Sammy Cheuk, PA-C
NPI 1588291272ActiveIndividual· Physician Assistant, Surgical· Palo Alto, CA
Physician Assistant, Surgical (PA-C) with UCSF Health Medical Foundation, practicing in Palo Alto, California. 193 Medicare patients in 2024, $26,990 paid; nearly all of their 110 Part D prescriptions were generic (93%). Madrigal Pharmaceuticals was the largest of 3 companies reporting payments in 2025, $375.12 in all, mostly food and beverage.
Overview
| NPI | 1588291272 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | Yes |
| NPI issued | Mar 24, 2020 |
| Last updated in NPPES | Apr 3, 2024 |
| Certified by provider | Apr 3, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Surgical Primary | 363AS0400X | 59817 | CA |
| Physician Assistant | 363A00000X | 59817 | 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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 193 |
|---|---|
| Services billed | 701 across 50 procedure codes |
| Paid by Medicare | $26,990 |
Part D prescriptions in 2024
| Prescriptions (claims) | 110 · 121 30-day fills |
|---|---|
| Patients | 77 |
| Total drug cost | $3,238 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 2021 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- UCSF Health Medical FoundationOakland, CA · 66 clinicians
Industry payments (Open Payments)
- 2025$375.12 · 3 payments from 3 companies
- 2024$182.82 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Madrigal Pharmaceuticals | $129.87 | 1 |
| Lilly USA, LLC | $122.86 | 1 |
| Viiv Healthcare Company | $122.39 | 1 |
What the 2025 payments were for
- Food and Beverage$375.12 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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