Glengariff Operating LLC
NPI 1477024966 · Skilled Nursing Facility · Glen Cove, NY
Enrolled with Medicare as Part a Provider - Skilled Nursing Facility · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Glengariff Operating LLC is a Skilled Nursing Facility organization in Glen Cove, NY (NPI 1477024966).
Provider details
- NPI number
- 1477024966
- Entity type
- Organization
- Primary specialty
- Skilled Nursing FacilityNursing & Custodial Care Facilities
- Organization subpart
- No
- Authorized official
- Mark Friedman, Manager / Member(917) 596-1800
Specialties & taxonomies
Nursing & Custodial Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 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
Other names (DBA / former)
- Doing business as
- Glengariff Rehabilitation and Healthcare Center
Registry dates
- Enumerated
- 2018-12-10
- Last updated
- 2020-02-16
- Certified
- 2020-02-16
Frequently asked questions
- What is Glengariff Operating LLC's NPI number?
- Glengariff Operating LLC's National Provider Identifier (NPI) is 1477024966, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Glengariff Operating LLC?
- Glengariff Operating LLC is classified in the NPPES registry as Skilled Nursing Facility (Nursing & Custodial Care Facilities).
- Where is Glengariff Operating LLC located?
- Glengariff Operating LLC's practice location on file with NPPES is 141 Dosoris Ln, Glen Cove, NY 11542-1225.
- What is Glengariff Operating LLC's phone number?
- The practice phone number listed in the NPPES registry for Glengariff Operating LLC is (516) 676-1100.
- Does Glengariff Operating LLC accept Medicare?
- Glengariff Operating LLC 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 Glengariff Operating LLC?
- The authorized official listed on Glengariff Operating LLC's NPPES record is Mark Friedman, Manager / Member. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Glengariff Operating LLC's NPI active?
- Yes — Glengariff Operating LLC's NPI (1477024966) is active in the NPPES registry as of the last update on 2020-02-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.