Stephen Siu, PA-C
NPI 1831732577ActiveIndividual· Physician Assistant· New Hyde Park, NY
Physician Assistant (PA-C) in New Hyde Park, New York, trained at Stanford University School of Medicine (class of 2020). Their prescriptions cost Medicare Part D more than their services did: $32,978 for 108 claims, against $8,547 paid for services in 2024. Galderma Laboratories, L.P. was the largest of 11 companies reporting payments in 2025, $786.61 in all, mostly food and beverage.
Overview
| NPI | 1831732577 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Oct 25, 2019 |
| Last updated in NPPES | Apr 14, 2025 |
| Certified by provider | Apr 14, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 032611-01 | NY |
| Physician Assistant | 363A00000X | 58114 | 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 - Physician Assistant (NJ); Practitioner - Physician Assistant (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 61 |
|---|---|
| Services billed | 78 across 8 procedure codes |
| Paid by Medicare | $8,547 |
Part D prescriptions in 2024
| Prescriptions (claims) | 108 · 129 30-day fills |
|---|---|
| Patients | 57 |
| Total drug cost | $32,978 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | Stanford University School of Medicine |
|---|---|
| Graduation year | 2020 |
| Medicare specialty | Physician Assistant |
Medical group
- Advanced Dermatology PCForest Hills, NY · 68 clinicians
Industry payments (Open Payments)
- 2025$786.61 · 23 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Galderma Laboratories, L.P. | $150.00 | 1 |
| Abbvie Inc. | $145.13 | 5 |
| Incyte Corporation | $121.53 | 5 |
| Novartis Pharmaceuticals Corporation | $81.91 | 2 |
| Leo Pharma Inc. | $59.78 | 2 |
What the 2025 payments were for
- Food and Beverage$786.61 · 23 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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