Ryan Tien-Si Chung, M.D.
NPI 1528133410ActiveIndividual· Pediatrics· Aiea, HI
Pediatrics (M.D.) in Aiea, Hawaii, licensed in HI, with an NPI issued in November 2006. Enrolled in Medicare as practitioner - pediatric medicine. Merck Sharp & Dohme LLC was the largest of 4 companies reporting payments in 2025, $151.04 in all, mostly food and beverage.
Overview
| NPI | 1528133410 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 23, 2006 |
| Last updated in NPPES | Aug 10, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Pediatrics Primary | 208000000X | 12721 | HI |
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 - Pediatric Medicine (HI) |
|---|
Industry payments (Open Payments)
- 2025$151.04 · 7 payments from 4 companies
- 2024$217.30 · 9 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $62.86 | 3 |
| Pfizer Inc. | $45.00 | 2 |
| Glaxosmithkline, LLC. | $24.87 | 1 |
| Sanofi Pasteur Inc. | $18.31 | 1 |
What the 2025 payments were for
- Food and Beverage$151.04 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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