Ponnandai S. Somasundar, MD
NPI 1538212923ActiveIndividual· Surgery· Providence, RI
Surgery (MD) with Prospect Chartercare Rwmc, LLC, practicing in Providence, Rhode Island. Mostly services rather than prescriptions: Medicare paid $19,986 for 35 patients in 2024, with only 42 Part D claims. Intuitive Surgical, Inc. was the largest of 4 companies reporting payments in 2025, $1,667 in all, mostly food and beverage. Lists Roger Williams Medical Center as a hospital affiliation.
Overview
| NPI | 1538212923 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 19, 2007 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | MD12223 | RI |
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 - Surgical Oncology (RI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 35 |
|---|---|
| Services billed | 62 across 18 procedure codes |
| Paid by Medicare | $19,986 |
Part D prescriptions in 2024
| Prescriptions (claims) | 42 · 52 30-day fills |
|---|---|
| Patients | 19 |
| Total drug cost | $16,461 |
| Generic share | 95% of claims |
Education and affiliations
| Graduation year | 1990 |
|---|---|
| Medicare specialty | Surgical Oncology |
Medical group
- Prospect Chartercare Rwmc, LLCProvidence, RI · 65 clinicians
Hospital affiliation
- Roger Williams Medical CenterProvidence, RI
Industry payments (Open Payments)
- 2025$1,667 · 9 payments from 4 companies
- 2024$1,182 · 12 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Intuitive Surgical, Inc. | $1,364 | 4 |
| Medtronic, Inc. | $219.27 | 3 |
| Astrazeneca Pharmaceuticals LP | $68.49 | 1 |
| Surgical Specialties Corporation (US), Inc. (DBA Corza Medical) | $15.08 | 1 |
What the 2025 payments were for
- Food and Beverage$999.57 · 6 payments
- Travel and Lodging$598.79 · 2 payments
- Education$68.49 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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