Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

John T. Mather Memorial Hospital

General Acute Care Hospital in Port Jefferson, NY · enumerated 2005 · authorized official Michele Cusack, Evp & Cfo.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1093718728

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Registry record

Entity type Organization (Type 2)

Legal business name John T. Mather Memorial Hospital

Practice address 75 N Country Rd, Port Jefferson, NY, 11777

Phone (631) 473-1320

Fax (631) 686-1459

Enumeration date May 27, 2005

Last updated in NPPES Jul 28, 2025

Taxonomy & classification

273R00000X Psychiatric Hospital Unit Hospital Units · License 5149000 (NY) Secondary

282N00000X General Acute Care Hospital Hospitals · License 5149000 (NY) Primary

314000000X Skilled Nursing Facility Nursing & Custodial Care Facilities · License 5149000 (NY) Secondary

333600000X Pharmacy Suppliers Secondary

3336C0003X Community/Retail Pharmacy Suppliers Secondary

Authorized official

Name Michele Cusack

Title Evp & Cfo

Phone (516) 321-6058

Other identifiers

Identifier	Type	State	Issuer
1206575	Medicaid	MA	-
21920	Medicaid	MD	-
100822	Medicaid	WA	-
3300185	Medicaid	NC	-
HSP42196	Medicaid	CA	-
110851658	Medicaid	PA	-
HSP32196	Medicaid	CA	-
00274364	Medicaid	NY	-
3044310	Medicaid	CT	-
6004504	Medicaid	NJ	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where is John T. Mather Memorial Hospital located?

The practice location on file with NPPES is in Port Jefferson, NY.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2025-07-28. Verify at npiregistry.cms.hhs.gov.

Providers at this address

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Alexander Gorbatsevich Internal Medicine Physician · Port Jefferson, NY NPI 1538161005 Jacob Sokol Geriatric Medicine (Internal Medicine) Physician · Port Jefferson, NY NPI 1245221167 Tracy Morea Physician Assistant · Port Jefferson, NY NPI 1265463541 Michelle Price Diagnostic Radiology Physician · Port Jefferson, NY NPI 1629080478 Joseph Carrucciu Diagnostic Radiology Physician · Port Jefferson, NY NPI 1063424828 Theresa Grimes Family Nurse Practitioner · Port Jefferson, NY NPI 1912910910 Kenneth Hirsch Emergency Medical Services (Emergency Medicine) Physician · Port Jefferson, NY NPI 1972618296 John T. Mather Memorial Hospital Psychiatry Physician · Port Jefferson Station, NY NPI 1376642371

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-28.