Marissa Ross is a wonderfully personable, intelligent, and assistive clinician. I'm very grateful to have access to her expertise and guidance.
A Thriveworks Client, verified client of Marissa
See what other clients sayAccepted insurance & self-pay
About Marissa
Marissa Ross is a board-certified Psychiatric Mental Health Nurse Practitioner (PMHNP-BC) who treats a variety of mental health concerns including mood disorders, depression, anxiety, sleep, insomnia, PTSD, substance abuse, and women's issues. Marissa is a compassionate provider with strong clinical skills and an emphasis on following evidence-based guidelines.
Marissa completed her PMHNP program at Rivier University-Nashua. Through her studies at Rivier, Marissa established strong clinical skills and rapport-building techniques in working with adult patients. Marissa provides culturally sensitive, emotionally-focused, and person-centered care through cognitive behavioral therapy (CBT), dialectical behavior therapy (DBT), and Motivational Interviewing (MI).
Marissa is confident in her ability to support adult patients seeking guidance in coping with a variety of mental health struggles. If you are ready to get started on your healing journey, schedule an appointment with her today.

"I understand the complex and dynamic needs associated with mental health challenges—and can help you fulfill those needs. "
What clients say
These testimonials are from real clients who completed a satisfaction survey after their sessions and agreed to share their feedback. Results may vary.
Marissa does great work, especially given that our appointments are just 30 minutes
A Thriveworks Client, verified client of Marissa
The honesty of my therapist and how I am always excepted with them.
A Thriveworks Client, verified client of Marissa
Marissa Ross is a wonderfully personable, intelligent, and assistive clinician. I'm very grateful to have access to her expertise and guidance.
A Thriveworks Client, verified client of Marissa
Dr. Ross has been nothing but helpful. She answers any and all questions with complete transparency and makes sure you understand everything.
A Thriveworks Client, verified client of Marissa
Get to know Marissa
Why did you decide to become a psychiatric provider?
I always knew I wanted to work in the healthcare field, I just wasn't sure in which capacity. After pursuing a nursing degree due to its wide range of specialties, I got my first job working on an inpatient psychiatric floor and never looked back. After working with many nurse practitioners over the years and seeing their job duties, compassion and knowledge, I realized that becoming a PMHNP was the path for me.
What inspires you?
I'm inspired by seeing patients thrive and achieve their optimal level of functioning when they receive high quality, compassionate psychiatric care.
What can clients expect in their first session with you?
Rapport building in the first session is key as is understanding and establishing goals for both patient and provider.
Other areas of focus
Education and training
- Years in practice
- 3 years
- Graduating institute
- Rivier University
- Graduating degree
- Master of Science in Nursing
