GASTROINTESTINAL CARE OF LONG ISLAND PLLC
NPI 1265571863
Internal Medicine - Gastroenterology in Massapequa, NY
About Gastrointestinal Care Of Long Island Pllc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GASTROINTESTINAL CARE OF LONG ISLAND PLLC (NPI 1265571863), doing business as Gastrointestinal Care Of Long Island Pc, is a healthcare organization registered as a gastroenterology in Massapequa, New York and active in the NPI registry since February 2007. The organization holds a CLIA Waiver certificate valid through December 6, 2027 and lists Jean M Pfeifle, Rcm Operations Manager, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 2
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)
Gastrointestinal Care Of Long Island Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
223Medicare enrollment records show 223 clinicians reassign Medicare billing to Gastrointestinal Care Of Long Island PLLC, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 17 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 8
Nearest to this location (20)
See all 223Source: 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 33D1077364
Gastrointestinal Care Of Long Island PLLC Dba Allied Digestive Health Medical Group Of New York · Massapequa, 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 Gastrointestinal Care Of Long Island PLLC's NPI number?
The NPI number for Gastrointestinal Care Of Long Island PLLC is 1265571863. It was assigned to this organization in the NPPES registry on February 6, 2007. The provider is doing business as Allied Digestive Health Medical Group of New York. The provider was formerly known as Gastrointestinal Care Of Long Island PC.
Where is Gastrointestinal Care Of Long Island PLLC located?
Gastrointestinal Care Of Long Island PLLC is located at 187 Veterans Blvd, Massapequa, NY 11758. The listed phone number is (516) 795-5523.
What is Gastrointestinal Care Of Long Island PLLC's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Gastrointestinal Care Of Long Island PLLC enrolled in Medicare?
Yes. Gastrointestinal Care Of Long Island PLLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Gastrointestinal Care Of Long Island PLLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 223 clinicians in 8 Medicare specialties reassign their Medicare billing to Gastrointestinal Care Of Long Island PLLC. 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 Gastroenterology (77), Anesthesiology (73) and Nurse Practitioner (30). Of these, 1 practice at this address and 17 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Gastrointestinal Care Of Long Island PLLC hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 33D1077364) is associated with this NPI, valid through December 6, 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 Gastrointestinal Care Of Long Island PLLC was last updated on January 26, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Gastrointestinal Care Of Long Island Pllc · NPI 1265571863
Gastroenterology organization in Massapequa, New York. Organization record, active in the CMS NPPES registry since February 6, 2007.
## Identity
- **NPI:** 1265571863 (Entity type: Organization)
- **Enumerated:** February 6, 2007
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **Also known as:** Allied Digestive Health Medical Group of New York (Doing Business As)
- **Organization subpart:** No
- **Authorized official:** Jean Pfeifle, RCM OPERATIONS MANAGER
## Practice location
- **Address:** 187 VETERANS BLVD, Massapequa, NY 11758-4982
- **Phone:** (516) 795-5523 · **Fax:** (516) 795-5521
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 223 clinicians in 8 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Gastroenterology (77), Anesthesiology (73), Nurse Practitioner (30); 1 practice at this address and 17 within 10 miles; [full list](https://npiprofile.com/npi/1265571863/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 26, 2024
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1265571863) · Data from the CMS NPPES public registry.