Melissa D. Gennarelli, M.D.
NPI 1871557249ActiveIndividual· Internal Medicine· Valhalla, NY
Internal Medicine (M.D.) in Valhalla, New York, trained at New York Medical College (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $10,227 for 57 claims, against $1,401 paid for services in 2024. Exact Sciences Corporation was the largest of 2 companies reporting payments in 2025, $53.66 in all, mostly food and beverage.
Overview
| NPI | 1871557249 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 13, 2006 |
| Last updated in NPPES | Feb 29, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 220108 | NY |
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 - Internal Medicine (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 21 |
|---|---|
| Services billed | 26 across 2 procedure codes |
| Paid by Medicare | $1,401 |
Part D prescriptions in 2024
| Prescriptions (claims) | 57 · 105 30-day fills |
|---|---|
| Patients | 17 |
| Total drug cost | $10,227 |
| Generic share | 79% of claims |
Education and affiliations
| Medical school | New York Medical College |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Internal Medicine |
Medical group
- Westchester Medical Center Advanced Physician Services PCValhalla, NY · 897 clinicians
Hospital affiliations
- Greenwich Hospital Association -Greenwich, CT
- Westchester Medical CenterValhalla, NY
Industry payments (Open Payments)
- 2025$53.66 · 2 payments from 2 companies
- 2024$69.36 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exact Sciences Corporation | $27.29 | 1 |
| Lilly USA, LLC | $26.37 | 1 |
What the 2025 payments were for
- Food and Beverage$53.66 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 69 internal medicine physicians in Valhalla · All internal medicine physicians in New York