Every new New York business filing, every dayNassau Behavioral Health
bradley greenstein, Registered Agent
Candidate W1 is a psychological practice offering therapy and counseling services in Lynbrook, NY. The site lists multiple phone numbers and an email, along with a physical address. The LLC's Syosset address may be a registered agent location, and the practice likely operates under a different legal name.
Filed July 30, 2025 · Syosset, NY · Nassau County
Find new mental health businesses in Syosset, then launch a cold email campaign built for you.
Every new New York filing, every day
See how it worksSource
New York Department of State, Division of Corporations · Entity 7673425 · Retrieved May 6, 2026
About Nassau Behavioral Health
NASSAU BEHAVIORAL HEALTH, LLC filed in New York on July 30, 2025, as a mental health practice specializing in psychology and therapy. Owner Bradley Greenstein filed personally as the registered agent, and the principal location is in Syosset. The company has a modern website built with Wix. We estimate revenue between $1 million and $10 million with 26 to 100 employees, and a hybrid footprint. No annual report or EIN on file yet.
- Owner Bradley Greenstein filed personally as registered agent.
- Principal city is Syosset, New York.
- Website built with Wix Website Builder.
- We estimate revenue of $1M-$10M and 26-100 employees.
- Hybrid footprint (brick-and-mortar and remote).
- No annual report or EIN on file yet.
Compiled from the state record, the company's public web presence, and our own research; revenue, employee, and footprint figures are estimates, not verified financials. Updated August 24, 2026.
One of 39 new businesses registered in Syosset in July 2025, and the only mental health business registered there that month.
Is this business yours?
It's getting views. Claim the page for free to control what your customers see.
Filing Details
Verified Business Profile
Contact Information
Verified Website Profile
We matched this business to its website and pulled the domain's registration (WHOIS) record. Domain age is one of the strongest signals that a filing is a truly new business and not a re-filing or paperwork change.
Frequently Asked Questions
When was Nassau Behavioral Health registered?
Nassau Behavioral Health was registered as LLC on July 30, 2025 in New York.
Where is Nassau Behavioral Health located?
Nassau Behavioral Health is based in Syosset, NY, 11791, in Nassau County.
What type of business is Nassau Behavioral Health?
Nassau Behavioral Health is classified as a mental health business (psychology and therapy).
Does Nassau Behavioral Health have an EIN on file?
No EIN was found on file for Nassau Behavioral Health at the time of registration.
Who Sells to This Business
Based on the business category, these service providers typically target this type of business.
Turn fresh mental health businesses into your next customers
We find newly registered businesses, verify their contact details, and build the campaign. You review everything before anything sends.
Build My Campaign Free ›