Siwen Hu-Lieskovan, MD, PHD
NPI 1578864864ActiveIndividual· Internal Medicine· Los Angeles, CA
Internal Medicine (MD, PHD) in Los Angeles, California, trained at University of California, Geffen School of Medicine (class of 2014). Their prescriptions cost Medicare Part D more than their services did: $187,889 for 198 claims, against $28,700 paid for services in 2024. Amgen Inc. was the largest of 2 companies reporting payments in 2025, $7,965 in all, mostly consulting fees.
Overview
| NPI | 1578864864 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD, PHD |
| Sole proprietor | No |
| NPI issued | Nov 3, 2010 |
| Last updated in NPPES | Oct 20, 2021 |
| Certified by provider | Oct 20, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A114229 | CA |
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 - Hematology/Oncology (CA); Practitioner - Hematology/Oncology (UT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 85 |
|---|---|
| Services billed | 565 across 6 procedure codes |
| Paid by Medicare | $28,700 |
Part D prescriptions in 2024
| Prescriptions (claims) | 198 · 233 30-day fills |
|---|---|
| Patients | 41 |
| Total drug cost | $187,889 |
| Generic share | 78% of claims |
Education and affiliations
| Medical school | University of California, Geffen School of Medicine |
|---|---|
| Graduation year | 2014 |
| Medicare specialty | Hematology/Oncology |
Medical group
- University of Utah Adult ServicesFarmington, UT · 1,788 clinicians
Hospital affiliations
- Intermountain Health Logan Regional HospitalLogan, UT
- University of Utah Hospital and ClinicsSalt Lake City, UT
Industry payments (Open Payments)
- 2025$7,965 · 4 payments from 2 companies
- 2024$1,230 · 4 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $6,915 | 3 |
| Delcath Systems | $1,050 | 1 |
What the 2025 payments were for
- Consulting Fee$7,910 · 3 payments
- Food and Beverage$54.91 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine providers in Los Angeles
- 1609269885
- 1902464449
- 1447735824
- 1013109834
- 1497403141
- 1245561828
- 1518146919
- 1538129846
- 1124214150
- 1114037181
- 1306455787
- 1073367264