University Hospital at Stony Brook
NPI 1558470427 · Peritoneal Dialysis Registered Nurse · Hampton Bays, NY
Enrolled with Medicare as Part a Provider - End-Stage Renal Disease Facility (esrd) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
University Hospital at Stony Brook is a Peritoneal Dialysis Registered Nurse organization in Hampton Bays, NY (NPI 1558470427).
Provider details
- NPI number
- 1558470427
- Entity type
- Organization
- Primary specialty
- Peritoneal Dialysis Registered NurseNursing Service Providers
- Parent organization
- University Hospital at Stony Brook
- Organization subpart
- Yes
- Authorized official
- Calogero Gresalfi, Director(631) 723-4213
Specialties & taxonomies
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
- Stony Brook Southampton Hospital Regional Dialysis Center
Registry dates
- Enumerated
- 2006-08-30
- Last updated
- 2018-02-01
Frequently asked questions
- What is University Hospital at Stony Brook's NPI number?
- University Hospital at Stony Brook's National Provider Identifier (NPI) is 1558470427, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is University Hospital at Stony Brook?
- University Hospital at Stony Brook is classified in the NPPES registry as Peritoneal Dialysis Registered Nurse (Nursing Service Providers).
- Where is University Hospital at Stony Brook located?
- University Hospital at Stony Brook's practice location on file with NPPES is 184 W Montauk Hwy, Hampton Bays, NY 11946-2304.
- What is University Hospital at Stony Brook's phone number?
- The practice phone number listed in the NPPES registry for University Hospital at Stony Brook is (631) 723-4200.
- Does University Hospital at Stony Brook accept Medicare?
- University Hospital at Stony Brook 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 University Hospital at Stony Brook?
- The authorized official listed on University Hospital at Stony Brook's NPPES record is Calogero Gresalfi, Director. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is University Hospital at Stony Brook's NPI active?
- Yes — University Hospital at Stony Brook's NPI (1558470427) is active in the NPPES registry as of the last update on 2018-02-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.