Pei H. Tsau, MD
NPI 1235203910ActiveIndividual· Thoracic Surgery (Cardiothoracic Vascular Surgery)· Palo Alto, CA
Thoracic Surgery (Cardiothoracic Vascular Surgery) (MD) in Palo Alto, California, trained at University of Arizona College of Medicine (class of 1994). Mostly services rather than prescriptions: Medicare paid $168,372 for 232 patients in 2024, with only 18 Part D claims. Edwards Lifesciences Corporation was the largest of 2 companies reporting payments in 2025, $268.08 in all, mostly food and beverage.
Overview
| NPI | 1235203910 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 17, 2006 |
| Last updated in NPPES | May 28, 2020 |
| Certified by provider | May 28, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Thoracic Surgery (Cardiothoracic Vascular Surgery) Primary | 208G00000X | C55016 | CA |
| Thoracic Surgery (Cardiothoracic Vascular Surgery) | 208G00000X | 29184 | AZ |
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 - Cardiac Surgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 232 |
|---|---|
| Services billed | 407 across 58 procedure codes |
| Paid by Medicare | $168,372 |
Part D prescriptions in 2024
| Prescriptions (claims) | 18 · 20 30-day fills |
|---|---|
| Patients | 13 |
| Total drug cost | $373.94 |
| Generic share | 94% of claims |
Education and affiliations
| Medical school | University of Arizona College of Medicine |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Cardiac Surgery |
| Secondary specialties | Thoracic Surgery |
Medical group
- Southern California Permanente Medical GroupRedlands, CA · 11,293 clinicians
Industry payments (Open Payments)
- 2025$268.08 · 5 payments from 2 companies
- 2024$596.80 · 12 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Edwards Lifesciences Corporation | $248.55 | 4 |
| Octapharma USA, Inc. | $19.53 | 1 |
What the 2025 payments were for
- Food and Beverage$268.08 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other cardiothoracic surgeons in Palo Alto
- 1043240120
- 1093913667
- 1336237247
- 1356508048
- 1366829269
- 1467694265
- 1588868020
- 1619904521
- 1700142858
- 1770926875
- 1851317341
- 1891052080
All 42 cardiothoracic surgeons in Palo Alto · All cardiothoracic surgeons in California