Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Southwest Gastoenterology PA

Gastroenterology Physician in Seguin, TX · enumerated 2007 · authorized official Tony Tsen, President.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1043337074

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Registry record

Entity type Organization (Type 2)

Legal business name Southwest Gastoenterology PA

Other name <Unavail>

Practice address 911 S State Hwy 123 Bypass, Seguin, TX, 78155

Phone (830) 372-9042

Fax (830) 372-2391

Enumeration date Mar 23, 2007

Last updated in NPPES Mar 7, 2023

Taxonomy & classification

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License J8152 (TX) Primary

Authorized official

Name Tony Tsen

Title President

Phone (830) 372-9042

Other identifiers

Identifier	Type	State	Issuer
F58934	Other	TX	UPIN
131242306	Medicaid	TX	-
J8152	Other	TX	TEXAS MEDICAL LICENSE #
V0091792	Other	TX	DPS

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where is Southwest Gastoenterology PA located?

The practice location on file with NPPES is in Seguin, TX.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2023-03-07. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-07.