Yi-Ping Joseph Woo, MD
NPI 1043240120ActiveIndividual· Thoracic Surgery (Cardiothoracic Vascular Surgery)· Palo Alto, CA
Thoracic Surgery (Cardiothoracic Vascular Surgery) (MD) in Palo Alto, California, trained at Perelman School of Med at the University of Pennsylvania (class of 1992). Mostly services rather than prescriptions: Medicare paid $258,473 for 89 patients in 2024, with only 22 Part D claims. Edwards Lifesciences Corporation reported $30,000 in payments in 2025, mostly travel and lodging.
Overview
| NPI | 1043240120 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 4, 2006 |
| Last updated in NPPES | Jan 16, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Thoracic Surgery (Cardiothoracic Vascular Surgery) Primary | 208G00000X | G128440 | CA |
| Thoracic Surgery (Cardiothoracic Vascular Surgery) | 208G00000X | MD055054L | PA |
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 - Cardiac Surgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 89 |
|---|---|
| Services billed | 228 across 44 procedure codes |
| Paid by Medicare | $258,473 |
Part D prescriptions in 2024
| Prescriptions (claims) | 22 · 22 30-day fills |
|---|---|
| Total drug cost | $1,717 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | Perelman School of Med at the University of Pennsylvania |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Cardiac Surgery |
| Secondary specialties | Thoracic Surgery |
Medical group
- Stanford Health CareStanford, CA · 3,122 clinicians
Hospital affiliation
- Stanford Health CareStanford, CA
Industry payments (Open Payments)
- 2025$30,000 · 38 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Edwards Lifesciences Corporation | $30,000 | 38 |
What the 2025 payments were for
- Travel and Lodging$27,700 · 2 payments
- Food and Beverage$2,300 · 36 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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