Third Wave Psychotherapy of New Mexico was co-founded by Drs. Liza Mermelstein and Rae Littlewood to meet the growing need for mental health services in New Mexico and to offer services that align with where the field is today and what research has shown to be effective. 

Our name reflects our commitment to “third wave” behavioral therapies—approaches that move beyond traditional cognitive and behavioral techniques to emphasize acceptance, values, and psychological flexibility.

At Third Wave, we’re dedicated to:

• Evidence-based care that combines scientific rigor with compassionate presence
• Inclusive, culturally responsive therapy that honors each person’s unique identity and background
• Ongoing growth and learning for both clients and clinicians
• Building community centered on authenticity and well-being

Our space is designed to be a sanctuary where you can slow down, reconnect with yourself, and develop the awareness and skills needed to live more fully. Whether you’re struggling with a specific mental health condition or navigating life’s inevitable challenges, we offer specialized expertise and genuine support.