Psychologist | Clinical Psychology

Dr. Jason Johannesen, PHD

950 Campbell Ave, Psychology Service, 116b, West Haven, Connecticut, 06516-2770

About Dr. Jason Johannesen

Dr. Jason Johannesen is a psychologist based in West Haven, Connecticut who is specialized in Clinical Psychology. Active license number of Dr. Jason Johannesen is 003277 for Clinical Psychology in Connecticut. His current practice location is 950 Campbell Ave, Psychology Service, 116b, West Haven. Patients can contact him at 203-932-5711. Dr. Jason Johannesen, PHD, specializes in Clinical Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1215352836.

Dr. Jason Johannesen 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). His main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that he can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Practice Information

Dr. Jason Johannesen'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. Jason Johannesen
Specialization Clinical Psychology
Credentials PHD
Gender Male
Practice Address: 950 Campbell Ave, Psychology Service, 116b
West Haven, CT - 06516-2770

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 Number1215352836
NPI Enumeration Date: 19 Feb, 2014
NPI Last Update On: 19 Feb, 2014

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. Jason Johannesen are as mentioned below.

License NumberSpecializationStateStatus
003277Clinical Psychology ConnecticutPrimary

Mailing Address

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

Dr. Jason Johannesen
950 Campbell Ave, Psychology Service, 116b
West Haven, CT - 06516-2770
Phone: 203-932-5711

Book an Appointment with Dr. Jason Johannesen

To schedule an appointment, contact Dr. Jason Johannesen at 950 Campbell Ave, Psychology Service, 116b, West Haven, Connecticut or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Jason Johannesen:

Dr. Jason Johannesen is a psychologist specializing in Clinical Psychology. He 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). His main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that he can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Yes, Dr. Jason Johannesen 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. Jason Johannesen practices at 950 Campbell Ave, Psychology Service, 116b, West Haven, Connecticut, 06516-2770.

To schedule an appointment with Dr. Jason Johannesen, please contact the office at 203-932-5711.

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