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GASTROENTEROLOGY ASSOCIATES INC
NPI 1093723546
Internal Medicine - Gastroenterology in Providence, RI

Active since August 03, 2006
44 WEST RIVER STREET, PROVIDENCE, RI 02904(401) 274-4800(401) 454-0410 Get Directions Write a Review

NPPES record last updated: July 25, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Gastroenterology Associates Inc NPPES

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

GASTROENTEROLOGY ASSOCIATES INC (NPI 1093723546) is a healthcare organization registered as a gastroenterology in Providence, Rhode Island and active in the NPI registry since August 2006. The organization maintains a secondary practice location in Attleboro and lists Neil R Greenspan, President, as its authorized official.

NPPES Registry Identity

NPI1093723546
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameGASTROENTEROLOGY ASSOCIATES INC
Location Address44 WEST RIVER STREETProvidence, RI 02904
Mailing Address44 West River StreetProvidence, RI 02904-2609 · (401) 274-4800 · Fax (401) 454-0410
Phone(401) 274-4800
Fax(401) 454-0410
Organization SubpartNo
Authorized OfficialNeil R GreenspanPresident · (401) 274-4800
Enumeration DateAugust 3, 2006
Last NPPES UpdateJuly 25, 2025
NPPES CertifiedJuly 25, 2025
✔ NPI 1093723546 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.
44 WEST RIVER STREET, Providence, RI 02904
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Secondary Practice Location 1

Location 1562 Washington StAttleboro, MA 02703-6942 · Phone (401) 274-4800

Other Identifiers 1

Medicaid9000110RI

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 Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

4

Medicare enrollment records show 4 clinicians reassign Medicare billing to Gastroenterology Associates Inc, which bills Medicare for the services they deliver. Of these, 4 practice at this address. They are listed nearest first.

Clinicians, nearest first (4)

Tian Gao, M.D.
Gastroenterology
NPI 1306073846
44 W RIVER ST
Providence, RI 02904
(401) 274-4800
✔ PECOS✔ Accepts MedicareSame address
Brett Kalmowitz, MD
Gastroenterology
NPI 1700817269
44 W RIVER ST
Providence, RI 02904
(401) 274-4800
✔ PECOS✔ Accepts MedicareSame address
Camille Knize
Nurse Practitioner
NPI 1417430083
44 W RIVER ST FL 2
Providence, RI 02904
(401) 274-4800
✔ PECOS✔ Accepts MedicareSame address
Samir Shah, M.D.
Gastroenterology
NPI 1043209398
44 W RIVER ST
Providence, RI 02904
(401) 274-4800
✔ PECOS✔ Accepts MedicareSame address

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 Inc's NPI number?

The NPI number for Gastroenterology Associates Inc is 1093723546. It was assigned to this organization in the NPPES registry on August 3, 2006.

Where is Gastroenterology Associates Inc located?

Gastroenterology Associates Inc is located at 44 West River Street, Providence, RI 02904. The listed phone number is (401) 274-4800.

What is Gastroenterology Associates Inc's specialty?

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

Is Gastroenterology Associates Inc enrolled in Medicare?

Yes. Gastroenterology Associates Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Gastroenterology Associates Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 4 clinicians in 2 Medicare specialties reassign their Medicare billing to Gastroenterology Associates Inc. 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 (3) and Nurse Practitioner (1). Of these, 4 practice at this address. 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 Inc was last updated on July 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.