ADVANCED SOUTHERN GASTROENTEROLOGY PLLC
NPI 1881534501
Internal Medicine - Gastroenterology in Corpus Christi, TX
About Advanced Southern Gastroenterology Pllc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ADVANCED SOUTHERN GASTROENTEROLOGY PLLC (NPI 1881534501) is a healthcare organization registered as a gastroenterology in Corpus Christi, Texas and active in the NPI registry since March 2026. The organization maintains a secondary practice location in Victoria and lists Amir R Ahmed, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Advanced Southern Gastroenterology Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
3Medicare enrollment records show 3 clinicians reassign Medicare billing to Advanced Southern Gastroenterology PLLC, which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.
Clinicians, nearest first (3)
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 Advanced Southern Gastroenterology PLLC's NPI number?
The NPI number for Advanced Southern Gastroenterology PLLC is 1881534501. It was assigned to this organization in the NPPES registry on March 31, 2026.
Where is Advanced Southern Gastroenterology PLLC located?
Advanced Southern Gastroenterology PLLC is located at 535 Gordon St, Corpus Christi, TX 78404. The listed phone number is (361) 320-1890.
What is Advanced Southern Gastroenterology PLLC's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Advanced Southern Gastroenterology PLLC enrolled in Medicare?
Yes. Advanced Southern Gastroenterology PLLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Advanced Southern Gastroenterology PLLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians reassign their Medicare billing to Advanced Southern Gastroenterology PLLC, in Internal Medicine and Nurse Practitioner. 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. Of these, 1 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Advanced Southern Gastroenterology PLLC accept?
Health plans from Blue Cross and Blue Shield of Texas list Advanced Southern Gastroenterology PLLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Advanced Southern Gastroenterology PLLC was last updated on July 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Advanced Southern Gastroenterology Pllc · NPI 1881534501
Gastroenterology organization in Corpus Christi, Texas. Organization record, active in the CMS NPPES registry since March 31, 2026.
## Identity
- **NPI:** 1881534501 (Entity type: Organization)
- **Enumerated:** March 31, 2026
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **Organization subpart:** No
- **Authorized official:** Amir Ahmed, PRESIDENT
## Practice location
- **Address:** 535 GORDON ST, Corpus Christi, TX 78404-2535
- **Phone:** (361) 320-1890
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 3 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (2), Internal Medicine (1); 1 practice at this address · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 29, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1881534501) · Data from the CMS NPPES public registry.