ISLAND GASTROENTEROLOGY CONSULTANTS PC
NPI 1174556963
Specialist in West Islip, NY
About Island Gastroenterology Consultants Pc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ISLAND GASTROENTEROLOGY CONSULTANTS PC (NPI 1174556963) is a healthcare organization registered as a specialist in West Islip, New York and active in the NPI registry since July 2006. The organization holds a CLIA Waiver certificate valid through March 26, 2027 and lists Raj Mariwalla, Gastroenterologist, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Island Gastroenterology Consultants Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
13Medicare enrollment records show 13 clinicians reassign Medicare billing to Island Gastroenterology Consultants PC, which bills Medicare for the services they deliver. Of these, 5 practice within 10 miles. They are listed nearest first.
Clinicians by Medicare Specialty 4
Clinicians, nearest first (13)
Bronx, NY 10467
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 33D2167519
Island Gastroenterology Consultants · West Islip, NYFrequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Island Gastroenterology Consultants PC's NPI number?
The NPI number for Island Gastroenterology Consultants PC is 1174556963. It was assigned to this organization in the NPPES registry on July 8, 2006.
Where is Island Gastroenterology Consultants PC located?
Island Gastroenterology Consultants PC is located at 1111 Montauk Hwy 3rd Floor, West Islip, NY 11795. The listed phone number is (631) 669-1171.
What is Island Gastroenterology Consultants PC's specialty?
The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.
Is Island Gastroenterology Consultants PC enrolled in Medicare?
Yes. Island Gastroenterology Consultants PC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Island Gastroenterology Consultants PC?
According to the CMS Revalidation Reassignment List (October 2026 release), 13 clinicians in 4 Medicare specialties reassign their Medicare billing to Island Gastroenterology Consultants PC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Anesthesiology (6), Gastroenterology (4) and Internal Medicine (2). Of these, 5 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Island Gastroenterology Consultants PC hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 33D2167519) is associated with this NPI, valid through March 26, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
When was this NPI record last updated?
The NPPES record for Island Gastroenterology Consultants PC was last updated on January 25, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Island Gastroenterology Consultants Pc · NPI 1174556963
Specialist organization in West Islip, New York. Organization record, active in the CMS NPPES registry since July 8, 2006.
## Identity
- **NPI:** 1174556963 (Entity type: Organization)
- **Enumerated:** July 8, 2006
- **Primary specialty:** Specialist · taxonomy 174400000X
- **Organization subpart:** No
- **Authorized official:** Raj Mariwalla, GASTROENTEROLOGIST
## Practice location
- **Address:** 1111 MONTAUK HWY, 3RD FLOOR, West Islip, NY 11795-4910
- **Phone:** (631) 669-1171 · **Fax:** (631) 669-1912
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 13 clinicians in 4 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Anesthesiology (6), Gastroenterology (4), Internal Medicine (2); 5 practice within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 25, 2016
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1174556963) · Data from the CMS NPPES public registry.