Ammar Hasan, MD
NPI 1215596523ActiveIndividual· Internal Medicine· Kingwood, TX
Internal Medicine (MD) with Hospital Medicine Services of Tx, PLLC, practicing in Kingwood, Texas. 200 Medicare patients in 2024, $37,764 paid; nearly all of their 87 Part D prescriptions were generic (91%). Align Technology, Inc. was the largest of 2 companies reporting payments in 2025, $322.86 in all, mostly food and beverage. Lists HCA Houston Healthcare Kingwood as a hospital affiliation.
Overview
| NPI | 1215596523 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 10, 2019 |
| Last updated in NPPES | Jun 21, 2023 |
| Certified by provider | Jun 21, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | T4639 | TX |
| Internal Medicine | 207R00000X | 036161038 | IL |
| Hospitalist | 208M00000X | 036161038 | IL |
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 - Hospitalist (IL); Practitioner - Internal Medicine (IN); Practitioner - Internal Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 200 |
|---|---|
| Services billed | 517 across 7 procedure codes |
| Paid by Medicare | $37,764 |
Part D prescriptions in 2024
| Prescriptions (claims) | 87 · 88 30-day fills |
|---|---|
| Patients | 48 |
| Total drug cost | $5,737 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Hospital Medicine Services of Tx, PLLCLive Oak, TX · 378 clinicians
Hospital affiliation
- HCA Houston Healthcare KingwoodKingwood, TX
Industry payments (Open Payments)
- 2025$322.86 · 4 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Align Technology, Inc. | $172.87 | 3 |
| Inspire Medical Systems, Inc. | $149.99 | 1 |
What the 2025 payments were for
- Food and Beverage$189.16 · 2 payments
- Education$125.00 · 1 payment
- Gift$8.70 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 54 internal medicine physicians in Kingwood · All internal medicine physicians in Texas