Psychiatrist

Dr. Nathan Rhys Gwilliam, MD

389 Whitney Ave, Whitney Office Suites #2, New Haven, Connecticut, 06511

About Dr. Nathan Rhys Gwilliam

Dr. Nathan Rhys Gwilliam is a psychiatrist based in New Haven, Connecticut who is specialized in Psychiatry. Active license number of Dr. Nathan Rhys Gwilliam is 71782 for Psychiatry in Connecticut. His current practice location is 389 Whitney Ave, Whitney Office Suites #2, New Haven. Patients can contact him at 203-293-6258. Dr. Nathan Rhys Gwilliam, MD, specializes in Psychiatry and his NPI number (Unique professional ID assigned by NPPES) is 1366882409.

Dr. Nathan Rhys Gwilliam 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. Nathan Rhys Gwilliam'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. Nathan Rhys Gwilliam
Specialization Psychiatry
Credentials MD
Gender Male
Practice Address: 389 Whitney Ave, Whitney Office Suites #2
New Haven, CT - 06511

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 Number1366882409
NPI Enumeration Date: 03 Jul, 2013
NPI Last Update On: 06 Apr, 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. Nathan Rhys Gwilliam are as mentioned below.

License NumberSpecializationStateStatus
71782Psychiatry 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. Nathan Rhys Gwilliam
389 Whitney Ave, Whitney Office Suites #2
New Haven, CT - 06511
Phone: 203-293-6258

Book an Appointment with Dr. Nathan Rhys Gwilliam

To schedule an appointment, contact Dr. Nathan Rhys Gwilliam at 389 Whitney Ave, Whitney Office Suites #2, New Haven, Connecticut or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Nathan Rhys Gwilliam:

Dr. Nathan Rhys Gwilliam 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. Nathan Rhys Gwilliam 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. Nathan Rhys Gwilliam practices at 389 Whitney Ave, Whitney Office Suites #2, New Haven, Connecticut, 06511.

To schedule an appointment with Dr. Nathan Rhys Gwilliam, please contact the office at 203-293-6258.

Reviews & Feedback

Have you visited Dr. Nathan Rhys Gwilliam? Share your experience to help others looking for a psychiatrist in New Haven, CT.

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