Psychologist | Clinical Psychology

Dr. Tessa Nalven O'neil, PHD

205 Waterman St, Providence, Rhode Island, 02906-4313

About Dr. Tessa Nalven O'neil

Dr. Tessa Nalven O'neil is a psychologist based in Providence, Rhode Island who is specialized in Clinical Psychology. Active license number of Dr. Tessa Nalven O'neil is PS02413 for Clinical Psychology in Rhode Island. Her current practice location is 205 Waterman St, Providence. Patients can contact her at 401-379-2295. Dr. Tessa Nalven O'neil, PHD, specializes in Clinical Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1881552594.

Dr. Tessa Nalven O'neil is a mental health professional with highly specialized training in the diagnosis and psychological treatment of mental, behavioral and emotional illnesses, including obsessive-compulsive disorder (OCD). Her main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that she can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Practice Information

Dr. Tessa Nalven O'neil's specialty, credentials, practice address, contact phone number and fax are as below. Patients can call on the below given phone number for appointment.

Provider Name Dr. Tessa Nalven O'neil
Specialization Clinical Psychology
Credentials PHD
Gender Female
Practice Address: 205 Waterman St,
Providence, RI - 02906-4313

Professional Identification Codes

NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to healthcare providers in the United States by the Centers for Medicare and Medicaid Services (CMS). NPI details are as mentioned below.

NPI Number1881552594
NPI Enumeration Date: 12 Jan, 2026
NPI Last Update On: 12 Jan, 2026

Medical Licenses:

Healthcare professionals can hold one or more medical licenses for different specialties in the same state or different states. Related medical licenses for Dr. Tessa Nalven O'neil are as mentioned below.

License NumberSpecializationStateStatus
PS02413Clinical Psychology Rhode IslandPrimary

Mailing Address

Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned Practice address.

Dr. Tessa Nalven O'neil
205 Waterman St,
Providence, RI - 02906-4313
Phone: 401-379-2295

Book an Appointment with Dr. Tessa Nalven O'neil

To schedule an appointment, contact Dr. Tessa Nalven O'neil at 205 Waterman St, Providence, Rhode Island or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Tessa Nalven O'neil:

Dr. Tessa Nalven O'neil is a psychologist specializing in Clinical Psychology. She is a mental health professional with highly specialized training in the diagnosis and psychological treatment of mental, behavioral and emotional illnesses, including obsessive-compulsive disorder (OCD). Her main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that she can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Yes, Dr. Tessa Nalven O'neil is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.
*Availability may change. Please contact the office directly to ask about appointments.

Dr. Tessa Nalven O'neil practices at 205 Waterman St, Providence, Rhode Island, 02906-4313.

To schedule an appointment with Dr. Tessa Nalven O'neil, please contact the office at 401-379-2295.

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**Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 14 September, 2026.