Tzu-Shao Chen, MD
NPI 1639361082ActiveIndividual· Anesthesiology· Allentown, PA
Anesthesiology (MD) with Jefferson Anesthesiologist Services PC, practicing in Allentown, Pennsylvania. Medicare paid $17,586 for services to 230 patients in 2024. Merck Sharp & Dohme LLC was the largest of 2 companies reporting payments in 2025, $44.50 in all, mostly food and beverage. Lists Samaritan Medical Center as a hospital affiliation.
Overview
| NPI | 1639361082 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 9, 2007 |
| Last updated in NPPES | May 20, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | 260448 | NY |
| Internal Medicine | 207R00000X | MT190153 | 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 - Anesthesiology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 230 |
|---|---|
| Services billed | 245 across 44 procedure codes |
| Paid by Medicare | $17,586 |
Education and affiliations
| Graduation year | 2007 |
|---|---|
| Medicare specialty | Anesthesiology |
| Secondary specialties | Internal Medicine |
Medical group
- Jefferson Anesthesiologist Services PCWatertown, NY · 36 clinicians
Hospital affiliation
- Samaritan Medical CenterWatertown, NY
Industry payments (Open Payments)
- 2025$44.50 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $29.77 | 2 |
| Pacira Pharmaceuticals Incorporated | $14.73 | 1 |
What the 2025 payments were for
- Food and Beverage$44.50 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 70 anesthesiologists in Allentown · All anesthesiologists in Pennsylvania