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GASTROENTEROLOGY ASSOCIATES OF ITHACA, PC
NPI 1538113709
Internal Medicine - Gastroenterology in Ithaca, NY

Active since May 20, 2006
2435 N TRIPHAMMER RD, ITHACA, NY 14850(607) 272-5011(607) 272-5861 Get Directions Write a Review

NPPES record last updated: January 9, 2013. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Gastroenterology Associates Of Ithaca, Pc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GASTROENTEROLOGY ASSOCIATES OF ITHACA, PC (NPI 1538113709) is a healthcare organization registered as a gastroenterology in Ithaca, New York and active in the NPI registry since May 2006. The organization lists Peter T. Brennan, President, as its authorized official.

NPPES Registry Identity

NPI1538113709
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameGASTROENTEROLOGY ASSOCIATES OF ITHACA, PC
Location Address2435 N TRIPHAMMER RDIthaca, NY 14850-1047
Mailing Address2435 N Triphammer RdIthaca, NY 14850-1047 · (607) 272-5011 · Fax (607) 272-5861
Phone(607) 272-5011
Fax(607) 272-5861
Organization SubpartNo
Authorized OfficialPeter T. BrennanPresident · (607) 272-5011
Enumeration DateMay 20, 2006
Last NPPES UpdateJanuary 9, 2013
✔ NPI 1538113709 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
2435 N TRIPHAMMER RD, Ithaca, NY 14850
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Other Identifiers 2

Medicare PIN55830ANY
Medicaid02423352NY

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Gastroenterology Associates Of Ithaca, Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

5

Medicare enrollment records show 5 clinicians reassign Medicare billing to Gastroenterology Associates Of Ithaca, PC, which bills Medicare for the services they deliver. Of these, 4 practice at this address and 5 within 10 miles. They are listed nearest first.

Clinicians, nearest first (5)

Caitlin Foor-Pessin, MD
Gastroenterology
NPI 1215290846
2435 N TRIPHAMMER RD
Ithaca, NY 14850
(607) 272-5011
✔ PECOS✔ Accepts MedicareSame address
Brent Lemberg, MD
Gastroenterology
NPI 1710931654
2435 N TRIPHAMMER RD
Ithaca, NY 14850
(607) 272-5011
✔ PECOS✔ Accepts MedicareSame address
Adam Riordan
Gastroenterology
NPI 1508126988
2435 N TRIPHAMMER RD
Ithaca, NY 14850
(607) 272-5011
✔ PECOS✔ Accepts MedicareSame address
Paige Robinson, DO
Gastroenterology
NPI 1548754617
2435 N TRIPHAMMER RD
Ithaca, NY 14850
(607) 272-5011
✔ PECOS✔ Accepts MedicareSame address
Kevin Jones, FNP
Nurse Practitioner
NPI 1710524616
101 DATES DR
Ithaca, NY 14850
(607) 277-2365
✔ PECOS✔ Accepts Medicare2.9 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently 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 Gastroenterology Associates Of Ithaca, PC's NPI number?

The NPI number for Gastroenterology Associates Of Ithaca, PC is 1538113709. It was assigned to this organization in the NPPES registry on May 20, 2006.

Where is Gastroenterology Associates Of Ithaca, PC located?

Gastroenterology Associates Of Ithaca, PC is located at 2435 N Triphammer Rd, Ithaca, NY 14850. The listed phone number is (607) 272-5011.

What is Gastroenterology Associates Of Ithaca, PC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Gastroenterology Associates Of Ithaca, PC enrolled in Medicare?

Yes. Gastroenterology Associates Of Ithaca, PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Gastroenterology Associates Of Ithaca, PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 5 clinicians in 2 Medicare specialties reassign their Medicare billing to Gastroenterology Associates Of Ithaca, 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 Gastroenterology (4) and Nurse Practitioner (1). Of these, 4 practice at this address and 5 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Gastroenterology Associates Of Ithaca, PC was last updated on January 9, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.