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Northline Psychiatry
5.00
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
5.00
Wait time
4.89
Bedside manner
5.00
Insurances accepted
Anthem Blue Cross Blue Shield
Blue Cross Blue Shield
Cigna
Aetna
Carelon Behavioral Health (fka Beacon Health)
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Northline Psychiatry
170 Flanders Rd, Unit B1, Niantic, CT 06357
Today, Aug 20 – Wed, Sep 2
Insurances acceptedAnthem Blue Cross Blue ShieldBlue Cross Blue ShieldCignaAetnaCarelon Behavioral Health (fka Beacon Health)
1 office location
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Northline Psychiatry
Northline Psychiatry provides comprehensive mental health care for adolescents, adults, and older adults on the Connecticut shoreline. Our team of board-certified psychiatric nurse practitioners and licensed clinical therapists offers evidence-based medication management, individual therapy, and integrated care for depression, anxiety, ADHD, PTSD, bipolar disorder, trauma, addiction, grief, and life transitions.
What sets us apart: your prescriber and therapist actually communicate with each other. Care at Northline is coordinated, unhurried, and built around your goals.
We're in-network with most major Connecticut insurance plans, including BlueCross BlueShield, Aetna, Cigna, UnitedHealthcare, and ConnectiCare. Our Niantic office serves East Lyme, Old Lyme, Waterford, New London, Groton, Mystic, and surrounding shoreline communities. Telehealth is available throughout Connecticut.
Same-week appointments are available. Book online in minutes.
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
5.00
Wait time
4.89
Bedside manner
5.00
Your trust is our top concern, so providers can't pay to alter or remove reviews. We also don't publish reviews that contain any private patient health information. Learn more here
9 reviews
Most relevant
Amazing vist , she was so pleasant to speak with and took everything I said into consideration
August 13, 2026Jasmine B.Verified patient
Thorough, direct, genuinely kind. I highly recommend!
MTVerified patient
Great first impressions.
August 20, 2026Richard S.Verified patient
Diane showed up for me at a moment when I badly needed someone to. She's helping me find my way back. I can't recommend her more highly!
EAVerified patient
Diane gave me clear answers and a plan. She was thorough, and she never made me feel like a difficult case. I trust her completely and recommend her without hesitation.
BTVerified patient
Diane is the best provider I've worked with. She doesn't rush. She doesn't overprescribe. She tells you the truth. I came to her at a low point and she helped me get steady again. If you're looking for someone who will actually listen, it's her. 10/10, 5/5, 1 of 1.
RSVerified patient
I saw Diane during a hard period and she was exactly what I needed. Exlpained explained every decision. She adjusted carefully rather than stacking medications. I trust her judgment completely and recommend her to anyone looking to figure out their medication management.
JOVerified patient
Dr. Guardiani was warm, thoughtful, and incredibly easy to talk to. I never felt rushed or reduced to a checklist. She took the time to understand what I had been experiencing, explained the medication-management process in a clear and reassuring way, and made the entire visit feel collaborative.
I left feeling heard, respected, and genuinely hopeful about the next steps <3
ERVerified patient
August 19, 2026Susan S.Verified patient