Tohru Sato, MD
NPI 1497847248ActiveIndividual· Internal Medicine, Gastroenterology· San Carlos, CA
Internal Medicine, Gastroenterology (MD) in San Carlos, California, trained at State University of New York at Stony Brook, School of Medicine (class of 1995). Their prescriptions cost Medicare Part D more than their services did: $621,398 for 687 claims, against $84,232 paid for services in 2024. Abbvie Inc. was the largest of 10 companies reporting payments in 2025, $1,138 in all, mostly food and beverage.
Overview
| NPI | 1497847248 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 29, 2006 |
| Last updated in NPPES | Jun 8, 2020 |
| Certified by provider | Jun 8, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | A066832 | 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 - Gastroenterology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 338 |
|---|---|
| Services billed | 763 across 25 procedure codes |
| Paid by Medicare | $84,232 |
Part D prescriptions in 2024
| Prescriptions (claims) | 687 · 1,083 30-day fills |
|---|---|
| Patients | 358 |
| Total drug cost | $621,398 |
| Generic share | 73% of claims |
Education and affiliations
| Medical school | State University of New York at Stony Brook, School of Medicine |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Sutter Bay Medical FoundationFremont, CA · 3,829 clinicians
Hospital affiliations
- Peninsula Medical CenterBurlingame, CA
- Stanford Health CareStanford, CA
Industry payments (Open Payments)
- 2025$1,138 · 42 payments from 10 companies
- 2024$247.03 · 5 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $284.97 | 17 |
| Madrigal Pharmaceuticals | $223.24 | 4 |
| Lilly USA, LLC | $218.13 | 4 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $99.01 | 4 |
| Janssen Biotech, Inc. | $73.50 | 3 |
What the 2025 payments were for
- Food and Beverage$1,138 · 42 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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