With behavior plans based on your cat’s feline evolutionary biology, we go beyond the obvious facts and give intelligent solutions to solve “perplexing” behavior issuesRead over 165+ client testimonials since 1999.

Study Alert for September!  We are conducting a feline study for 2017.   Receive a $75.00 study discount through September 30th for all urination and defecation consult programs ($375.00 instead of $450.00).

    • $375.00:  One-hour consultation and 30 minute follow-up included with Mieshelle ($450.00 without $75.00 study discount this month):  Urination and defecation consults only.  If you have at least a two-cat household, you can take part in our social facilitation study consultation program and receive the $75.00 discount.  Included is a comprehensive behavior analysis and behavior plan during the one-hour consultation.  This plan includes a follow-up consultation 4 – 6 weeks after your initial consultation.


    • $450.00:  Two-hour consultation time with Mieshelle Nagelschneider.  A flexible plan to be used over the course of 8 weeks for analysis or further recommendations.  During the consultation process you will receive an in depth behavior analysis and an all-encompassing behavior plan with behavior strategies for your single cat or multi-cat household based on the most recent studies in cat behavior for urine spray-marking, more complex urination or defecation issues, all aggression issues, excessive vocalization, compulsive PICA, or overgrooming issues.  Mieshelle may divide your 2 hours into 4 consultations depending on the complexity of the issue.

    • Dietary analysis and recommendations for your cat with every consultation.


    • If you are not having a behavior issue, but would like to ask behavior related questions, you can schedule either the one or two-   hour consultation program and your answers will be given over the phone or in a following email by Mieshelle.


    Appointment times: Clinic operating hours are Sunday through Friday from 9:00 a.m. to 6:00 p.m. Pacific time/12:00 to 9:00 p.m. Eastern time. Book a Consultation Now or call the clinic at 503-267-8888.


    The value you receive goes well beyond the cat issue you have today. Because we truly educate our clients on how cats act and behave — and especially how their behavior is totally different from the dogs that most people unconsciously use as models — our clients are able to more knowledgeably raise and enjoy cats for as long as they have cats.  Mieshelle’s most recent study of animal behavior was at Harvard University

    It’s important to work with an experienced and certified cat behaviorist, but most importantly, one with formal study in animal behavior and a track record of proven results. The benefits of working with a cat behaviorist who really understands the latest in feline behavior can literally last you for years. (Like driving lessons, typing lessons, or a parenting class). A consultation with Mieshelle is nothing less than an investment towards a happier and problem-free cat — and toward your sanity. The advice, knowledge, and tools you’ll get during and after your consultation, as well as the traps (and products) to avoid, will repay you many times over.

    So do yourself and all your cats a favor (maybe your dogs and spouse too). Book a Consultation Now.

    Zoologist testimonial:  “The reason people are so mesmerized by house cats is because they are truly miniature versions of lions, tigers, and leopards. Mieshelle explains in an unprecedented and a most accessible way, the behavior of the house cat, with her unique insight into the often misunderstood companion animal that is as wild as we have become civilized.” Dr. Jordan Carlton Schaul, PhD — Contributing Editor, National Geographic Society and Curator, Orange County Zoo

    *Cancellation and refund policy: Refunds are not given for unused gift certificates, for missed appointments, unused leftover appointment time, or for appointments cancelled without 48 hour notice prior to your appointment time.  Your consult time must be used during your 4 or 8 week follow-up period.  The consult fee is for your initial consult with Mieshelle and the behavior plan she conveys to you over the phone.

    Read over 165 + client testimonials