Quick answers
- Which hospitals does Mahavir Singh work at?
- Medicare's official clinician data lists Mahavir Singh at 1 hospital: Montefiore St Luke's Cornwall. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mahavir Singh see patients?
- Medicare's clinician data lists 1 practice location in New Windsor, NY. Call before your visit to confirm the address.
- What is Mahavir Singh's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Mahavir Singh accept Medicare assignment?
- Yes. Medicare's clinician data says Mahavir Singh 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 Mahavir Singh?
- (845) 561-8902, as listed in official Medicare / NPI Registry data.
- What is Mahavir Singh's NPI number?
- 1023193323. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mahavir Singh works
Medicare's Facility Affiliation Data lists Mahavir Singh at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Montefiore St Luke's CornwallNewburgh, NY · Acute Care Hospital · CCN 330264
Practice locations
Addresses where Mahavir Singh is enrolled with Medicare (CMS data updated 2026-10-02).
- 3074 Route 9w, Suite 100New Windsor, NY 12553 (845) 561‑8902
Specialties
- Internal Medicineprimary
Other internal medicine doctors in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1974 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1023193323 |
| 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