Prasanna C. Wickremesinghe, M.D., F.A.C.P.
NPI 1689636870ActiveIndividual· Specialist· Staten Island, NY
Specialist (M.D., F.A.C.P.) in Staten Island, New York, licensed in NY, with an NPI issued in April 2006. Their prescriptions cost Medicare Part D more than their services did: $146,033 for 1,030 claims, against $68,469 paid for services in 2024. Madrigal Pharmaceuticals was the largest of 3 companies reporting payments in 2025, $185.33 in all, mostly food and beverage. Lists Richmond University Medical Center as a hospital affiliation.
Overview
| NPI | 1689636870 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D., F.A.C.P. |
| Sole proprietor | Yes |
| NPI issued | Apr 4, 2006 |
| Last updated in NPPES | Mar 3, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | 115502 | 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 - Gastroenterology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 164 |
|---|---|
| Services billed | 596 across 15 procedure codes |
| Paid by Medicare | $68,469 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,030 · 1,707 30-day fills |
|---|---|
| Patients | 226 |
| Total drug cost | $146,033 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 1968 |
|---|---|
| Medicare specialty | Gastroenterology |
Hospital affiliation
- Richmond University Medical CenterStaten Island, NY
Industry payments (Open Payments)
- 2025$185.33 · 4 payments from 3 companies
- 2024$648.16 · 10 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Madrigal Pharmaceuticals | $140.25 | 1 |
| Exact Sciences Corporation | $23.29 | 1 |
| Phathom Pharmaceuticals, Inc. | $21.79 | 2 |
What the 2025 payments were for
- Food and Beverage$185.33 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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