Quick answers
- Which hospitals does Nigelarani Sivapalasingam work at?
- Medicare's official clinician data lists Nigelarani Sivapalasingam at 2 hospitals: Canton-Potsdam Hospital and SLHS Massena, Inc. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Nigelarani Sivapalasingam see patients?
- Medicare's clinician data lists 3 practice locations, including Massena, NY. Call before your visit to confirm the address.
- What is Nigelarani Sivapalasingam's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Nigelarani Sivapalasingam accept Medicare assignment?
- Yes. Medicare's clinician data says Nigelarani Sivapalasingam accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Nigelarani Sivapalasingam?
- (315) 769-4340, as listed in official Medicare / NPI Registry data.
- What is Nigelarani Sivapalasingam's NPI number?
- 1780846477. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Nigelarani Sivapalasingam works
Medicare's Facility Affiliation Data lists Nigelarani Sivapalasingam at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Canton-Potsdam HospitalPotsdam, NY · Acute Care Hospital · CCN 330197
- SLHS Massena, IncMassena, NY · Critical Access Hospital · CCN 331322
Practice locations
Addresses where Nigelarani Sivapalasingam is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Hospital DrMassena, NY 13662
- 1 Hospital Dr, Fl 3Massena, NY 13662
- 10 State Hwy 37bMassena, NY 13662 (315) 769‑4340
Group practices
Medicare enrollment lists Nigelarani Sivapalasingam as a member of this group (CMS data updated 2026-10-02).
- Massena Hospital Inc42 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Massena
Clinicians with the same Medicare primary specialty in Massena, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1993 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1780846477 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians