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

John T. Mather Memorial Hospital

Organization Undersea and Hyperbaric Medicine (Preventive Medicine) Physician · NPI 1639585706

John T. Mather Memorial Hospital is an Undersea and Hyperbaric Medicine (Preventive Medicine) Physician in Port Jefferson, New York. Registered with an NPI since 2014.

In the registry since
2014
Specialties on file
4

Practice location Address checks out

75 N Country Rd
Port Jefferson, NY 11777-2119
Phone: (631) 476-2768
Fax: (631) 474-4939
Show map & directions

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

Specialties & licences

Undersea and Hyperbaric Medicine (Preventive Medicine) Physician (primary) Taxonomy 2083P0011X
Health Service Clinic/Center Taxonomy 261QH0100X
Recovery Care Clinic/Center Taxonomy 261QR0800X
Rehabilitation Hospital Taxonomy 283X00000X

Record details

NPI number1639585706
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Joseph Wisnoski — Sr. Vp & Cmo · (631) 473-1320
NPI enumeratedJuly 9, 2014
Last updated in NPPESJuly 11, 2014
Mailing address75 N Country Rd, Port Jefferson, NY 11777-2119