Big Brothers Big Sisters of Long Island

Provider details

NPI number

1851230353

Entity type

Organization

Primary specialty

Case Management AgencyAgencies

Organization subpart

No

Authorized official

Mark Cox, Chief Executive Officer(516) 842-7678

Specialties & taxonomies

• Case Management AgencyPrimary251B00000X

  Agencies

• Community/Behavioral Health Agency251S00000X

  Agencies

Additional practice locations (1)

• 145 Sycamore Ln

  Islandia, NY 11749-1509

  Phone: (631) 273-1469

  Fax: (631) 232-7955

Frequently asked questions

What is Big Brothers Big Sisters of Long Island's NPI number?

Big Brothers Big Sisters of Long Island's National Provider Identifier (NPI) is 1851230353, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What type of organization is Big Brothers Big Sisters of Long Island?

Big Brothers Big Sisters of Long Island is classified in the NPPES registry as Case Management Agency (Agencies).

Where is Big Brothers Big Sisters of Long Island located?

Big Brothers Big Sisters of Long Island's practice location on file with NPPES is 25 Carle Rd, Westbury, NY 11590-4147.

What is Big Brothers Big Sisters of Long Island's phone number?

The practice phone number listed in the NPPES registry for Big Brothers Big Sisters of Long Island is (516) 731-7880.

Who is the authorized official for Big Brothers Big Sisters of Long Island?

The authorized official listed on Big Brothers Big Sisters of Long Island's NPPES record is Mark Cox, Chief Executive Officer. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.

Is Big Brothers Big Sisters of Long Island's NPI active?

Yes — Big Brothers Big Sisters of Long Island's NPI (1851230353) is active in the NPPES registry as of the last update on 2026-03-27.