Mather Hospital

What Mather Hospital does

Mather Hospital, legally John T. Mather Memorial Hospital, is a 248-bed accredited non-profit community teaching hospital founded in 1925 in Port Jefferson, New York, serving Suffolk County on Long Island. It operates as a member of Northwell Health — New York State's largest health care provider, with 21 hospitals, 850+ outpatient facilities, and more than 12,000 affiliated physicians system-wide. Mather's clinical portfolio spans emergency medicine, inpatient and outpatient care, robotic and minimally invasive surgery, bariatric and metabolic surgery, orthopedics and joint replacement, cardiovascular care, neurosciences (including an Epilepsy Monitoring Unit), cancer care, behavioral health, wound and hyperbaric oxygen therapy, and chronic disease management programs. The hospital runs ACGME-accredited residency programs (Internal Medicine, Transitional Year, Diagnostic Radiology, Interventional Radiology, Psychiatry) and fellowships in Gastroenterology and Hematology/Oncology, supported by Medicare GME funding.

The hospital's underlying technology stack centers on Intuitive's da Vinci 5 robotic surgery system (full fleet replacement completed June 2026), ORBERA intragastric balloon for non-surgical weight loss, hyperbaric oxygen therapy chambers, minimally invasive spine and hip arthroscopy techniques, and the FollowMyHealth patient portal built on athenahealth infrastructure. Diagnostic and surgical capabilities support Center of Excellence designations from the Surgical Review Corporation in Metabolic and Bariatric Surgery (COEMBS), Bariatric Revision Surgery (COEBRS — first in the US), and Robotic Surgery (COERS), alongside Joint Commission Advanced Total Hip and Knee Replacement certification, MBSAQIP accreditation, Level One Gold Geriatric ED accreditation, and three ANCC Magnet designations (2013, 2017, 2022).

Mather generates revenue primarily through fee-for-service patient care billed to commercial insurers, Medicare, and Medicaid, supplemented by Medicare GME funding for graduate medical education and philanthropy channeled through the JTM Foundation (Federal Tax ID 11-2714670). The go-to-market motion combines direct-to-consumer channels (Find a Doctor portal, FollowMyHealth patient portal, request-an-appointment forms, wellness blogs) with physician referrals both internal to Northwell Health's network and external, supported by community wellness programming (Narcan training, sunscreen dispensers, support groups, free bariatric seminars). Pricing is not publicly disclosed; bariatric procedures are typically covered by most commercial insurance plans, while free community programs serve as top-of-funnel patient acquisition.

Name

Mather Hospital

Legal name

John T. Mather Memorial Hospital

Website

https://matherhospital.org

Company type

Private

Founded year

1925

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Mather Hospital is a 248-bed non-profit community teaching hospital in Port Jefferson, New York, part of Northwell Health, delivering comprehensive clinical services — including robotic surgery, bariatric, orthopedic, cardiac, neuroscience, and emergency care — to Suffolk County residents.

Ownership category

akta.pro rank

Product category

Community Hospital Services

NAICS

General Medical and Surgical Hospitals (6221), General Medical and Surgical Hospitals (622110)

SIC

Services-General Medical & Surgical Hospitals, Nec (8062), Services-Hospitals (8060)

akta.pro primary industry

Hospital-Based Emergency Departments (EDs) (HLAFADAA)

akta.pro secondary industries

Cardiac & Cardiothoracic Specialty Hospitals (HLAFAHAA), Neurology & Neurosurgical Specialty Hospitals (HLAFAHAD)

Keywords

• Community hospital services
• Robotic surgery
• Bariatric surgery
• Cardiac care
• Graduate medical education

Headquarters

HQ city

Port Jefferson

HQ country

United States

HQ region

North America

Offices4 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Technology or R&D, Marketing or Sales, Others

Revenue model

1. Patient Care Services: As a non-profit community teaching hospital, Mather Hospital generates the majority of its revenue through patient care services billed to patients and insurers (private insurance, Medicare, Medicaid). Services span emergency medicine, inpatient care, outpatient procedures, surgical services, and specialty care (orthopedics, bariatric surgery, heart care, neurosciences, cancer care).
2. Graduate Medical Education: Mather Hospital operates ACGME-accredited residency programs (Internal Medicine, Transitional Year, Diagnostic Radiology, Interventional Radiology, Psychiatry) and fellowships (Gastroenterology, Hematology/Oncology), contributing to hospital revenue through Medicare GME funding.
3. Philanthropy and Donations: The JTM Foundation raises charitable donations for Mather Hospital through online giving, mail donations, donor-advised funds, gifts of stock, IRA rollovers (QCDs), planned giving, matching gifts, and employee giving programs. All donations solely benefit Mather Hospital's programs, services, and growth initiatives.
4. Ambulatory and Outpatient Services: Mather Hospital generates revenue from outpatient behavioral health services, hyperbaric oxygen therapy, cardiac rehabilitation, diabetes management programs, medical weight management, bariatric surgery (including procedures, seminars, and aftercare), and other outpatient specialty clinics.

Pricing tiers

Go-to-market motion2 records

Distribution channels7 records

Marketing channels8 records

Core offering

Mather Hospital is a 248-bed non-profit community teaching hospital in Port Jefferson, New York, providing a comprehensive range of inpatient, outpatient, emergency, and surgical services to Suffolk County residents. Core clinical offerings include robotic surgery (da Vinci 5), bariatric and metabolic surgery, orthopedics, cardiology, neurosciences, cancer care, and emergency medicine, supported by ACGME-accredited graduate medical education programs.

Product overview

Mather Hospital is a 248-bed community teaching hospital offering a comprehensive portfolio of healthcare services as part of Northwell Health. The hospital operates as an integrated service network centered around its core specialties: robotic surgery (da Vinci 5), bariatric/weight management surgery (Center of Excellence), cardiovascular care, orthopedics, neurosciences, and emergency services. Supporting these clinical services are patient education platforms including Wellness@Mather and Weight Loss Matters blogs, Graduate Medical Education residencies, Magnet-recognized nursing excellence programs, and extensive support groups. The hospital's services range from surgical interventions (robotic, bariatric, orthopedic) to medical weight management, emergency care, and chronic disease management programs.

Differentiator

Problem solved

Functional benefit

Brands

• JTM Foundation: The hospital's fundraising and philanthropy arm, working to foster relationships with individuals and organizations to support exceptional health care at Mather Hospital. Federal Tax ID: 11-2714670.

Products and services

• da Vinci 5 Robotic Surgery State-of-the-art robotic surgical system enabling complex procedures through small incisions with high-definition visualization, offering benefits including smaller incisions, less blood loss, shorter hospital stays, fewer complications, and faster recovery for surgical patients.
• Bariatric Surgery Program (Center of Excellence) Comprehensive weight loss surgery program offering gastric bypass, sleeve gastrectomy, gastric banding, revisional surgery, endoscopic procedures, and metabolic surgery for patients with obesity, Type 2 diabetes, and metabolic syndrome. Recognized as a Center of Excellence in Metabolic and Bariatric Surgery.
• Heart Care / Cardiology Advanced cardiovascular services including cardiac rehabilitation, electrophysiology, diagnostic cardiology, interventional procedures, and the first US implantation of the world's first dual chamber leadless pacemaker.
• Orthopedics Comprehensive orthopedic care including total joint replacement (hip, knee, ankle), spine surgery, sports medicine, minimally invasive hip arthroscopy, and robotic-assisted procedures. Holds advanced total hip and knee replacement certification from The Joint Commission.
• Neurosciences Collaborative neurological care for brain and spine conditions, including the Epilepsy Monitoring Unit (EMU) opened in 2024 and treatment for stroke, epilepsy, and other neurological disorders.
• Medical Weight Management Program 12-week medically supervised weight management program offering nutrition evaluation, weekly classes, customized Mediterranean-based meal plans, and FDA-approved prescription weight loss medications for patients seeking non-surgical weight loss solutions.
• Frey Family Emergency Department

Quantifiable outcome

• 24 consecutive 'A' grades in patient safety from The Leapfrog Group — a national record
• +8 more outcomes

Named customers8 records

Segments8 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

Feature7 records

Partnerships

One partnership is on record.

• Northwell HealthcoreStrategic or Co-development PartnerMather Hospital is an integral member of Northwell Health — New York State's largest health care provider and private employer with 21 hospitals, 850+ outpatient facilities, more than 12,000 affiliated physicians, and 81,000 employees (18,900 nurses, 4,900 employed doctors). Northwell provides shared resources, specialist referrals, integrated care pathways, branding, financial backing, and the Feinstein Institutes for Medical Research for medical breakthroughs. Mather participates in Northwell's expanded network following Nuvance Health's integration.

Scale indicators14 records

Recent moves8 records

Expansion highlights6 records

Regional players

• Stony Brook Southampton Hospital: Stony Brook Southampton Hospital is a community hospital in Suffolk County (East End), affiliated with Stony Brook Medicine, providing comparable community hospital services with overlapping patient populations from eastern Long Island.

Direct peers

• Long Island Community Hospital: Long Island Community Hospital is a 306-bed community teaching hospital in Patchogue, Suffolk County, recently integrated into NYU Langone, offering comparable community hospital services including emergency, surgical, and specialty care to overlapping Suffolk County patients.
• St. Charles Hospital: St. Charles Hospital is a Catholic Health community hospital in Port Jefferson (the same village as Mather), providing direct head-to-head competition in the immediate Port Jefferson service area with overlapping emergency, surgical, and rehabilitation services.
• Good Samaritan Hospital: Good Samaritan Hospital is a 437-bed Catholic Health community teaching hospital in West Islip, Suffolk County, directly competing with Mather for Suffolk County patients across emergency, surgical, cardiac, and obstetric services.
• Stony Brook University Hospital: Stony Brook University Hospital is a 624-bed academic medical center in Stony Brook, Suffolk County, Long Island, serving the same primary geographic market as Mather with overlapping specialties including heart care, oncology, neurosciences, and emergency services. Both operate as teaching hospitals on Long Island.
• South Shore University Hospital: South Shore University Hospital is a Northwell Health-affiliated hospital in Oceanside, NY, sharing the same parent system as Mather with comparable community teaching hospital positioning and similar specialty services including cardiac, surgical, and emergency care on Long Island.
• Huntington Hospital: Huntington Hospital is a Northwell Health community hospital in Suffolk County, Long Island, providing comparable community hospital services including emergency, surgical, and specialty care to overlapping Suffolk County patient populations.
• Peconic Bay Medical Center: Peconic Bay Medical Center is a Northwell Health community hospital in Riverhead, Suffolk County, offering comparable community hospital services including emergency medicine, surgical services, and specialty care to overlapping East End Long Island patients.

Broad incumbents

• NYU Langone Hospital—Long Island: NYU Langone Hospital—Long Island (formerly Winthrop) is a 591-bed academic tertiary hospital in Mineola, Nassau County, providing higher-acuity specialty care that competes with Mather for complex cardiac, neurosurgical, and oncologic cases from Long Island residents.
• Mount Sinai South Nassau: Mount Sinai South Nassau is a 455-bed community teaching hospital in Oceanside, Nassau County, part of the Mount Sinai Health System, offering comparable community hospital services with similar Magnet status and academic affiliations on Long Island.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/matherhospital
• YouTubeyoutube.com/user/MatherHospital
• Facebookfacebook.com/matherhospital
• LinkedInlinkedin.com/company/matherhospital
• Instagraminstagram.com/matherhospital/?hl=en

Compliance14 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Mather Hospital