Warren Tseng, MD
NPI 1851558514ActiveIndividual· Surgery· San Diego, CA
Surgery (MD) in San Diego, California, trained at University of Kansas School of Med (Kc/Wich/Sal) (class of 2006). Part D covered 191 prescriptions written in 2024, 90% of them generic. Intuitive Surgical, Inc. was the largest of 2 companies reporting payments in 2025, $4,190 in all, mostly education.
Overview
| NPI | 1851558514 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 20, 2008 |
| Last updated in NPPES | Nov 29, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | A103915 | 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 - General Surgery (CA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 191 · 215 30-day fills |
|---|---|
| Patients | 63 |
| Total drug cost | $12,918 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | University of Kansas School of Med (Kc/Wich/Sal) |
|---|---|
| Graduation year | 2006 |
| Medicare specialty | General Surgery |
| Secondary specialties | Surgical Oncology |
Medical group
- Southern California Permanente Medical GroupRedlands, CA · 11,293 clinicians
Hospital affiliation
- Kaiser Foundation Hospital - San DiegoSan Diego, CA
Industry payments (Open Payments)
- 2025$4,190 · 13 payments from 2 companies
- 2024$101.72 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Intuitive Surgical, Inc. | $4,171 | 12 |
| Glaxosmithkline, LLC. | $18.62 | 1 |
What the 2025 payments were for
- Education$2,500 · 2 payments
- Food and Beverage$992.84 · 8 payments
- Travel and Lodging$697.11 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 184 general surgeons in San Diego · All general surgeons in California