NASSAU COUNTY MERCYFIRST-WHISTON HALL NSD
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Quick facts
Facility type
Juvenile
Agency
New York state agency
City/state
Syosset, New York
County
Nassau
Phone
(516) 921-0808Official website
mercyfirst.org (opens in a new tab)Address and map
Bail bond directory
Inmate search and official links
Official inmate lookup
Open the facility or agency inmate search page when one is listed.
- Facility data reviewed
- May 18, 2026
Facility website
Use the facility or agency website for current contact information and instructions.
- Facility phone
- (516) 921-0808
- Destination
- mercyfirst.org (opens in a new tab)
- Facility data reviewed
- May 18, 2026
Visiting information
Check visiting hours, approval steps, identification rules, and the platform used for visits.
- Visitation destination
- mercyfirst.org (opens in a new tab)
- Facility data reviewed
- May 18, 2026
Mail rules
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- Facility data reviewed
- May 18, 2026
Phone and video calls
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- Facility data reviewed
- May 18, 2026
Money, commissary, and funds
Find listed commissary or deposit options and the service used to send funds.
- Facility data reviewed
- May 18, 2026
Property release
Check the facility's instructions for arranging property pickup or release.
- Facility phone
- (516) 921-0808
- Facility data reviewed
- May 18, 2026
Records and letters
Open the listed records, letters, or grievance information.
- Facility phone
- (516) 921-0808
- Facility data reviewed
- May 18, 2026
Related next steps
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