Psychologist and Therapist in Exeter, New Hampshire Alfred-John Diamonti, Psychologist

License: PHD

Provider Gender: Male

Ages Served: 11-65+

Appointments: In-office only. Telehealth not available

Manages Medications: No, provides therapy only

Psychologist and Therapist in Exeter, New Hampshire Alfred-John Diamonti, PHD

Alfred-John Diamonti, PHD

Dr. AJ Diamonti began his career as a classroom teacher and school administrator, before returning to school himself to train as a psychologist. He received a Master of Arts degree in Mental Health Counseling and his doctoral degree in Counseling Psychology, both from Boston College, and completed his pre-doctoral internship in clinical psychology at Tewksbury Hospital in Massachusetts. His education and experience have included working with children, adolescents, and adults within public and private school systems, college counseling centers, and inpatient hospital settings.

Dr. Diamonti currently works with clients across the lifespan with a diverse range of clinical issues, including anxiety, depression, low self-esteem, gender identity/sexuality issues, trauma, anger, relationships, substance misuse, and other adjustment, behavioral or mood disorders. He takes an integrative, strengths-based approach, suited to the specific needs of each client by drawing on ACT, DBT, relational-cultural, psychodynamic, and trauma informed work.

Working as a teacher and as a psychologist has allowed AJ to collaborate with people as they learn new ways of managing the challenges of life and discover ways to develop better relationships with themselves and others. This has affirmed a belief in the strength, courage and resilience each individual possesses. He believes it is important to build a non-judgmental space with his clients that acknowledges that they are the experts on their own experience, where they can feel accepted for who they are even as they are working towards change, learning to better manage stress, improve relationships, and to replace what is not working in their lives with what might work better.


Insurances Accepted

  • Aetna
  • Behavioral Health Systems (BHS)
  • Carelon (Beacon)
  • Centivo
  • Community Health Options (CHO)
  • Elevance Health (Anthem BCBS)
  • Evernorth (Cigna)
  • Humana
  • MediNcrease Health Plans (MHP)
  • MultiPlan (PHCS)
  • Optum (UnitedHealthcare)
  • Partners Direct Health
  • Provider Network of America (PNOA)
  • Sana Benefits
  • Tricare East (Humana Military)
  • Tufts
  • US Family/Martin Point Health Plan


  • Acceptance and Commitment Therapy (ACT)
  • Cognitive Behavioral Therapy (CBT)
  • Dialectical Behavior Therapy (DBT)
  • Parenting Skills


  • Autism Spectrum Disorders
  • LGBTQ+
  • Men
  • Women


  • English



Please use our online form to schedule an appointment with Alfred-John Diamonti. You can also call 603-689-7890 to have someone assist you.

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