Frank Da Shin, M.D.
NPI 1003992264ActiveIndividual· Internal Medicine· San Jose, CA
Internal Medicine (M.D.) in San Jose, California, trained at Rush Medical College of Rush University (class of 1993). Their prescriptions cost Medicare Part D more than their services did: $275,994 for 6,124 claims, against $56,892 paid for services in 2024. Gilead Sciences, Inc. was the largest of 2 companies reporting payments in 2025, $162.03 in all, mostly food and beverage.
Overview
| NPI | 1003992264 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Oct 31, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | G80006 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 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 | 255 |
|---|---|
| Services billed | 791 across 14 procedure codes |
| Paid by Medicare | $56,892 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,124 · 14,748 30-day fills |
|---|---|
| Patients | 553 |
| Total drug cost | $275,994 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | Rush Medical College of Rush University |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Internal Medicine |
Hospital affiliation
- El Camino HealthMountain View, CA
Other facilities
- Centerwell Asian American Home HealthHome health agency · Alameda, CA
Industry payments (Open Payments)
- 2025$162.03 · 13 payments from 2 companies
- 2024$166.19 · 10 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Gilead Sciences, Inc. | $140.42 | 12 |
| Exact Sciences Corporation | $21.61 | 1 |
What the 2025 payments were for
- Food and Beverage$162.03 · 13 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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