NEW YORK GASTROENTEROLOGY ASSOCIATES LLP
NPI 1356428387
Internal Medicine - Gastroenterology in New York, NY
About New York Gastroenterology Associates Llp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NEW YORK GASTROENTEROLOGY ASSOCIATES LLP (NPI 1356428387) is a healthcare organization registered as a gastroenterology in New York, New York and active in the NPI registry since November 2006. The organization holds 2 active CLIA laboratory certificates and lists Mary Ryan, Billing Director, 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)
New York Gastroenterology Associates Llp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
29Medicare enrollment records show 29 clinicians reassign Medicare billing to New York Gastroenterology Associates LLP, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 24 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 3
Nearest to this location (20)
See all 29New York, NY 10029
New York, NY 10065
New York, NY 10016
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 2
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 33D2326788
New York Gastroenterology Associates LLP · New York, NYCertificate of Waiver 33D2326356
New York Gastroenterology Associates · New York, 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 New York Gastroenterology Associates LLP's NPI number?
The NPI number for New York Gastroenterology Associates LLP is 1356428387. It was assigned to this organization in the NPPES registry on November 1, 2006.
Where is New York Gastroenterology Associates LLP located?
New York Gastroenterology Associates LLP is located at 311 E 79th St Suite 2A, New York, NY 10021. The listed phone number is (212) 996-6633.
What is New York Gastroenterology Associates LLP's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is New York Gastroenterology Associates LLP enrolled in Medicare?
Yes. New York Gastroenterology Associates LLP is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through New York Gastroenterology Associates LLP?
According to the CMS Revalidation Reassignment List (October 2026 release), 29 clinicians in 3 Medicare specialties reassign their Medicare billing to New York Gastroenterology Associates LLP. 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 (19), Pathology (9) and Internal Medicine (1). Of these, 1 practice at this address and 24 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does New York Gastroenterology Associates LLP hold CLIA laboratory certificates?
Yes. 2 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.
When was this NPI record last updated?
The NPPES record for New York Gastroenterology Associates LLP was last updated on May 9, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# New York Gastroenterology Associates Llp · NPI 1356428387
Gastroenterology organization in New York, New York. Organization record, active in the CMS NPPES registry since November 1, 2006.
## Identity
- **NPI:** 1356428387 (Entity type: Organization)
- **Enumerated:** November 1, 2006
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **Organization subpart:** No
- **Authorized official:** Mary Ryan, BILLING DIRECTOR
## Practice location
- **Address:** 311 E 79TH ST, SUITE 2A, New York, NY 10021-0903
- **Phone:** (212) 996-6633 · **Fax:** (212) 996-6677
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 29 clinicians in 3 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Gastroenterology (19), Pathology (9), Internal Medicine (1); 1 practice at this address and 24 within 10 miles; [full list](https://npiprofile.com/npi/1356428387/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 9, 2023
- **CLIA laboratory certificates:** 2 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1356428387) · Data from the CMS NPPES public registry.