Islandwide Gastroenterology PC
NPI 1427290907 · Gastroenterology Physician · Garden City, NY
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Islandwide Gastroenterology PC is a Gastroenterology Physician organization in Garden City, NY (NPI 1427290907).
Provider details
- NPI number
- 1427290907
- Entity type
- Organization
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Philip Cassar, Ceo(516) 458-6258
- License
- 233299 (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
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
- 2009-03-31
- Last updated
- 2011-03-24
Frequently asked questions
- What is Islandwide Gastroenterology PC's NPI number?
- Islandwide Gastroenterology PC's National Provider Identifier (NPI) is 1427290907, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Islandwide Gastroenterology PC?
- Islandwide Gastroenterology PC is classified in the NPPES registry as Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Islandwide Gastroenterology PC located?
- Islandwide Gastroenterology PC's practice location on file with NPPES is 901 Stewart Ave, Garden City, NY 11530-4893.
- What is Islandwide Gastroenterology PC's phone number?
- The practice phone number listed in the NPPES registry for Islandwide Gastroenterology PC is (516) 458-6258.
- Does Islandwide Gastroenterology PC accept Medicare?
- Islandwide Gastroenterology PC 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 Islandwide Gastroenterology PC?
- The authorized official listed on Islandwide Gastroenterology PC's NPPES record is Philip Cassar, Ceo. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Islandwide Gastroenterology PC's NPI active?
- Yes — Islandwide Gastroenterology PC's NPI (1427290907) is active in the NPPES registry as of the last update on 2011-03-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.