Greenwich Ambulatory Surgery Center LLC
NPI 1780835991 · Ophthalmologic Surgery Clinic/Center · Greenwich, CT
Greenwich Ambulatory Surgery Center LLC is a Ophthalmologic Surgery Clinic/Center organization in Greenwich, CT (NPI 1780835991).
Provider details
- NPI number
- 1780835991
- Entity type
- Organization
- Primary specialty
- Ophthalmologic Surgery Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Kenneth Rosenquest, Administrator(860) 833-2375
Specialties & taxonomies
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
- 2008-10-07
- Last updated
- 2008-12-30
Frequently asked questions
- What is Greenwich Ambulatory Surgery Center LLC's NPI number?
- Greenwich Ambulatory Surgery Center LLC's National Provider Identifier (NPI) is 1780835991, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Greenwich Ambulatory Surgery Center LLC?
- Greenwich Ambulatory Surgery Center LLC is classified in the NPPES registry as Ophthalmologic Surgery Clinic/Center (Ambulatory Health Care Facilities).
- Where is Greenwich Ambulatory Surgery Center LLC located?
- Greenwich Ambulatory Surgery Center LLC's practice location on file with NPPES is 55 Holly Hill Ln, Greenwich, CT 06830-6074.
- What is Greenwich Ambulatory Surgery Center LLC's phone number?
- The practice phone number listed in the NPPES registry for Greenwich Ambulatory Surgery Center LLC is (860) 833-2375.
- Who is the authorized official for Greenwich Ambulatory Surgery Center LLC?
- The authorized official listed on Greenwich Ambulatory Surgery Center LLC's NPPES record is Kenneth Rosenquest, Administrator. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Greenwich Ambulatory Surgery Center LLC's NPI active?
- Yes — Greenwich Ambulatory Surgery Center LLC's NPI (1780835991) is active in the NPPES registry as of the last update on 2008-12-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.