Ronald T. Kobayashi, MD
NPI 1104975689ActiveIndividual· Surgery· Tamuning, GU
Surgery (MD) in Tamuning, Guam, licensed in GU, with an NPI issued in January 2007. Mostly services rather than prescriptions: Medicare paid $33,611 for 114 patients in 2024, with only 42 Part D claims. Lists Guam Memorial Hospital Authority as a hospital affiliation.
Overview
| NPI | 1104975689 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 10, 2007 |
| Last updated in NPPES | Feb 18, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | M001025 | GU |
| Surgery, Vascular Surgery | 2086S0129X | M001025 | GU |
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 - General Surgery (GU) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 114 |
|---|---|
| Services billed | 252 across 44 procedure codes |
| Paid by Medicare | $33,611 |
Part D prescriptions in 2024
| Prescriptions (claims) | 42 · 43 30-day fills |
|---|---|
| Patients | 24 |
| Total drug cost | $630.02 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 1980 |
|---|---|
| Medicare specialty | General Surgery |
| Secondary specialties | Vascular Surgery |
Hospital affiliation
- Guam Memorial Hospital AuthorityTamuning, GU
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Surgery providers in Tamuning
- 1972033538
- 1851574594
- 1407098999
- 1780263657
- 1164552022
- 1457643025
- 1679795603
- 1932202298
- 1780020586
- 1740259613
- 1942471628