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  • Welcome to ISTI
  • Calendar
  • The People
    • Faculty
    • CSCT Professionals
    • Testimonials
  • eLearn
  • PESI Course Offerings
  • Contact Us
We're having a FREE open house
Curious about the process toward a Certified Sex Therapist or Counselor?
Are you considering the new Certified Sex and Couples Therapist designation?

Click here to register
Discover the next steps for your career with the Integrative Sex Therapy Institute (ISTI). Join our Open House - at 7:00 PM (EST) on January 14, 2021 - and meet our staff and have all of your certification questions answered.

ISTI offers all courses* necessary for certification as a:
  • Certified Sex and Couples Therapist
  • AASECT Certified Sex Therapist, Counselor or Educator
  • Transfer student to Ph.D. Counseling/Sex Therapy through the fully accredited Daybreak University online program - all courses apply

Dr. Tammy Nelson is the founder and Executive Director of the Integrative Sex Therapy Institute (ISTI). For over 30 years she has been teaching and leading the field in the highest standards of excellence, and introducing ISTI students to expert instructors, top-notch authors and speakers, researchers, and academics in the field of sexuality and psychotherapy. Instructors include Gail Guttman, Hani Miletski, Barry McCarthy, Nan Wise, Dan Rosen, Pebble Kranz, Wendy Miller, Andrew Tatarsky, Michael Giordano, Shadeen Francis, Lee Phillips, Natashia Fuksman, and many more. 

We know that your world is changing. We offer payment plans, financial assistance, discounts, and scholarships. Sign up for one course or apply for the whole program to receive the support you need. Graduates assist faculty, instruct, teach, and publish with our help.
Your program starts here and now.
Click here to register
Email for more information:  tammynelsonasst@gmail.com

We can't wait to see you!

Now available on Amazon - Integrative Sex & Couples Therapy: A Therapist's Guide to New and Innovative Approaches Book 

* All courses are AASECT approved
©2022 Integrative Sex Therapy Institute
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  • Welcome to ISTI
  • Calendar
  • The People
    • Faculty
    • CSCT Professionals
    • Testimonials
  • eLearn
  • PESI Course Offerings
  • Contact Us