Wendy Wing-Heng Liu, MD, PHD
NPI 1790132637ActiveIndividual· Ophthalmology· Stanford, CA
Ophthalmology (MD, PHD) in Stanford, California, trained at Harvard Medical School (class of 2016). In 2024 Medicare paid $105,781 for 232 patients, and Part D covered 534 of their prescriptions, 57% of them generic. Alcon Vision LLC was the largest of 2 companies reporting payments in 2025, $263.67 in all, mostly food and beverage.
Overview
| NPI | 1790132637 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD, PHD |
| Sole proprietor | No |
| NPI issued | May 20, 2016 |
| Last updated in NPPES | Apr 4, 2024 |
| Certified by provider | Apr 4, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | A173663 | CA |
| Ophthalmology, Glaucoma Specialist | 207WX0009X | MD469717 | PA |
| Ophthalmology | 207W00000X | MD469717 | PA |
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 - Ophthalmology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 232 |
|---|---|
| Services billed | 1,133 across 29 procedure codes |
| Paid by Medicare | $105,781 |
Part D prescriptions in 2024
| Prescriptions (claims) | 534 · 940 30-day fills |
|---|---|
| Patients | 136 |
| Total drug cost | $24,041 |
| Generic share | 57% of claims |
Education and affiliations
| Medical school | Harvard Medical School |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | Ophthalmology |
Medical group
- Stanford Health CareStanford, CA · 3,122 clinicians
Hospital affiliation
- Stanford Health CareStanford, CA
Industry payments (Open Payments)
- 2025$263.67 · 4 payments from 2 companies
- 2024$379.18 · 10 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alcon Vision LLC | $185.38 | 3 |
| Abbvie Inc. | $78.29 | 1 |
What the 2025 payments were for
- Food and Beverage$263.67 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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