Benjamin Tsai, M.D.
NPI 1841533502ActiveIndividual· Hospitalist· Berkeley, CA
Hospitalist (M.D.) in Berkeley, California, trained at University of California, San Diego School of Medicine (class of 2013). 187 Medicare patients in 2024, $42,594 paid; nearly all of their 106 Part D prescriptions were generic (91%). Davol Inc. reported $75.37 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1841533502 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 1, 2013 |
| Last updated in NPPES | Feb 17, 2021 |
| Certified by provider | Feb 17, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Hospitalist Primary | 208M00000X | A132840 | CA |
| Internal Medicine | 207R00000X | 1841533502 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 187 |
|---|---|
| Services billed | 404 across 10 procedure codes |
| Paid by Medicare | $42,594 |
Part D prescriptions in 2024
| Prescriptions (claims) | 106 · 112 30-day fills |
|---|---|
| Patients | 54 |
| Total drug cost | $12,266 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | University of California, San Diego School of Medicine |
|---|---|
| Graduation year | 2013 |
| Medicare specialty | Internal Medicine |
Medical group
- Sutter Bay Medical FoundationFremont, CA · 3,829 clinicians
Hospital affiliations
- Alta Bates Summit Medical CenterOakland, CA
- Alta Bates Summit Medical Center - Alta Bates CampBerkeley, CA
Industry payments (Open Payments)
- 2025$75.37 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Davol Inc. | $75.37 | 1 |
What the 2025 payments were for
- Food and Beverage$75.37 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 36 hospitalists in Berkeley · All hospitalists in California