Mark Hsueh Tseng, M.D
NPI 1669631651ActiveIndividual· Surgery· Auburn, WA
Surgery (M.D) in Auburn, Washington, trained at State University of New York Downstate Medical Center (class of 2002). 17 Medicare patients in 2024, $3,634 paid; nearly all of their 122 Part D prescriptions were generic (96%). Mentor Worldwide LLC reported $17.24 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1669631651 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D |
| Sole proprietor | Yes |
| NPI issued | Jun 4, 2008 |
| Last updated in NPPES | Oct 4, 2024 |
| Certified by provider | Oct 4, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | MD60125808 | WA |
| Surgery | 208600000X | 244617 | NY |
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 (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 17 |
|---|---|
| Services billed | 38 across 13 procedure codes |
| Paid by Medicare | $3,634 |
Part D prescriptions in 2024
| Prescriptions (claims) | 122 · 168 30-day fills |
|---|---|
| Patients | 27 |
| Total drug cost | $1,633 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | State University of New York Downstate Medical Center |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | General Surgery |
Hospital affiliation
- Multicare Auburn Medical CenterAuburn, WA
Industry payments (Open Payments)
- 2025$17.24 · 1 payment from 1 company
- 2024$90.26 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mentor Worldwide LLC | $17.24 | 1 |
What the 2025 payments were for
- Food and Beverage$17.24 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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