Kanishka Bhattacharya, M.D.
NPI 1457333510ActiveIndividual· Internal Medicine, Gastroenterology· Worcester, MA
Internal Medicine, Gastroenterology (M.D.) with Umass Memorial Medical Group Inc and 3 other groups, practicing in Worcester, Massachusetts. Their prescriptions cost Medicare Part D more than their services did: $174,514 for 1,436 claims, against $34,273 paid for services in 2024. Abbvie Inc. was the largest of 13 companies reporting payments in 2025, $1,773 in all, mostly food and beverage. Lists Bridgton Hospital and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1457333510 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 15, 2005 |
| Last updated in NPPES | Apr 15, 2026 |
| Certified by provider | Apr 15, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 158037 | 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 (MA); Practitioner - Gastroenterology (ME); Practitioner - Internal Medicine (ME) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 205 |
|---|---|
| Services billed | 278 across 34 procedure codes |
| Paid by Medicare | $34,273 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,436 · 1,827 30-day fills |
|---|---|
| Patients | 1,191 |
| Total drug cost | $174,514 |
| Generic share | 79% of claims |
Education and affiliations
| Graduation year | 1983 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical groups
- Umass Memorial Medical Group IncWorcester, MA · 2,516 clinicians
- Central Maine Medical CenterLewiston, ME · 342 clinicians
- Rumford HospitalRumford, ME · 39 clinicians
- Bridgton HospitalBridgton, ME · 39 clinicians
Hospital affiliations
- Bridgton HospitalBridgton, ME
- Central Maine Medical CenterLewiston, ME
- Rumford HospitalRumford, ME
- Umass Memorial Medical Center/University CampusWorcester, MA
Industry payments (Open Payments)
- 2025$1,773 · 62 payments from 13 companies
- 2024$1,806 · 77 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $605.69 | 18 |
| Phathom Pharmaceuticals, Inc. | $263.49 | 13 |
| Boston Scientific Corporation | $169.74 | 2 |
| Gilead Sciences, Inc. | $132.96 | 5 |
| Janssen Biotech, Inc. | $121.44 | 5 |
What the 2025 payments were for
- Food and Beverage$1,773 · 62 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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