Quick answers
- Which hospitals does Evan Diamond work at?
- Medicare's official clinician data lists Evan Diamond at 5 hospitals: Good Samaritan Hospital Medical Center, Long Island Community Hospital, Ns/Lij HS Huntington Hospital, Ns/Lij HS Southside Hospital and St Catherine of Siena Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Evan Diamond see patients?
- Medicare's clinician data lists 2 practice locations, including New Hyde Park, NY. Call before your visit to confirm the address.
- What is Evan Diamond's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Evan Diamond accept Medicare assignment?
- Yes. Medicare's clinician data says Evan Diamond 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.
- Does Evan Diamond offer telehealth?
- Medicare's clinician data says Evan Diamond offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Evan Diamond?
- (631) 751-3000, as listed in official Medicare / NPI Registry data.
- What is Evan Diamond's NPI number?
- 1457771008. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Evan Diamond works
Medicare's Facility Affiliation Data lists Evan Diamond at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Good Samaritan Hospital Medical CenterWest Islip, NY · Acute Care Hospital · CCN 330286
- Long Island Community HospitalPatchogue, NY · Acute Care Hospital · CCN 330141
- Ns/Lij HS Huntington HospitalHuntington, NY · Acute Care Hospital · CCN 330045
- Ns/Lij HS Southside HospitalBay Shore, NY · Acute Care Hospital · CCN 330043
- St Catherine of Siena HospitalSmithtown, NY · Acute Care Hospital · CCN 330401
Practice locations
Addresses where Evan Diamond is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Delaware Dr, Suite 101New Hyde Park, NY 11042 (631) 751‑3000
- 3111 New Hyde Park RdNew Hyde Park, NY 11042 (574) 835‑4509
Group practices
Medicare enrollment lists Evan Diamond as a member of this group (CMS data updated 2026-10-02).
- North Shore Hematology Oncology Associates PC479 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in New Hyde Park
Clinicians with the same Medicare primary specialty in New Hyde Park, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2014 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1457771008 |
| 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