Southwest Gastoenterology PA
NPI 1043337074 · Gastroenterology Physician · Seguin, TX
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Southwest Gastoenterology PA is a Gastroenterology Physician organization in Seguin, TX (NPI 1043337074).
Provider details
- NPI number
- 1043337074
- Entity type
- Organization
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Tony Tsen, President(830) 372-9042
- License
- J8152 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- Tony N Tsen MD
Registry dates
- Enumerated
- 2007-03-23
- Last updated
- 2023-03-07
Frequently asked questions
- What is Southwest Gastoenterology PA's NPI number?
- Southwest Gastoenterology PA's National Provider Identifier (NPI) is 1043337074, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Southwest Gastoenterology PA?
- Southwest Gastoenterology PA is classified in the NPPES registry as Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Southwest Gastoenterology PA located?
- Southwest Gastoenterology PA's practice location on file with NPPES is 911 S State Hwy 123 Bypass, Seguin, TX 78155-9754.
- What is Southwest Gastoenterology PA's phone number?
- The practice phone number listed in the NPPES registry for Southwest Gastoenterology PA is (830) 372-9042.
- Does Southwest Gastoenterology PA accept Medicare?
- Southwest Gastoenterology PA is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Southwest Gastoenterology PA?
- The authorized official listed on Southwest Gastoenterology PA's NPPES record is Tony Tsen, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Southwest Gastoenterology PA's NPI active?
- Yes — Southwest Gastoenterology PA's NPI (1043337074) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.