Vernu Visvalingam, MD
NPI 1396700274ActiveIndividual· Internal Medicine, Gastroenterology· Leominster, MA
Internal Medicine, Gastroenterology (MD) in Leominster, Massachusetts, trained at Icahn School of Medicine at Mount Sinai (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $475,899 for 885 claims, against $96,949 paid for services in 2024. Janssen Biotech, Inc. was the largest of 18 companies reporting payments in 2025, $1,392 in all, mostly food and beverage.
Overview
| NPI | 1396700274 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 20, 2006 |
| Last updated in NPPES | May 8, 2025 |
| Certified by provider | Dec 8, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | ME84370 | FL |
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 (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 413 |
|---|---|
| Services billed | 917 across 23 procedure codes |
| Paid by Medicare | $96,949 |
Part D prescriptions in 2024
| Prescriptions (claims) | 885 · 1,528 30-day fills |
|---|---|
| Patients | 376 |
| Total drug cost | $475,899 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | Icahn School of Medicine at Mount Sinai |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Center for Digestive Wellness PCLeominster, MA · 4 clinicians
Hospital affiliations
- Umass Memorial Healthalliance HospitalsLeominster, MA
- Umass Memorial Medical Center/University CampusWorcester, MA
Industry payments (Open Payments)
- 2025$1,392 · 74 payments from 18 companies
- 2024$1,720 · 84 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $299.62 | 16 |
| Abbvie Inc. | $221.38 | 11 |
| Phathom Pharmaceuticals, Inc. | $175.23 | 13 |
| Takeda Pharmaceuticals U.S.A., Inc. | $161.01 | 10 |
| Gilead Sciences, Inc. | $145.32 | 6 |
What the 2025 payments were for
- Food and Beverage$1,380 · 73 payments
- Education$12.42 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 16 gastroenterologists in Leominster · All gastroenterologists in Massachusetts