Makoto Nishimura, MD
NPI 1083105290ActiveIndividual· Internal Medicine, Gastroenterology· New York, NY
Internal Medicine, Gastroenterology (MD) with Memorial Gastroenterology Group, practicing in New York, New York. 404 Medicare patients in 2024, $111,858 paid; nearly all of their 154 Part D prescriptions were generic (99%). Olympus Corporation of the Americas was the largest of 6 companies reporting payments in 2025, $46,155 in all, mostly education.
Overview
| NPI | 1083105290 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 23, 2018 |
| Last updated in NPPES | May 29, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 294075 | NY |
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 - Gastroenterology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 404 |
|---|---|
| Services billed | 871 across 56 procedure codes |
| Paid by Medicare | $111,858 |
Part D prescriptions in 2024
| Prescriptions (claims) | 154 · 292 30-day fills |
|---|---|
| Patients | 68 |
| Total drug cost | $3,138 |
| Generic share | 99% of claims |
Education and affiliations
| Graduation year | 1997 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Memorial Gastroenterology GroupNew York, NY · 24 clinicians
Industry payments (Open Payments)
- 2025$46,155 · 69 payments from 6 companies
- 2024$19,812 · 26 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Olympus Corporation of the Americas | $41,136 | 59 |
| Boston Scientific Corporation | $2,293 | 6 |
| Olympus Medical Systems Corporation | $2,010 | 1 |
| Shimadzu Precision Instruments, Inc. | $395.88 | 1 |
| Steris Corporation | $194.62 | 1 |
What the 2025 payments were for
- Education$36,850 · 12 payments
- Travel and Lodging$3,648 · 32 payments
- Consulting Fee$2,010 · 1 payment
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$1,800 · 2 payments
- Food and Beverage$1,450 · 21 payments
- Entertainment$395.88 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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