Tony N. Tsen, MD

Medicare activity in 2024

Official CMS public-use data for Tony N. Tsen, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)669 services
2. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)235 services
3. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)161 services
4. Biopsy of large bowel using a flexible endoscope (45380)148 services
5. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)120 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High blood pressure75%
• High cholesterol74%
• Arthritis42%
• Diabetes32%
• Ischemic heart disease30%
• Chronic kidney disease24%

Hospitals where Tony N. Tsen works

Medicare's Facility Affiliation Data lists Tony N. Tsen at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• Cuero Regional HospitalCuero, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 450597
• Guadalupe Regional Medical CenterSeguin, TX · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 450104
• Houston Methodist Cypress HospitalCypress, TX · Acute Care Hospital · CCN 670342
• Memorial HospitalGonzales, TX · Acute Care Hospital · Emergency services: not listed by Medicare · CCN 450235
• Otto Kaiser Memorial HospitalKenedy, TX · Critical Access Hospital · Emergency services: listed by Medicare · CCN 451364

Practice locations

Addresses where Tony N. Tsen is enrolled with Medicare (CMS data updated October 2, 2026).

• 911 S State Hwy 123 BypassSeguin, TX 78155 (830) 372‑9042

Specialties

• Gastroenterologyprimary
• Internal Medicinealso

Find other Gastroenterology doctors in Texas →

Other gastroenterologists in Texas

Clinicians with the same Medicare primary specialty in Texas — not a recommendation.

• Gabriel R. Gonzales, DO
• Harry S. Ojeas, MD
• Balu Chandra, MD
• Ian Greenberg, MD
• Laith M. Numan, MD
• Eddie L. Copelin, MD
• Thomas Tielleman, MD
• Stephen L. Steele, MD

All gastroenterologists in Texas →

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians