SOUTH OAKS HOSPITAL
NPI 1821394016
Psychiatric Hospital in Amityville, NY
About South Oaks Hospital NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SOUTH OAKS HOSPITAL (NPI 1821394016) is a healthcare organization registered as a psychiatric hospital in Amityville, New York and active in the NPI registry since February 2011. The organization lists Michele Cusak, Cfo, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
South Oaks Hospital is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by December 31, 2026
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
123Medicare enrollment records show 123 clinicians reassign Medicare billing to South Oaks Hospital, which bills Medicare for the services they deliver. Of these, 22 practice at this address and 41 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 4
Nearest to this location (20)
See all 123Amityville, NY 11701
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is The Long Island Home's NPI number?
The NPI number for The Long Island Home is 1821394016. It was assigned to this organization in the NPPES registry on February 4, 2011. The provider is doing business as South Oaks Hospital.
Where is The Long Island Home located?
The Long Island Home is located at 400 Sunrise Hwy, Amityville, NY 11701. The listed phone number is (631) 264-4000.
What is The Long Island Home's specialty?
The primary specialty registered for this NPI is Psychiatric Hospital with taxonomy code 283Q00000X.
Is The Long Island Home enrolled in Medicare?
Yes. The Long Island Home is registered in the Medicare PECOS enrollment system.
When is The Long Island Home's Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (New York, Hospital Department(S)) is due for revalidation by December 31, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through The Long Island Home?
According to the CMS Revalidation Reassignment List (October 2026 release), 123 clinicians in 4 Medicare specialties reassign their Medicare billing to The Long Island Home. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Psychiatry (77), Nurse Practitioner (42) and Internal Medicine (3). Of these, 22 practice at this address and 41 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does The Long Island Home accept?
Health plans from Oscar Health list The Long Island Home as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for The Long Island Home was last updated on July 26, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# South Oaks Hospital · NPI 1821394016
Psychiatric Hospital organization in Amityville, New York. Organization record, active in the CMS NPPES registry since February 4, 2011.
## Identity
- **NPI:** 1821394016 (Entity type: Organization)
- **Enumerated:** February 4, 2011
- **Primary specialty:** Psychiatric Hospital · taxonomy 283Q00000X
- **Legal business name:** The Long Island Home
- **Organization subpart:** Yes (part of The Long Island Home)
- **Authorized official:** Michele Cusak, CFO
## Practice location
- **Address:** 400 SUNRISE HWY, Amityville, NY 11701-2508
- **Phone:** (631) 264-4000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** December 31, 2026 (Non-DME Part B, New York, Hospital Department(S)) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 123 clinicians in 4 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Psychiatry (77), Nurse Practitioner (42), Internal Medicine (3); 22 practice at this address and 41 within 10 miles; [full list](https://npiprofile.com/npi/1821394016/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 26, 2022
- **Other identifiers:** Medicaid 00274391 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1821394016) · Data from the CMS NPPES public registry.