Lake Success

Schedule your child’s first appointment today at our pediatric mental health clinic in Lake Success on Long Island.

Brightline Long Island (Lake Success) Clinic- Interior

How to find us

Lake Success address and hours

3000 Marcus Ave, Ste 3E01, New Hyde Park, NY 11042

Take the elevator to the 3rd Floor and you will see Suite 3E01


* Mon–Fri: 8am to 7pm

Public Transportation

* New Hyde Park on the LIRR (Long Island Rail Road)

* Ubers and Lyfts can drop off at building 3000 in the Lake Success Quadrangle parking lot

Parking and arrival infomation

Parking: The entrance gates are open Monday through Friday at 7:00am and close at 9:00pm. Enter through the road gates on Marcus Avenue and New Hyde Park Road and park front end forward. Parking regulations will be enforced by Countrywide Towing Enforcement, 534 Main Street, Westbury, New York, 11580. (516) 997-2842.


Arriving: Please check in and be ready to show your photo ID at the desk in the lobby. Prep for your visit.

What Brightline offers through our in-person and online appointments

Care for every child starts with a diagnostic evaluation. It includes structured, in-depth conversations with both parent and child, and a follow-up session where we'll share evaluation results and a recommendation for next steps.

The goal? That you come away holding a care plan you helped create, knowing we truly understand what your child needs. From there, Brightline will recommend one of these paths:

Request an appointment

Please complete the form below to request an appointment at Brightline.

Our Engagement Specialist team will contact you to discuss your situation, explain the process, and schedule your appointment.

Brightline currently provides services in NY, NJ, CT, MA, and WA.

Brightline is committed to protecting and respecting your privacy. Email and SMS are not always secure and Brightline cannot guarantee their security or confidentiality. Even if you do not agree to receive emails or SMS, Brightline may send you transactional messages necessary to provide its service. Message frequency varies depending on your use of services. Standard carrier message and data rates apply. Reply to an SMS text with “STOP” to opt-out of messages or click “unsubscribe” in emails to unsubscribe from emails. Checking a box on this page qualifies as a legal signature. Fields marked with a '*' are required.

Join our clinical team