Jian Guan, M.D.
NPI 1053799304ActiveIndividual· Internal Medicine, Hematology & Oncology· Houston, TX
Internal Medicine, Hematology & Oncology (M.D.) with Tmh Physician Associates PLLC and 1 other group, practicing in Houston, Texas. Their prescriptions cost Medicare Part D more than their services did: $86,595 for 148 claims, against $16,410 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 19 companies reporting payments in 2025, $684.83 in all, mostly food and beverage. Lists Houston Methodist Baytown Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1053799304 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 7, 2015 |
| Last updated in NPPES | Sep 22, 2025 |
| Certified by provider | Sep 22, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | T1083 | 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 (FL); Practitioner - Hematology/Oncology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 67 |
|---|---|
| Services billed | 142 across 10 procedure codes |
| Paid by Medicare | $16,410 |
Part D prescriptions in 2024
| Prescriptions (claims) | 148 · 170 30-day fills |
|---|---|
| Patients | 47 |
| Total drug cost | $86,595 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2002 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical groups
- Tmh Physician Associates PLLCKaty, TX · 1,690 clinicians
- Houston Methodist Specialty PhysiciansHouston, TX · 1,528 clinicians
Hospital affiliations
- Houston Methodist Baytown HospitalBaytown, TX
- Houston Methodist HospitalHouston, TX
- Houston Methodist Sugarland HospitalSugar Land, TX
- Houston Methodist the Woodlands HospitalThe Woodlands, TX
- Houston Methodist Willowbrook HospitalHouston, TX
Industry payments (Open Payments)
- 2025$684.83 · 25 payments from 19 companies
- 2024$257.05 · 10 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $142.39 | 3 |
| Ipsen Biopharmaceuticals, Inc | $63.29 | 2 |
| Glaxosmithkline, LLC. | $48.98 | 2 |
| Tempus Ai, Inc | $47.49 | 2 |
| Janssen Biotech, Inc. | $45.01 | 2 |
What the 2025 payments were for
- Food and Beverage$684.83 · 25 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 280 hematologist-oncologists in Houston · All hematologist-oncologists in Texas