Unitas Healthcare Systems,
Psychiatric Nurse Practitioner, PMHNP, C-NP
Verified by Psychology Today Verified by Psychology Today
Let's Connect (617) 401-7441

Now Accepting New Patients — Don’t Wait to Get Help!
Weekend & Evening Appointments Available!
Experience the difference of private, personalized psychiatric care with Unitas Healthcare Systems. From children to older adults, our patients receive compassionate, discreet treatment — accessible anywhere in Massachusetts via secure telehealth.
Get the care you need quickly and on your terms.
Call today — appointments are filling fast!
We take a unique approach to mental health, utilizing both collaboration and shared decision-making. This means, in addition to including both the patient and family in decision-making, our providers will collaborate with the patient’s primary care provider and other providers to formulate the best and most individualized treatment plan.
•Anxiety Disorders •ADHD •Autism Spectrum Disorders •Bipolar Disorders •Child and Adolescent Disorders •Coaching •Depressive Disorders •Grief and loss •LGBTQ Mental Health •Mood Disorders •Personality Disorders •Posttraumatic Stress Disorder (PTSD) •Schizophrenia and other psychotic disorders •Substance Use Disorders (Medication-Assisted Treatment)
Take the first step to help. Call or Email Unitas Healthcare Systems, LLC now - (617) 401-7441
Let's Connect (617) 401-7441

Finances
Fees
- Initial Session Fee $74
- Standard Visit $74
- Sliding scale: apply if you may be eligible
Payment Methods
American Express, Cash, Discover, Health Savings Account, Mastercard, Paypal, Visa, Zelle
Unitas Healthcare Systems, LLC
Psychiatric Nurse Practitioner, PMHNP, C-NP
Check fees and, if listed, ask to verify your insurance coverage. Email or (617) 401-7441
Qualifications
- Verified by Psychology Today License: Massachusetts / RN2313246 Roosevelt Lewis
- In Practice for 8 years
Psychiatric Nurse Practitioner: Roosevelt Lewis
Education and Years In Practice
Unitas Healthcare Systems, LLC
Psychiatric Nurse Practitioner, PMHNP, C-NP
Feel free to ask about qualifications and training experience. Email or (617) 401-7441
Specialties and Expertise
Top Specialties
- Weight Loss
- ADHD
- Child
Expertise
- Addiction
- Alcohol Use
- Anxiety
- Autism
- Bipolar Disorder
- Drug Abuse
- Dual Diagnosis
- Education and Learning Disabilities
- Grief
- LGBTQ+
- Life Transitions
- Medication Management
- Men's Issues
- Neurodivergence
- Oppositional Defiance (ODD)
- Sleep or Insomnia
- Sports Performance
- Stress
- Substance Use
- Testing and Evaluation
- Trauma and PTSD
- Women's Issues
Unitas Healthcare Systems, LLC
Psychiatric Nurse Practitioner, PMHNP, C-NP
Do these issues align with your needs? Email or (617) 401-7441
Client Focus
Age
Toddler ,
Children (6 to 10) ,
Preteen ,
Teen ,
Adults ,
Elders (65+)
Participants
Individuals ,
Couples ,
Family
Communities
Bisexual Allied ,
Gay Allied ,
HIV / AIDS Allied ,
Intersex Allied ,
Lesbian Allied ,
Non-Binary Allied ,
Queer Allied ,
Racial Justice Allied ,
Transgender Allied
Ethnicity
Black and African American ,
Hispanic and Latino
I also speak
Portuguese
Age
Toddler ,
Children (6 to 10) ,
Preteen ,
Teen ,
Adults ,
Elders (65+)
Participants
Individuals ,
Couples ,
Family
Communities
Bisexual Allied ,
Gay Allied ,
HIV / AIDS Allied ,
Intersex Allied ,
Lesbian Allied ,
Non-Binary Allied ,
Queer Allied ,
Racial Justice Allied ,
Transgender Allied
Ethnicity
Black and African American ,
Hispanic and Latino
I also speak
Portuguese
Treatment Approach
Types of Therapy
- Integrative
- Ketamine-Assisted
- Solution Focused Brief (SFBT)
- Strength-Based
- Trauma Focused
Unitas Healthcare Systems, LLC
Psychiatric Nurse Practitioner, PMHNP, C-NP
Ask about what different forms of therapy will be like. Email or (617) 401-7441
Location
Additional Location
Portsmouth, NH 03801
(617) 401-7441Nearby Areas
Unitas Healthcare Systems, LLC
Psychiatric Nurse Practitioner, PMHNP, C-NP
Take the first step to help. Call now - (617) 401-7441