Sandy Liu, M.D.
NPI 1174808224ActiveIndividual· Internal Medicine, Hematology & Oncology· Orange, CA
Internal Medicine, Hematology & Oncology (M.D.) in Orange, California, trained at George Washington University School of Medicine (class of 2011). Their prescriptions cost Medicare Part D more than their services did: $3,432,987 for 587 claims, against $40,683 paid for services in 2024. Exelixis Inc. was the largest of 10 companies reporting payments in 2025, $64,988 in all, mostly compensation for serving as faculty or as a speaker for a me.
Overview
| NPI | 1174808224 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Oct 19, 2011 |
| Last updated in NPPES | May 7, 2026 |
| Certified by provider | May 7, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | A123123 | CA |
| Internal Medicine | 207R00000X | A123123 | CA |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 164 |
|---|---|
| Services billed | 364 across 5 procedure codes |
| Paid by Medicare | $40,683 |
Part D prescriptions in 2024
| Prescriptions (claims) | 587 · 676 30-day fills |
|---|---|
| Patients | 96 |
| Total drug cost | $3,432,987 |
Education and affiliations
| Medical school | George Washington University School of Medicine |
|---|---|
| Graduation year | 2011 |
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- City of Hope Medical FoundationDuarte, CA · 982 clinicians
- Uc RegentsOrange, CA · 319 clinicians
Hospital affiliations
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
- Uci Health-OrangeOrange, CA
Industry payments (Open Payments)
- 2025$64,988 · 95 payments from 10 companies
- 2024$61,417 · 94 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exelixis Inc. | $35,835 | 57 |
| Astellas Pharma US Inc | $23,761 | 21 |
| Eisai Inc. | $1,794 | 2 |
| Astrazeneca Pharmaceuticals LP | $1,706 | 2 |
| Janssen Biotech, Inc. | $1,277 | 3 |
What the 2025 payments were for
- Compensation for serving as faculty or as a speaker for a medical education program$26,745 · 9 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$20,550 · 7 payments
- Travel and Lodging$9,651 · 37 payments
- Consulting Fee$3,838 · 3 payments
- Honoraria$2,310 · 1 payment
- Food and Beverage$1,895 · 38 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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