Lillian Yao Chang
NPI 1922630433ActiveIndividual· Physician Assistant· Mountain View, CA
Physician Assistant with Sutter Bay Medical Foundation, practicing in Mountain View, California. 70 Medicare patients in 2024, $5,675 paid; nearly all of their 92 Part D prescriptions were generic (92%).
Overview
| NPI | 1922630433 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Feb 12, 2020 |
| Last updated in NPPES | Oct 12, 2023 |
| Certified by provider | Oct 12, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 59816 | CA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Physician Assistant (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 70 |
|---|---|
| Services billed | 82 across 12 procedure codes |
| Paid by Medicare | $5,675 |
Part D prescriptions in 2024
| Prescriptions (claims) | 92 · 195 30-day fills |
|---|---|
| Patients | 45 |
| Total drug cost | $3,072 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 2021 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical group
- Sutter Bay Medical FoundationFremont, CA · 3,829 clinicians
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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