Shamanthy Ratnasingam, M.D
NPI 1184076507ActiveIndividual· Hospitalist· Middletown, NY
Hospitalist (M.D) with Crystal Run Healthcare Physicians LLP and 5 other groups, practicing in Middletown, New York. In 2024 Medicare paid $115,691 for 654 patients, and Part D covered 751 of their prescriptions, 85% of them generic. Lists Cayuga Medical Center at Ithaca and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1184076507 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D |
| Sole proprietor | No |
| NPI issued | Jul 9, 2016 |
| Last updated in NPPES | Jun 21, 2026 |
| Certified by provider | Jun 21, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Hospitalist Primary | 208M00000X | 299495 | 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 | 654 |
|---|---|
| Services billed | 1,303 across 11 procedure codes |
| Paid by Medicare | $115,691 |
Part D prescriptions in 2024
| Prescriptions (claims) | 751 · 1,086 30-day fills |
|---|---|
| Patients | 358 |
| Total drug cost | $63,423 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical groups
- Crystal Run Healthcare Physicians LLPMiddletown, NY · 362 clinicians
- Cayuga Medical Associates PCIthaca, NY · 282 clinicians
- Southwest Suffolk Medical PCSmithtown, NY · 199 clinicians
- Nicholas H Noyes Memorial HospitalDansville, NY · 133 clinicians
- St James HospitalHornell, NY · 124 clinicians
- Central Suffolk HospitalRiverhead, NY · 95 clinicians
Hospital affiliations
- Cayuga Medical Center at IthacaIthaca, NY
- Good Samaritan Hospital Medical CenterWest Islip, NY
- Nicholas H Noyes Memorial HospitalDansville, NY
- Peconic Bay Medical CenterRiverhead, NY
- St Anthony Community HospitalWarwick, NY
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 64 hospitalists in Middletown · All hospitalists in New York