Quick answers
- Which hospitals does Jonathan E. Ariyaratnam work at?
- Medicare's official clinician data lists Jonathan E. Ariyaratnam at 5 hospitals: Chsli St Joseph Hospital, Good Samaritan Hospital Medical Center, Long Island Community Hospital, Peconic Bay Medical Center and St Joseph Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jonathan E. Ariyaratnam see patients?
- Medicare's clinician data lists 4 practice locations, including Riverhead, NY, West Islip, NY and New York, NY. Call before your visit to confirm the address.
- What is Jonathan E. Ariyaratnam's specialty?
- Medicare lists Hospitalist as the primary specialty, and also Family Practice and Internal Medicine.
- Does Jonathan E. Ariyaratnam accept Medicare assignment?
- Medicare's clinician data says Jonathan E. Ariyaratnam may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Jonathan E. Ariyaratnam?
- (631) 548-6101, as listed in official Medicare / NPI Registry data.
- What is Jonathan E. Ariyaratnam's NPI number?
- 1134758873. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jonathan E. Ariyaratnam works
Medicare's Facility Affiliation Data lists Jonathan E. Ariyaratnam at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Chsli St Joseph HospitalBethpage, NY · Acute Care Hospital · CCN 330332
- Good Samaritan Hospital Medical CenterWest Islip, NY · Acute Care Hospital · CCN 330286
- Long Island Community HospitalPatchogue, NY · Acute Care Hospital · CCN 330141
- Peconic Bay Medical CenterRiverhead, NY · Acute Care Hospital · CCN 330107
- St Joseph HospitalBangor, ME · Acute Care Hospital · CCN 200001
Practice locations
Addresses where Jonathan E. Ariyaratnam is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Heroes WayRiverhead, NY 11901 (631) 548‑6101
- 1000 Montauk HwyWest Islip, NY 11795 (516) 813‑6875
- 111 BroadwayNew York, NY 10006 (212) 263‑9700
- 360 BroadwayBangor, ME 04401 (214) 592‑1329
Group practices
Medicare enrollment lists Jonathan E. Ariyaratnam as a member of these groups (CMS data updated 2026-10-02).
- New York University6,134 clinicians in the group
- Central Suffolk Hospital95 clinicians in the group
- Apogee Medical Group Maine PC25 clinicians in the group
Specialties
- Hospitalistprimary
- Family Practicealso
- Internal Medicinealso
Other hospitalists in Riverhead
Clinicians with the same Medicare primary specialty in Riverhead, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2020 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1134758873 |
| 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