Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

John T. Mather Memorial Hospital

Organization Psychiatric Hospital Unit · NPI 1093718728

John T. Mather Memorial Hospital is a Psychiatric Hospital Unit in Port Jefferson, New York. Licensed in New York. Registered with an NPI since 2005.

Licensed in
NY
In the registry since
2005
Specialties on file
5

Practice location Address checks out

75 N Country Rd
Port Jefferson, NY 11777-2119
Phone: (631) 473-1320
Fax: (631) 686-1459
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

General Acute Care Hospital (primary) Taxonomy 282N00000X · Licence 5149000 (NY)
Psychiatric Hospital Unit Taxonomy 273R00000X · Licence 5149000 (NY)
Skilled Nursing Facility Taxonomy 314000000X · Licence 5149000 (NY)
Pharmacy Taxonomy 333600000X
Community/Retail Pharmacy Taxonomy 3336C0003X

Record details

NPI number1093718728
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Michele Cusack — Evp & Cfo · (516) 321-6058
NPI enumeratedMay 27, 2005
Last updated in NPPESJuly 28, 2025
Certification dateJuly 28, 2025
Mailing address75 N Country Rd, Port Jefferson, NY 11777-2190