John T. Mather Memorial Hospital
NPI 1073863635 · Hospice and Palliative Medicine (Family Medicine) Physician · Port Jefferson, NY
Enrolled with Medicare as Part B Supplier - Hospital Department(s) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John T. Mather Memorial Hospital is a Hospice and Palliative Medicine (Family Medicine) Physician organization in Port Jefferson, NY (NPI 1073863635).
Provider details
- NPI number
- 1073863635
- Entity type
- Organization
- Primary specialty
- Hospice and Palliative Medicine (Family Medicine) PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Joseph Wisnoski, Cfo, Vp- Finance(631) 473-1320
- License
- 225349-1 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-09-11
- Last updated
- 2012-09-11
Frequently asked questions
- What is John T. Mather Memorial Hospital's NPI number?
- John T. Mather Memorial Hospital's National Provider Identifier (NPI) is 1073863635, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is John T. Mather Memorial Hospital?
- John T. Mather Memorial Hospital is classified in the NPPES registry as Hospice and Palliative Medicine (Family Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is John T. Mather Memorial Hospital located?
- John T. Mather Memorial Hospital's practice location on file with NPPES is 75 North Country Rd, Port Jefferson, NY 11777-2190.
- What is John T. Mather Memorial Hospital's phone number?
- The practice phone number listed in the NPPES registry for John T. Mather Memorial Hospital is (631) 473-1320.
- Does John T. Mather Memorial Hospital accept Medicare?
- John T. Mather Memorial Hospital is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for John T. Mather Memorial Hospital?
- The authorized official listed on John T. Mather Memorial Hospital's NPPES record is Joseph Wisnoski, Cfo, Vp- Finance. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is John T. Mather Memorial Hospital's NPI active?
- Yes — John T. Mather Memorial Hospital's NPI (1073863635) is active in the NPPES registry as of the last update on 2012-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.