James Xunhai Xu, M.D.
NPI 1104003342ActiveIndividual· Internal Medicine, Hematology & Oncology· Rockville, MD
Internal Medicine, Hematology & Oncology (M.D.) in Rockville, Maryland, trained at University of Minnesota Medical School (class of 2006). In 2024 Medicare paid $2,521,188 for 615 patients, and Part D covered 1,252 of their prescriptions, 70% of them generic. Janssen Biotech, Inc. was the largest of 38 companies reporting payments in 2025, $2,499 in all, mostly food and beverage.
Overview
| NPI | 1104003342 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 30, 2008 |
| Last updated in NPPES | Dec 29, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | D76899 | MD |
| Internal Medicine | 207R00000X | 252738-1 | NY |
| Internal Medicine, Hematology & Oncology | 207RH0003X | MD13918 | RI |
| Internal Medicine, Hematology & Oncology | 207RH0003X | MD041835 | DC |
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 - Hematology/Oncology (DC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 615 |
|---|---|
| Services billed | 199,785 across 110 procedure codes |
| Paid by Medicare | $2,521,188 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,252 · 1,572 30-day fills |
|---|---|
| Patients | 175 |
| Total drug cost | $2,624,024 |
| Generic share | 70% of claims |
Education and affiliations
| Medical school | University of Minnesota Medical School |
|---|---|
| Graduation year | 2006 |
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Hematology, Internal Medicine, Medical Oncology |
| Telehealth | Offers telehealth |
Medical group
- Potomac Oncology and Hematology, LLCRockville, MD · 3 clinicians
Hospital affiliations
- Adventist Healthcare Shady Grove Medical CenterRockville, MD
- Holy Cross Germantown HospitalGermantown, MD
- Holy Cross HospitalSilver Spring, MD
- Suburban HospitalBethesda, MD
Other facilities
- Holy Cross Home Care and HospiceHome health agency · Silver Spring, MD
Industry payments (Open Payments)
- 2025$2,499 · 106 payments from 38 companies
- 2024$2,098 · 83 payments from 36 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $271.63 | 13 |
| Novartis Pharmaceuticals Corporation | $256.26 | 10 |
| Daiichi Sankyo Inc. | $201.18 | 9 |
| Astrazeneca Pharmaceuticals LP | $170.37 | 7 |
| Merck Sharp & Dohme LLC | $149.64 | 6 |
What the 2025 payments were for
- Food and Beverage$2,483 · 105 payments
- Education$16.40 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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