Find the help you need

Treating adults and adolescents with anxiety, depression, ADHD, and substance use issues
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Offers Telehealth
Appointments
Accepts
Online Payments
Accepting New
Clients

About

How can I help you?

With over 35 years of experience in healthcare—including service in the U.S. Army and clinical roles at Boston Children’s Hospital—I specialize in supporting individuals navigating mental health and substance use challenges. I'm a Certified Family Nurse Practitioner and an Addictions Registered Nurse – Advanced Practice, with a degree from the Massachusetts College of Pharmacy and Health Sciences. My care philosophy is holistic and evidence-based. I work with each individual to integrate key lifestyle factors—like nutrition, physical activity, sleep, and work-life balance—alongside medication management when appropriate. I also draw from a range of therapeutic approaches, including Dialectical Behavior Therapy (DBT) techniques, the 12-Step model, motivational interviewing, and mindfulness practices. Above all, I’m committed to helping you build a healthier, more connected life—one grounded in resilience, self-awareness, and meaningful change.
John Fantegrossi
FNP-C, CARN AP

Services

Helping people by treating the whole person

  • Anxiety
  • Depression
  • ADD/ADHD
  • Substance Use
  • Addiction
  • Parent Coaching

Approaches

  • Psychiatric Medication Management
  • Substance Use Treatment Medication Management
  • Motivational Interviewing
  • Meditation
  • Mindfulness-Based Stress Reduction (MBSR)
  • 12 Step Based Treatment
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