About
A local practice for you.
Northline is a local psychiatric practice in East Lyme, Connecticut. We’re building it the way we’d want to be cared for ourselves.
Why we started Northline
Most of what’s marketed as “online mental health” was built for scale, not for people. Quick text exchanges with whoever’s available. Five-minute med checks. Subscriptions you forget to cancel. Care that feels designed by a financial model rather than by people who’ve actually been a patient.
Northline is different on purpose. We’re an in-person practice in East Lyme, Connecticut. You’ll have a clinician who actually knows you. The visits are long enough to do meaningful work. We’re in-network with most insurance, so you don’t have to pay cash to get specialty care. And when life is busy, you can do your visit by secure video from home or work.
What we believe
- People deserve continuity. You should see the same clinician every visit.
- Care should fit your life. In-person when it matters, telehealth when it makes sense.
- Insurance should work. We do the prior-authorization paperwork. We give you a clear cost estimate up front.
- Honest conversations matter. Five-minute med checks aren’t enough. Our follow-ups make room for actual therapy when that’s helpful.
- Track what matters. We use the same brief check-ins research uses, so progress is visible.
Meet Our Leadership
Diane Guardiani, DNP, APRN, PMHNP-BC
Diane is Northline’s Clinical Director and leads all clinical care at the practice. She is a board-certified Psychiatric Mental Health Nurse Practitioner with more than 25 years of experience treating adolescents and adults across a wide range of conditions — depression, anxiety, ADHD, PTSD, bipolar spectrum, and adjustment-related concerns.
Diane earned her Doctor of Nursing Practice (DNP) from UMass Amherst and holds full practice authority in Connecticut. Prior to Northline, she practiced at Northeast Medical Group in New London and served as a clinical leader at Grove School.
Her approach is unhurried, evidence-based, and grounded in the belief that patients deserve a clinician who actually knows them — the same face, every visit, with time to talk.
Luke Albertson
Luke is the founder and CEO of Northline Psychiatry. He holds a master’s degree in management from Harvard University and serves on the faculty of the Harvard Division of Continuing Education’s Professional and Executive Development department.
Previously, Luke led and grew healthcare companies as CEO of Reflections Lifestyle Center and COO of Prime Psychiatry. At Northline, he leads strategy and operations — with a focus on translating advances in precision psychiatry into care models that actually work in community settings.
Luke lives in Niantic with his family. Read more →