Cassie Li Xu, M.D.
NPI 1770947509ActiveIndividual· Internal Medicine· Tomball, TX
Internal Medicine (M.D.) in Tomball, Texas, trained at Indiana University School of Medicine (class of 2016). 268 Medicare patients in 2024, $67,474 paid; nearly all of their 572 Part D prescriptions were generic (90%).
Overview
| NPI | 1770947509 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Apr 7, 2016 |
| Last updated in NPPES | Sep 13, 2021 |
| Certified by provider | Aug 29, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | R9704 | TX |
| Hospitalist | 208M00000X | R9704 | 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 - Internal Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 268 |
|---|---|
| Services billed | 805 across 7 procedure codes |
| Paid by Medicare | $67,474 |
Part D prescriptions in 2024
| Prescriptions (claims) | 572 · 729 30-day fills |
|---|---|
| Patients | 223 |
| Total drug cost | $30,917 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | Indiana University School of Medicine |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | Internal Medicine |
Medical group
- Ddrg Physicians LLCTomball, TX · 3 clinicians
Hospital affiliation
- HCA Houston Healthcare TomballTomball, TX
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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