Ting-Hui Hsieh, M.D.
NPI 1326234667ActiveIndividual· Internal Medicine, Gastroenterology· Katy, TX
Internal Medicine, Gastroenterology (M.D.) with Houston Gastro Institute PLLC, practicing in Katy, Texas. Their prescriptions cost Medicare Part D more than their services did: $189,155 for 497 claims, against $80,259 paid for services in 2024. Abbvie Inc. was the largest of 19 companies reporting payments in 2025, $3,068 in all, mostly food and beverage. Lists Houston Methodist West Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1326234667 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 20, 2007 |
| Last updated in NPPES | Nov 1, 2026 |
| Certified by provider | Nov 1, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | V3325 | TX |
| Internal Medicine, Gastroenterology | 207RG0100X | 16074 | NV |
| Internal Medicine, Hepatology | 207RI0008X | AFE105790 | CA |
| Internal Medicine, Gastroenterology | 207RG0100X | AFE105790 | CA |
| Internal Medicine, Hepatology | 207RI0008X | 16074 | NV |
| Internal Medicine, Hepatology | 207RI0008X | V3325 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 429 |
|---|---|
| Services billed | 639 across 27 procedure codes |
| Paid by Medicare | $80,259 |
Part D prescriptions in 2024
| Prescriptions (claims) | 497 · 1,046 30-day fills |
|---|---|
| Patients | 209 |
| Total drug cost | $189,155 |
| Generic share | 80% of claims |
Education and affiliations
| Graduation year | 1999 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Houston Gastro Institute PLLCKaty, TX · 2 clinicians
Hospital affiliations
- Houston Methodist West HospitalHouston, TX
- Memorial Hermann Katy HospitalKaty, TX
Industry payments (Open Payments)
- 2025$3,068 · 89 payments from 19 companies
- 2024$1,479 · 50 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $512.32 | 22 |
| Gilead Sciences, Inc. | $411.16 | 10 |
| Janssen Biotech, Inc. | $398.60 | 8 |
| Neuraxis, Inc. | $332.84 | 4 |
| Genzyme Corporation | $233.09 | 4 |
What the 2025 payments were for
- Food and Beverage$3,068 · 89 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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