Psychiatrist

Dr. Jonas O'gara Hannestad, MD PHD

950 Campbell Ave, West Haven, Connecticut, 06516-2770

About Dr. Jonas O'gara Hannestad

Dr. Jonas O'gara Hannestad is a psychiatrist based in West Haven, Connecticut who is specialized in Psychiatry. Active license number of Dr. Jonas O'gara Hannestad is 043427 for Psychiatry in Connecticut. His current practice location is 950 Campbell Ave, West Haven. Patients can contact him at 203-932-5711. Dr. Jonas O'gara Hannestad, MD PHD, specializes in Psychiatry and his NPI number (Unique professional ID assigned by NPPES) is 1447305974.

Dr. Jonas O'gara Hannestad specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

Practice Information

Dr. Jonas O'gara Hannestad'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. Jonas O'gara Hannestad
Specialization Psychiatry
Credentials MD PHD
Gender Male
Practice Address: 950 Campbell Ave,
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 Number1447305974
NPI Enumeration Date: 24 Jan, 2007
NPI Last Update On: 08 Jul, 2007

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. Jonas O'gara Hannestad are as mentioned below.

License NumberSpecializationStateStatus
043427Psychiatry 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. Jonas O'gara Hannestad
227 Church St, Apt 3f
New Haven, CT - 06510-1817
Phone: 203-974-7536
Fax: 203-974-7662

Book an Appointment with Dr. Jonas O'gara Hannestad

To schedule an appointment, contact Dr. Jonas O'gara Hannestad at 950 Campbell Ave, West Haven, Connecticut or call the phone number listed below.

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Frequently Asked Questions

Below are some commonly asked questions about Dr. Jonas O'gara Hannestad:

Dr. Jonas O'gara Hannestad is a psychiatrist specializing in Psychiatry. He specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

Yes, Dr. Jonas O'gara Hannestad 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. Jonas O'gara Hannestad practices at 950 Campbell Ave, West Haven, Connecticut, 06516-2770.

To schedule an appointment with Dr. Jonas O'gara Hannestad, 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.