Curtis W. Siu, MD
NPI 1386613081ActiveIndividual· Internal Medicine· Laguna Hills, CA
Internal Medicine (MD) in Laguna Hills, California, trained at University of California, San Diego School of Medicine (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $381,248 for 6,562 claims, against $144,708 paid for services in 2024. Glaxosmithkline, LLC. reported $54.37 in payments in 2024, mostly food and beverage.
Overview
| NPI | 1386613081 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 15, 2006 |
| Last updated in NPPES | Apr 29, 2026 |
| Certified by provider | Apr 29, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A74829 | 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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 234 |
|---|---|
| Services billed | 2,421 across 48 procedure codes |
| Paid by Medicare | $144,708 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,562 · 16,078 30-day fills |
|---|---|
| Patients | 458 |
| Total drug cost | $381,248 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | University of California, San Diego School of Medicine |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Hospital affiliation
- Memorialcare Saddleback Medical CenterLaguna Hills, CA
Industry payments (Open Payments)
- 2024$54.37 · 2 payments from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $54.37 | 2 |
What the 2024 payments were for
- Food and Beverage$54.37 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 86 internal medicine physicians in Laguna Hills · All internal medicine physicians in California