Chao Sun, M.D.
NPI 1013118884ActiveIndividual· Preventive Medicine, Occupational Medicine· Pleasanton, CA
Preventive Medicine, Occupational Medicine (M.D.) in Pleasanton, California, licensed in CA, with an NPI issued in May 2007. 107 Medicare patients in 2024, $179,835 paid; nearly all of their 595 Part D prescriptions were generic (96%). Rxsight Inc reported $55.11 in payments in 2024, mostly food and beverage.
Overview
| NPI | 1013118884 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 30, 2007 |
| Last updated in NPPES | Aug 21, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Preventive Medicine, Occupational Medicine Primary | 2083X0100X | A101860 | 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 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - General Practice (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 107 |
|---|---|
| Services billed | 1,849 across 9 procedure codes |
| Paid by Medicare | $179,835 |
Part D prescriptions in 2024
| Prescriptions (claims) | 595 · 1,425 30-day fills |
|---|---|
| Patients | 90 |
| Total drug cost | $24,580 |
| Generic share | 96% of claims |
Education and affiliations
| Graduation year | 1983 |
|---|---|
| Medicare specialty | General Practice |
| Secondary specialties | Preventive Medicine |
Industry payments (Open Payments)
- 2024$55.11 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Rxsight Inc | $55.11 | 1 |
What the 2024 payments were for
- Food and Beverage$55.11 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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