Quick answers
- Which hospitals does Dinesh Sethi work at?
- Medicare's official clinician data lists Dinesh Sethi at 2 hospitals: Mount Sinai South Nassau and St John's Episcopal Hospital at South Shore. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Dinesh Sethi see patients?
- Medicare's clinician data lists 2 practice locations, including Oceanside, NY and Oakdale, NY. Call before your visit to confirm the address.
- What is Dinesh Sethi's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Dinesh Sethi accept Medicare assignment?
- Yes. Medicare's clinician data says Dinesh Sethi 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 Dinesh Sethi?
- (718) 639-9100, as listed in official Medicare / NPI Registry data.
- What is Dinesh Sethi's NPI number?
- 1194763920. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Dinesh Sethi works
Medicare's Facility Affiliation Data lists Dinesh Sethi at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mount Sinai South NassauOceanside, NY · Acute Care Hospital · CCN 330198
- St John's Episcopal Hospital at South ShoreFar Rockaway, NY · Acute Care Hospital · CCN 330395
Practice locations
Addresses where Dinesh Sethi is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Healthy WayOceanside, NY 11572 (718) 639‑9100
- 305 Locust AveOakdale, NY 11769 (631) 218‑5900
Group practices
Medicare enrollment lists Dinesh Sethi as a member of these groups (CMS data updated 2026-10-02).
- Mount Sinai School of Medicine148 clinicians in the group
- Dinesh Sethi Physician PC8 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Oceanside
Clinicians with the same Medicare primary specialty in Oceanside, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1998 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1194763920 |
| 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