Hirofumi Hashimoto, MD
NPI 1104812585ActiveIndividual· Internal Medicine· Saint Helena, CA
Internal Medicine (MD) in Saint Helena, California, trained at Stanford University School of Medicine (class of 1993). 122 Medicare patients in 2024, $37,040 paid; nearly all of their 109 Part D prescriptions were generic (91%).
Overview
| NPI | 1104812585 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Sep 21, 2005 |
| Last updated in NPPES | Mar 29, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | G83463 | 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 | 122 |
|---|---|
| Services billed | 395 across 10 procedure codes |
| Paid by Medicare | $37,040 |
Part D prescriptions in 2024
| Prescriptions (claims) | 109 · 124 30-day fills |
|---|---|
| Patients | 41 |
| Total drug cost | $4,721 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | Stanford University School of Medicine |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Internal Medicine |
Medical group
- Pacific Inpatient Medical GroupSan Francisco, CA · 132 clinicians
Hospital affiliation
- Sutter Santa Rosa Regional HospitalSanta Rosa, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 20 internal medicine physicians in Saint Helena · All internal medicine physicians in California