Active NPI
Advanced Southern Gastroenterology PLLC
- Gastroenterology Physician
- Corpus Christi, TX
National Provider Identifier
1881534501
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Gastroenterology Physician
- Legal business name
- ADVANCED SOUTHERN GASTROENTEROLOGY PLLC
- Practice address
- 535 Gordon St
Corpus Christi, TX 78404-2535 - Phone
- (361) 320-1890
- NPI assigned
- Mar 31, 2026
- Organization subpart
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Authorized official
- Name
- Mr. Amir R Ahmed, MD
- Title
- President
- Phone
- (832) 622-6621
Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Gastroenterology Physician | 207RG0100X | Primary |
Addresses
Primary practice location
535 Gordon St
Corpus Christi, TX 78404-2535
Mailing address
27211 Ashford Sky LN
Katy, TX 77494-3715
Other practice location 1
601 E San Antonio St Ste 303W
Victoria, TX 77901-6002
Phone (361) 320-1890
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in TX
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| O20260422000444 | TX | Part B Supplier - Clinic/Group Practice | 3274000765 |
Receives reassigned benefits from 4 practitioners Practice locations: Fulshear, TX |
National Provider Directory
National Provider DirectoryLocations
5210 FM 1463 Rd
Fulshear, TX 77494
Practitioners & affiliated clinicians
Practitioners 3
Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1774915200000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1785283200000",
"number": "1881534501",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "27211 ASHFORD SKY LN",
"city": "KATY",
"state": "TX",
"postal_code": "774943715",
"fax_number": "361-320-1891"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "535 GORDON ST",
"city": "CORPUS CHRISTI",
"state": "TX",
"postal_code": "784042535",
"telephone_number": "361-320-1890"
}
],
"practiceLocations": [
{
"address_1": "601 E San Antonio St Ste 303W",
"address_purpose": "LOCATION",
"city": "Victoria",
"state": "TX",
"postal_code": "779016002",
"country_code": "US",
"telephone_number": "361-320-1890",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"organization_name": "ADVANCED SOUTHERN GASTROENTEROLOGY PLLC",
"organizational_subpart": "NO",
"enumeration_date": "2026-03-31",
"last_updated": "2026-07-29",
"certification_date": "2026-07-29",
"status": "A",
"authorized_official_last_name": "AHMED",
"authorized_official_first_name": "AMIR",
"authorized_official_middle_name": "R",
"authorized_official_title_or_position": "PRESIDENT",
"authorized_official_telephone_number": "832-622-6621",
"authorized_official_name_prefix": "Mr.",
"authorized_official_credential": "MD"
},
"taxonomies": [
{
"code": "207RG0100X",
"taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
"desc": "Internal Medicine, Gastroenterology",
"state": null,
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Corpus Christi, TX
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- Advanced Kidney and Hypertension Center, PLLC
- Advanced Lymphedema Specialists
- Advanced Medical Care P.a.
- Advanced Steps Medical Equipment, Inc
- Carl H Aeby, DPM
- Aegis Group Practice LLC
- Aeon Homecare & Hospice, LLC
- Affiliated Therapy Group Practice, Inc
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 29, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.