Tian Zhang, M.D.
NPI 1083858443ActiveIndividual· Internal Medicine, Medical Oncology· Dallas, TX
Internal Medicine, Medical Oncology (M.D.) in Dallas, Texas, trained at Harvard Medical School (class of 2009). Their prescriptions cost Medicare Part D more than their services did: $2,286,405 for 594 claims, against $37,590 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 15 companies reporting payments in 2025, $25,345 in all, mostly consulting fees.
Overview
| NPI | 1083858443 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 28, 2009 |
| Last updated in NPPES | Oct 1, 2021 |
| Certified by provider | Oct 1, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | 32452503 | NC |
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 - Medical Oncology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 137 |
|---|---|
| Services billed | 356 across 10 procedure codes |
| Paid by Medicare | $37,590 |
Part D prescriptions in 2024
| Prescriptions (claims) | 594 · 793 30-day fills |
|---|---|
| Patients | 105 |
| Total drug cost | $2,286,405 |
| Generic share | 69% of claims |
Education and affiliations
| Medical school | Harvard Medical School |
|---|---|
| Graduation year | 2009 |
| Medicare specialty | Medical Oncology |
| Telehealth | Offers telehealth |
Medical group
- University of Texas Southwestern Medical Center at DallasDallas, TX · 3,187 clinicians
Hospital affiliation
Industry payments (Open Payments)
- 2025$25,345 · 47 payments from 15 companies
- 2024$33,070 · 43 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $6,443 | 7 |
| E.R. Squibb & Sons, L.L.C. | $5,498 | 15 |
| Eli Lilly and Company | $3,696 | 3 |
| Astellas Pharma US Inc | $2,100 | 1 |
| Janssen Scientific Affairs, LLC | $2,016 | 4 |
What the 2025 payments were for
- Consulting Fee$20,809 · 10 payments
- Food and Beverage$2,382 · 29 payments
- Travel and Lodging$1,419 · 6 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$700.00 · 1 payment
- Education$35.06 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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