Manish Ghanashyam Amin, MD
NPI 1225093271ActiveIndividual· Internal Medicine, Gastroenterology· Chandler, AZ
Internal Medicine, Gastroenterology (MD) in Chandler, Arizona, trained at Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc) (class of 1999). 437 Medicare patients in 2024, $141,685 paid; nearly all of their 766 Part D prescriptions were generic (96%). Abbvie Inc. was the largest of 8 companies reporting payments in 2025, $530.62 in all, mostly food and beverage.
Overview
| NPI | 1225093271 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 20, 2006 |
| Last updated in NPPES | Oct 1, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 212889 | MA |
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 (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 437 |
|---|---|
| Services billed | 3,882 across 19 procedure codes |
| Paid by Medicare | $141,685 |
Part D prescriptions in 2024
| Prescriptions (claims) | 766 · 1,792 30-day fills |
|---|---|
| Patients | 286 |
| Total drug cost | $102,341 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc) |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical group
- Southeast Valley Gastroenterology Consultants, P.C.Chandler, AZ · 31 clinicians
Hospital affiliation
- Chandler Regional Medical CenterChandler, AZ
Industry payments (Open Payments)
- 2025$530.62 · 25 payments from 8 companies
- 2024$456.54 · 22 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $251.14 | 11 |
| Gilead Sciences, Inc. | $89.55 | 5 |
| Takeda Pharmaceuticals U.S.A., Inc. | $66.33 | 3 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $34.28 | 2 |
| Phathom Pharmaceuticals, Inc. | $25.52 | 1 |
What the 2025 payments were for
- Food and Beverage$530.62 · 25 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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