Providers
190
Locations
2
Specialties
12
Insurance Plans
27
About John T Mather Memorial Hospital
Background and practice information
John T Mather Memorial Hospital is a large multi-specialty medical practice based in Port Jefferson, NY, with 190 affiliated healthcare providers practicing across 2 locations.
The practice brings together providers across multiple specialties, including nurse practitioner, physician assistant, internal medicine, and psychiatry. Its providers are in-network with 27 insurance plans, though coverage varies by individual provider and should be confirmed before scheduling.
Across its providers, the practice has a solid average Merit-based Incentive Payment System (MIPS) score of 84.6 out of 100, a quality measure published by the Centers for Medicare & Medicaid Services.
Practice Locations
2 locations
John T Mather Memorial HospitalPrimary
75 N COUNTRY RD, Port Jefferson, NY 117772119
(631) 473-1320
Affiliations
Hospitals where providers at John T Mather Memorial Hospital hold admitting privileges
Insurance Networks
Accepted insurance plans and networks
John T Mather Memorial Hospital accepts 109 plans from 11 insurers, including Cigna, Aetna, UnitedHealthcare.
Source: CMS Transparency in Coverage filings (March 2026). Network participation may change — verify with the provider's office before scheduling.
Quality & Performance
Specialties at John T Mather Memorial Hospital
Provider specialties represented at this practice
Healthcare Providers in Port Jefferson
189 providers practice here
Mubdiul Ali, MD
Critical Care (intensivists) · Telehealth
Port Jefferson, NY
John Anderson, MD
Critical Care (intensivists)
Port Jefferson, NY
Melissa Devlin, MD
Critical Care (intensivists)
Port Jefferson, NY
Glen Granati, MD
Critical Care (intensivists)
Port Jefferson, NY
Maritza Groth, MD
Critical Care (intensivists)
Port Jefferson, NY
Jeffrey Kott, MD
Critical Care (intensivists)
Port Jefferson, NY
Wilma Lopez, MD
Critical Care (intensivists)
Port Jefferson, NY
Joseph Ng, MD
Critical Care (intensivists)
Port Jefferson, NY
Isaac Pak, DO
Critical Care (intensivists)
Port Jefferson, NY
Hassan Raza, MD
Critical Care (intensivists)
Port Jefferson, NY
Souheil Samaha, MD
Critical Care (intensivists)
Port Jefferson, NY
Andrew Weber, MD
Critical Care (intensivists) · Telehealth
Port Jefferson, NY
Mohammad Bilal, MD
Diagnostic Radiology
Port Jefferson, NY
Joseph Carrucciu, MD
Diagnostic Radiology
Port Jefferson, NY
Lan Chan, MD
Diagnostic Radiology
Port Jefferson, NY
Michael Dayan, MD
Diagnostic Radiology
Port Jefferson, NY
Michelle Price, MD
Diagnostic Radiology
Port Jefferson, NY
Elham Safaie, MD
Diagnostic Radiology
Port Jefferson, NY
Andrus Alian, DO
Emergency Medicine
Port Jefferson, NY
Julian Andrade, MD
Emergency Medicine
Port Jefferson, NY
Ayse Avcioglu, MD
Emergency Medicine
Port Jefferson, NY
Melissa Cusumano, DO
Emergency Medicine
Port Jefferson, NY
Angela Devine, DO
Emergency Medicine
Port Jefferson, NY
Christopher Driscoll, DO
Emergency Medicine
Port Jefferson, NY
Frequently Asked Questions
Common questions about John T Mather Memorial Hospital
How many providers are at John T Mather Memorial Hospital?
John T Mather Memorial Hospital has 190 affiliated healthcare providers across 2 locations. You can browse the full provider roster, with specialties and locations, on this page.
What specialties does John T Mather Memorial Hospital offer?
The practice includes providers in nurse practitioner, physician assistant, internal medicine, and psychiatry, among others. Use the specialty filter on the provider list to find a specific type of provider.
What insurance does John T Mather Memorial Hospital accept?
Providers at John T Mather Memorial Hospital are collectively in-network with 27 insurance plans. Acceptance varies by individual provider, so confirm your specific plan with the office before your visit.
Does John T Mather Memorial Hospital have a quality rating?
The practice's providers have an average MIPS quality score of 84.6 out of 100, based on Centers for Medicare & Medicaid Services data. MIPS measures performance across quality, cost, care coordination, and use of health technology.
Where is John T Mather Memorial Hospital located?
John T Mather Memorial Hospital's primary location is in Port Jefferson, NY, with 1 additional location listed on this page. See the contact section for the full address and phone number.
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