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GASTROENTEROLOGY ASSOCIATES
NPI 1679574248
Internal Medicine - Gastroenterology in Port Arthur, TX

Active since August 09, 2005
2001 9TH AVE, STE 305, PORT ARTHUR, TX 77642(409) 983-3221(409) 983-3222 Get Directions Write a Review

NPPES record last updated: July 21, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Gastroenterology Associates NPPES

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

GASTROENTEROLOGY ASSOCIATES (NPI 1679574248) is a healthcare organization registered as a gastroenterology in Port Arthur, Texas and active in the NPI registry since August 2005. The organization lists Nezar Ahmed Shobassy, President, as its authorized official.

NPPES Registry Identity

NPI1679574248
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameNEZAR A. SHOBASSY, M.D.P.A.
Location Address2001 9TH AVE, STE 305Port Arthur, TX 77642-2701
Mailing Address2001 9th Ave, Ste 305Port Arthur, TX 77642-2701 · (409) 983-3221 · Fax (409) 983-3222
Phone(409) 983-3221
Fax(409) 983-3222
Organization SubpartNo
Authorized OfficialNezar Ahmed ShobassyPresident · (409) 983-3221
Enumeration DateAugust 9, 2005
Last NPPES UpdateJuly 21, 2022
✔ NPI 1679574248 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.
2001 9TH AVE, Port Arthur, TX 77642
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Other Names 1

Doing Business AsGastroenterology Associates

Other Identifiers 3

Other00L55BTX · Blue Cross
Medicaid083776701TX
OtherDG5493TX · Medicare Railroad

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

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

Medicare Revalidation Due Date

Revalidation due by November 30, 2026

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateTexasEnrollment IDO20040901000303Non-DME Part B · Clinic/Group PracticeDue dateNovember 30, 2026
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Gastroenterology Associates, which bills Medicare for the services this clinician delivers.

Clinician (1)

Nezar Shobassy, MD
Gastroenterology
NPI 1265433031
2001 9TH AVE STE 305
Port Arthur, TX 77642
(409) 983-3221
✔ PECOSSame 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 Nezar A. Shobassy, M.D.P.A.'s NPI number?

The NPI number for Nezar A. Shobassy, M.D.P.A. is 1679574248. It was assigned to this organization in the NPPES registry on August 9, 2005. The provider is doing business as Gastroenterology Associates.

Where is Nezar A. Shobassy, M.D.P.A. located?

Nezar A. Shobassy, M.D.P.A. is located at 2001 9th Ave Ste 305, Port Arthur, TX 77642. The listed phone number is (409) 983-3221.

What is Nezar A. Shobassy, M.D.P.A.'s specialty?

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

Is Nezar A. Shobassy, M.D.P.A. enrolled in Medicare?

Yes. Nezar A. Shobassy, M.D.P.A. is registered in the Medicare PECOS enrollment system.

When is Nezar A. Shobassy, M.D.P.A.'s Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Texas, Clinic/Group Practice) is due for revalidation by November 30, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Nezar A. Shobassy, M.D.P.A.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Gastroenterology) reassigns their Medicare billing to Nezar A. Shobassy, M.D.P.A.. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Nezar A. Shobassy, M.D.P.A. was last updated on July 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.