Zadid Haq, MD
NPI 1245897537ActiveIndividual· Internal Medicine, Gastroenterology· Katy, TX
Internal Medicine, Gastroenterology (MD) in Katy, Texas, trained at Louisiana State University School of Medicine in New Orleans (class of 2019). Part D covered 78 prescriptions written in 2024, 82% of them generic. Takeda Pharmaceuticals U.S.A., Inc. was the largest of 4 companies reporting payments in 2025, $146.91 in all, mostly food and beverage.
Overview
| NPI | 1245897537 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 22, 2019 |
| Last updated in NPPES | Oct 13, 2026 |
| Certified by provider | Oct 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | W5814 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (DC); Practitioner - Gastroenterology (MD) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 78 · 140 30-day fills |
|---|---|
| Patients | 37 |
| Total drug cost | $17,378 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | Louisiana State University School of Medicine in New Orleans |
|---|---|
| Graduation year | 2019 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Johns Hopkins UniversityBaltimore, MD · 2,909 clinicians
- Johns Hopkins UniversityBaltimore, MD · 713 clinicians
Hospital affiliations
- Johns Hopkins Hospital, theBaltimore, MD
- Sibley Memorial HospitalWashington, DC
Industry payments (Open Payments)
- 2025$146.91 · 6 payments from 4 companies
- 2024$252.27 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Takeda Pharmaceuticals U.S.A., Inc. | $54.82 | 2 |
| Janssen Biotech, Inc. | $45.90 | 2 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $26.47 | 1 |
| Mallinckrodt Hospital Products Inc. | $19.72 | 1 |
What the 2025 payments were for
- Food and Beverage$146.91 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 29 gastroenterologists in Katy · All gastroenterologists in Texas